7Baggers

Akamai Technologies, Inc
(NASDAQ:AKAM) 

AKAM stock logo

Akamai Technologies, Inc. provides cloud services for securing, delivering, and optimizing content and business applications over the internet in the United States and internationally. The company offers cloud and enterprise security solutions to keep infrastructure, websites, applications, applicat...

Founded: 1998
Full Time Employees: 9,800 (Dec 2022)
Founder: Daniel Lewin, Randall Kaplan, Frank Thomson Leighton, Jonathan Seelig 
CEO: Tom Leighton  
Sector: Technology
Industry: Software-Infrastructure

Share this website to your friends
• Market Cap:
• Exchange:
• Shs Outstanding:
• Employees:
• Beta:
• Return on Equity (ROE) ttm:
• Return on Assets (ROA) ttm:
• EPS ttm:
• Book value per Share:
• Cash per Share:
• Current ast per Share:
• P/E ttm:
• P/E forward:
• P/E ttm high:
• P/E ttm low:
• P/S ttm:
• P/B ttm:
• P/FCF ttm:
• PEG ratio:
• Cash Ratio ttm:
• Quick Ratio ttm:
• Current Ratio ttm:
• Gross Mgn ttm:
• EBITDA Mgn ttm:
• Operating Mgn ttm:
• Net Income Mgn ttm:
• Trailing Div yield:
• Forward Div yield:
• Payout Ratio ttm:
• Ex-Dividend date:
• Target Price High:
• Target Price Low:
• Target Price Mean:
• Number of Analysts:
• Debt Ratio ttm:
• Debt to Equity ttm:
• Total Net Debt:
At a glance:
  • Security and CDN Remain Core Growth Drivers: Akamai continues to leverage its large-scale edge network to deliver content delivery and security services, with security offerings often positioned as a key driver of revenue mix and customer expansion.
  • Edge Computing Strategy Expands Beyond Traditional CDN: The company has been investing in edge compute and cloud-adjacent capabilities to broaden its addressable market beyond content delivery, aiming to support low-latency applications closer to end users.
  • Competitive Market with Ongoing Pricing and Differentiation Pressure: Akamai operates in highly competitive CDN and cybersecurity markets, where hyperscalers and specialist vendors can pressure pricing and require continued differentiation through performance, security efficacy, and integrated platforms.
  • Enterprise Customer Focus and Cross-Sell Opportunities: Akamai’s enterprise relationships support cross-selling across delivery, security, and compute products, with customer retention and upsell execution influencing near- to mid-term growth.
Bull Thesis:
  • Strong Growth in Cloud Security Segment: Akamai's strategic pivot and investment in cloud security solutions (WAF, DDoS, Bot Management, API Security) are yielding strong revenue growth, driven by increasing enterprise demand for robust protection against evolving cyber threats. This segment typically commands higher margins than traditional CDN.
  • Strategic Edge Computing Expansion (Akamai Connected Cloud): The Akamai Connected Cloud initiative leverages Akamai's vast global network to offer distributed compute capabilities at the edge, opening new, high-growth revenue streams beyond traditional content delivery and security, particularly for latency-sensitive applications.
  • High Customer Retention and Recurring Revenue: Akamai's mission-critical services for content delivery and cybersecurity result in high customer stickiness and predictable recurring revenue streams, providing a stable financial foundation and resilience against market fluctuations.
  • Enhanced Profitability Post-Divestiture: The divestiture of the Enterprise Security business (Guardicore) allows Akamai to focus on its core, higher-margin cloud security and delivery segments, potentially leading to improved operational efficiency, increased free cash flow generation, and better overall profitability.
Bear Thesis:
  • Intensifying Competition and CDN Commoditization: The traditional CDN market faces increasing competition from hyperscale cloud providers and specialized CDNs, leading to pricing pressure and potential margin erosion in Akamai's legacy content delivery business.
  • Macroeconomic Headwinds Impacting Enterprise Spending: A challenging macroeconomic environment could lead to reduced or delayed IT spending by enterprises, particularly for new security and cloud projects, potentially slowing Akamai's growth rates across its key segments.
  • Execution Risk in Edge Computing Market: While Akamai Connected Cloud is a promising venture, the edge computing market is highly competitive. Successful execution, differentiation, and significant market adoption against established cloud providers and other edge players pose considerable risks and may take longer than anticipated to generate substantial returns.
  • Integration Complexity for Customers: Akamai offers a broad suite of security and delivery products, but integrating these diverse solutions can be complex for customers. This complexity might lead some enterprises to opt for simpler, more unified offerings from competitors.
Main Competitors:
  • Cloudflare, Inc. ($NET) (Global Network, CDN, DDoS Protection, WAF, Zero Trust, Workers), Cloudflare is a direct and aggressive competitor across Akamai's core offerings, including content delivery network (CDN) services, comprehensive cloud security solutions (DDoS protection, WAF, bot management, Zero Trust), and edge computing platforms (Cloudflare Workers). They often compete on price, ease of use, and developer-centric features, targeting a broad range of customers from small businesses to large enterprises.
  • Amazon Web Services (AWS) ($AMZN) (Amazon CloudFront, AWS WAF, AWS Shield, Lambda@Edge), AWS competes with Akamai through its suite of cloud services, particularly Amazon CloudFront for content delivery, AWS WAF and Shield for web application and DDoS security, and Lambda@Edge for edge computing. While AWS is a broader cloud provider, its integrated services offer a compelling alternative for customers already within the AWS ecosystem looking for a unified cloud infrastructure and edge solution.
  • Fastly, Inc. ($FSLY) (Edge Cloud Platform, CDN, Compute@Edge), Fastly is a pure-play edge cloud platform that directly competes with Akamai in high-performance content delivery, real-time edge computing (Compute@Edge), and application acceleration. Fastly often targets developers and enterprises seeking highly programmable and real-time control over their edge infrastructure, emphasizing speed, flexibility, and a developer-first approach.
  • Zscaler, Inc. ($ZS) (Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA)), Zscaler is a leading competitor in the cloud security space, particularly for Zero Trust Network Access (ZTNA) and Secure Access Service Edge (SASE) solutions. They compete with Akamai's growing enterprise security offerings by providing secure access to applications and data from anywhere, focusing on cloud-native security architectures that bypass traditional network perimeters.
Moat:
Akamai Technologies maintains a strong competitive position through its vast global edge network, deep expertise in content delivery and web security, and a comprehensive suite of performance optimization and enterprise security solutions. Its primary competitors include hyperscale cloud providers like AWS, Google Cloud, and Microsoft Azure, which offer integrated CDN and security services as part of their broader cloud ecosystems. Pure-play edge cloud platforms such as Cloudflare and Fastly directly challenge Akamai on performance, developer experience, and advanced edge computing capabilities. Additionally, specialized cloud security vendors like Zscaler and Imperva compete in specific segments of Akamai's growing enterprise security portfolio, particularly in areas like Zero Trust and application security. Akamai's moat lies in its scale, reliability, and long-standing relationships with large enterprises, though it faces continuous pressure to innovate and remain competitive on price and features against a diverse set of agile competitors.
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2012-02-06 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 
                                                                                         
      revenues
    1,073,610,000 1,094,912,000 1,054,630,000 1,043,494,000 1,015,139,000 1,019,939,000 1,004,679,000 979,580,000 986,970,000 995,017,000 965,484,000 935,721,000 915,698,000 927,779,000 881,896,000 903,332,000 903,647,000 905,358,000 860,333,000 852,824,000 842,708,000 846,287,000 792,845,000 794,715,000 764,302,000 772,123,000 709,912,000 705,074,000 706,508,000 713,363,000 669,628,000 662,759,000 668,724,000 663,452,000 621,399,000 608,908,000 609,237,000 616,124,000 584,065,000 572,135,000 567,725,000 579,159,000 551,030,000 540,723,000 526,536,000 536,295,000 498,042,000 476,035,000 453,502,000 435,980,000 395,790,000 378,106,000 368,046,000 377,872,000 345,321,000 331,306,000 319,448,000  323,740,000 281,856,000 276,989,000 275,953,000 284,688,000 253,551,000 245,318,000 240,029,000 238,305,000 206,500,000 204,600,000 210,368,000 212,554,000 197,347,000 194,004,000 187,019,000 183,238,000 161,240,000 152,654,000 139,274,000 125,703,000 111,495,000      
      yoy
    5.76% 7.35% 4.97% 6.52% 2.85% 2.50% 4.06% 4.69% 7.78% 7.25% 9.48% 3.59% 1.33% 2.48% 2.51% 5.92% 7.23% 6.98% 8.51% 7.31% 10.26% 9.61% 11.68% 12.71% 8.18% 8.24% 6.02% 6.38% 5.65% 7.52% 7.76% 8.84% 9.76% 7.68% 6.39% 6.43% 7.31% 6.38% 6.00% 5.81% 7.82% 7.99% 10.64% 13.59% 16.10% 23.01% 25.83% 25.90% 23.22% 15.38% 14.62% 14.13% 15.21%  6.67% 17.54% 15.33%  13.72% 11.16% 12.91% 14.97% 19.46% 22.78% 19.90% 14.10% 12.12% 4.64% 5.46% 12.48% 16.00% 22.39% 27.09% 34.28% 45.77% 44.62%          
      qoq
    -1.95% 3.82% 1.07% 2.79% -0.47% 1.52% 2.56% -0.75% -0.81% 3.06% 3.18% 2.19% -1.30% 5.20% -2.37% -0.03% -0.19% 5.23% 0.88% 1.20% -0.42% 6.74% -0.24% 3.98% -1.01% 8.76% 0.69% -0.20% -0.96% 6.53% 1.04% -0.89% 0.79% 6.77% 2.05% -0.05% -1.12% 5.49% 2.09% 0.78% -1.97% 5.10% 1.91% 2.69% -1.82% 7.68% 4.62% 4.97% 4.02% 10.15% 4.68% 2.73% -2.60% 9.43% 4.23% 3.71%   14.86% 1.76% 0.38% -3.07% 12.28% 3.36% 2.20% 0.72% 15.40% 0.93% -2.74% -1.03% 7.71% 1.72% 3.73% 2.06% 13.64% 5.62% 9.61% 10.80% 12.74%       
      costs and operating expenses:
                                                                                         
      cost of revenues
    471,299,000 452,501,000 429,532,000 426,535,000 418,945,000 414,356,000 408,806,000 402,888,000 394,743,000 393,397,000 383,075,000 373,275,000 361,316,000 357,968,000 346,450,000 346,649,000 332,752,000 325,403,000 316,866,000 320,000,000 306,687,000 303,847,000 283,439,000 276,804,000 268,582,000 257,750,000 246,938,000 242,193,000 240,743,000 243,927,000 239,246,000 235,487,000 234,825,000 229,937,000 225,468,000 214,650,000 205,703,000 203,475,000 204,467,000 206,323,000 194,736,000 193,212,000 183,204,000 179,910,000 169,294,000 163,201,000 158,812,000 149,318,000 139,612,000 133,951,000 132,039,000 124,705,000 120,392,000 111,893,000 109,995,000 107,457,000 102,566,000  102,544,000 93,284,000 89,647,000 89,068,000 86,277,000 77,812,000 71,840,000 67,474,000 67,580,000 61,987,000 60,009,000 60,362,000 60,688,000 56,659,000 53,688,000 51,575,000 49,394,000 43,811,000 39,759,000 34,480,000 28,605,000 24,984,000 21,195,000 19,316,000 16,084,000 15,295,000 12,752,000 
      research and development
    141,576,000 139,453,000 124,720,000 125,838,000 123,549,000 120,245,000 120,347,000 113,352,000 116,932,000 109,202,000 105,942,000 99,041,000 91,863,000 105,382,000 94,047,000 92,070,000 99,935,000 93,173,000 82,899,000 77,255,000 82,045,000 67,228,000 66,773,000 64,090,000 71,224,000 68,898,000 64,887,000 61,439,000 66,141,000 60,342,000 61,049,000 59,709,000 65,065,000 59,673,000 57,226,000 53,373,000 52,162,000 46,755,000 42,341,000 37,690,000 40,842,000 37,674,000 38,396,000 36,693,000 35,828,000 32,417,000 32,583,000 32,052,000 28,234,000 26,520,000 24,857,000 20,597,000 21,905,000 20,371,000 19,351,000 17,542,000 17,480,000  15,191,000 13,542,000 11,006,000 12,594,000 13,775,000 14,235,000 13,577,000 13,179,000 12,520,000 10,904,000 9,378,000 10,856,000 10,477,000 9,943,000 9,519,000 9,304,000 10,466,000 11,408,000 11,663,000 10,604,000 9,141,000 8,862,000 8,373,000 6,726,000 4,982,000 4,953,000 4,507,000 
      sales and marketing
    157,062,000 149,065,000 144,867,000 146,239,000 134,131,000 144,621,000 138,551,000 139,039,000 134,570,000 135,256,000 132,309,000 136,554,000 129,107,000 129,090,000 123,935,000 126,665,000 122,719,000 125,205,000 108,514,000 111,894,000 116,354,000 140,401,000 122,749,000 123,469,000 123,786,000 140,243,000 122,258,000 135,106,000 126,276,000 137,797,000 125,323,000 131,680,000 122,553,000 140,414,000 120,220,000 119,432,000 113,566,000 118,907,000 102,626,000 103,223,000 102,211,000 118,582,000 107,426,000 111,501,000 103,479,000 110,293,000 96,215,000 91,462,000 81,065,000 82,054,000 67,811,000 67,825,000 62,690,000 85,308,000 75,924,000 75,882,000 67,290,000  66,609,000 54,520,000 52,837,000 53,365,000 66,230,000 55,603,000 55,203,000 49,668,000 51,608,000 44,106,000 41,437,000 42,270,000 45,206,000 42,027,000 41,188,000 35,944,000 36,397,000 36,671,000 37,739,000 36,749,000 34,258,000 29,416,000      
      general and administrative
    163,809,000 176,490,000 161,719,000 162,597,000 155,933,000 155,544,000 159,957,000 153,854,000 152,430,000 155,575,000 147,326,000 151,811,000 146,139,000 150,300,000 139,425,000 141,219,000 153,262,000 147,749,000 134,265,000 134,295,000 136,715,000 162,453,000 128,365,000 129,709,000 127,361,000 149,926,000 123,216,000 120,116,000 122,835,000 129,565,000 119,911,000 170,206,000 154,385,000 146,115,000 124,523,000 123,518,000 115,009,000 116,775,000 113,320,000 107,538,000 102,283,000 99,978,000 99,543,000 99,152,000 89,592,000 85,899,000 81,905,000 81,880,000 76,161,000 71,853,000 66,634,000 61,351,000 55,380,000 58,819,000 54,511,000 57,997,000 55,706,000  51,016,000 50,834,000 45,975,000 43,901,000 41,793,000 42,729,000 43,707,000 39,550,000 40,233,000 34,655,000 35,144,000 36,068,000 35,183,000 33,776,000 33,803,000 33,266,000 33,100,000 30,744,000 29,779,000 27,478,000 25,249,000 24,529,000 21,870,000 18,543,000 15,266,000 14,568,000 11,341,000 
      amortization of acquired intangible assets
    25,187,000 27,925,000 27,783,000 27,721,000 27,637,000 25,614,000 24,368,000 21,076,000 21,023,000 16,833,000 18,108,000 15,898,000 15,912,000 16,993,000 17,374,000 16,972,000 13,644,000 12,573,000 11,959,000 12,060,000 11,427,000 10,894,000 10,340,000 10,381,000 10,434,000 9,710,000 9,624,000 9,648,000 9,599,000 8,292,000 8,294,000 8,294,000 8,431,000 7,829,000 7,753,000 7,753,000 7,569,000 6,617,000 6,598,000 6,711,000 6,716,000 6,783,000 6,752,000 6,752,000 6,780,000 8,403,000 8,403,000 8,403,000 6,848,000 4,894,000 4,859,000 5,734,000 6,060,000                                 
      restructuring charge
    183,000   3,103,000 361,000 11,499,000 82,013,000 1,385,000 544,000 -32,000 2,595,000 9,357,000 44,723,000 571,000 227,000 4,715,000 8,016,000 5,170,000 565,000  7,116,000 26,847,000 21,000  10,585,000                           391,000 431,000 392,000   60,000  4,728,000 158,000          454,000                
      total costs and operating expenses
    959,116,000 1,000,036,000 888,606,000 892,033,000 860,556,000 871,879,000 934,042,000 831,594,000 820,242,000 810,231,000 789,355,000 785,936,000 789,060,000 760,304,000 721,458,000 728,290,000 730,328,000 709,273,000 655,068,000 653,390,000 660,344,000 711,670,000 611,687,000 604,286,000 611,972,000 636,801,000 566,623,000 569,292,000 571,983,000 593,075,000 553,091,000 605,642,000 600,167,000 635,549,000 535,522,000 521,697,000 494,009,000 492,594,000 472,300,000 461,955,000 453,606,000 456,479,000 435,341,000 434,463,000 405,015,000 400,213,000 377,803,000 363,684,000 332,655,000 320,224,000 296,269,000 280,603,000 266,858,000 194,331,500 265,162,000 264,295,000 247,869,000  155,871,250 216,523,000 203,757,000 203,205,000 139,241,750 194,509,000 188,479,000 173,979,000 115,052,500 155,755,000 150,206,000 154,249,000 105,236,500 145,578,000 141,689,000 133,679,000 89,821,500 125,469,000 121,694,000 112,123,000 61,566,500 89,734,000      
      income from operations
    114,494,000 94,876,000 166,024,000 151,461,000 154,583,000 148,060,000 70,637,000 147,986,000 166,728,000 184,786,000 176,129,000 149,785,000 126,638,000 167,475,000 160,438,000 175,042,000 173,319,000 196,085,000 205,265,000 199,434,000 182,364,000 134,617,000 181,158,000 190,429,000 152,330,000 135,322,000 143,289,000 135,782,000 134,525,000 120,288,000 116,537,000 57,117,000 68,557,000 27,903,000 85,877,000 87,211,000 115,228,000 123,530,000 111,765,000 110,180,000 114,119,000 122,680,000 115,689,000 106,260,000 121,521,000 136,082,000 120,239,000 112,351,000 120,847,000 115,756,000 99,521,000 97,503,000 101,188,000 95,738,000 80,159,000 67,011,000 71,579,000  79,336,000 65,333,000 73,232,000 72,748,000 72,346,000 59,042,000 56,839,000 66,050,000 62,222,000 50,745,000 54,394,000 56,119,000 54,840,000 51,769,000 52,315,000 53,340,000 51,046,000 35,771,000 30,960,000 27,151,000 26,403,000 21,761,000 17,293,000 17,649,000 21,064,000 18,798,000 17,166,000 
      yoy
    -25.93% -35.92% 135.04% 2.35% -7.28% -19.87% -59.89% -1.20% 31.66% 10.34% 9.78% -14.43% -26.93% -14.59% -21.84% -12.23% -4.96% 45.66% 13.31% 4.73% 19.72% -0.52% 26.43% 40.25% 13.24% 12.50% 22.96% 137.73% 96.22% 331.09% 35.70% -34.51% -40.50% -77.41% -23.16% -20.85% 0.97% 0.69% -3.39% 3.69% -6.09% -9.85% -3.78% -5.42% 0.56% 17.56% 20.82% 15.23% 19.43% 20.91% 24.15% 45.50% 41.37%  1.04% 2.57% -2.26%  9.66% 10.66% 28.84% 10.14% 16.27% 16.35% 4.49% 17.70% 13.46% -1.98% 3.97% 5.21% 7.43% 44.72% 68.98% 96.46% 93.33% 64.38% 79.03% 53.84% 25.35% 15.76% 0.74%     
      qoq
    20.68% -42.85% 9.62% -2.02% 4.41% 109.61% -52.27% -11.24% -9.77% 4.92% 17.59% 18.28% -24.38% 4.39% -8.34% 0.99% -11.61% -4.47% 2.92% 9.36% 35.47% -25.69% -4.87% 25.01% 12.57% -5.56% 5.53% 0.93% 11.84% 3.22% 104.03% -16.69% 145.70% -67.51% -1.53% -24.31% -6.72% 10.53% 1.44% -3.45% -6.98% 6.04% 8.87% -12.56% -10.70% 13.18% 7.02% -7.03% 4.40% 16.31% 2.07% -3.64% 5.69% 19.44% 19.62% -6.38%   21.43% -10.79% 0.67% 0.56% 22.53% 3.88% -13.95% 6.15% 22.62% -6.71% -3.07% 2.33% 5.93% -1.04% -1.92% 4.49% 42.70% 15.54% 14.03% 2.83% 21.33% 25.84% -2.02% -16.21% 12.05% 9.51%  
      operating margin %
    10.66% 8.67% 15.74% 14.51% 15.23% 14.52% 7.03% 15.11% 16.89% 18.57% 18.24% 16.01% 13.83% 18.05% 18.19% 19.38% 19.18% 21.66% 23.86% 23.39% 21.64% 15.91% 22.85% 23.96% 19.93% 17.53% 20.18% 19.26% 19.04% 16.86% 17.40% 8.62% 10.25% 4.21% 13.82% 14.32% 18.91% 20.05% 19.14% 19.26% 20.10% 21.18% 21.00% 19.65% 23.08% 25.37% 24.14% 23.60% 26.65% 26.55% 25.14% 25.79% 27.49% 25.34% 23.21% 20.23% 22.41%  24.51% 23.18% 26.44% 26.36% 25.41% 23.29% 23.17% 27.52% 26.11% 24.57% 26.59% 26.68% 25.80% 26.23% 26.97% 28.52% 27.86% 22.18% 20.28% 19.49% 21.00% 19.52% Infinity% Infinity% Infinity% Infinity% Infinity% 
      interest and marketable securities income
    17,547,000 18,256,000 18,893,000 14,129,000 19,530,000 22,746,000 23,065,000 26,628,000 27,841,000 23,981,000 11,412,000 4,509,000 5,292,000 5,018,000 782,000 -2,331,000 -211,000                                                                     
      interest expense
    -8,257,000 -7,893,000 -7,915,000 -8,201,000 -6,750,000 -6,735,000 -6,735,000 -6,829,000 -6,818,000 -6,884,000 -4,987,000 -3,157,000 -2,681,000 -2,684,000 -2,785,000 -2,932,000 -2,695,000 -18,317,000 -18,144,000 -18,037,000 -17,834,000 -17,342,000 -17,324,000 -17,249,000 -17,205,000 -16,675,000 -12,127,000 -8,446,000 -12,116,000 -14,582,000 -14,566,000 -9,204,000 -4,850,000 -4,850,000 -4,746,000 -4,646,000 -4,597,000 -4,680,000 -4,666,000 -4,639,000 -4,653,000 -4,641,000 -4,630,000 -4,678,000 -4,576,000 -4,524,000 -4,482,000 -4,516,000 -1,941,000              -148,000 -222,000 -618,000 -709,000 -709,000 -710,000 -710,000 -710,000 -721,000 -684,000 -710,000 -710,000 -772,000 -771,000 -772,000 -772,000 -770,000 -856,000 -773,000 -772,000 -762,000 -1,383,000 -1,574,000 
      other income
    -1,786,000   -5,451,000 6,020,000    511,000   -1,130,000  -1,409,000 -275,000 816,000  -222,000 3,635,000      -4,108,000    511,000 59,000 -459,000 -2,769,000 21,000 473,000 535,000 563,000  2,784,000 778,000 415,000  -425,500 204,000     -899,000  -395,000 -305,000 341,000  200,000 -241,000 1,131,000     -107,000  -1,149,000 -1,366,000 122,000 -75,000 -496,000 -659,000 184,000 1,134,000 801,000 154,000 -970,000 476,000 30,000 1,273,000 -572,000 -204,000 357,000 -448,000 475,000 186,000 205,000 -63,000 77,000 
      income before provision for income taxes
    121,998,000 103,919,000 173,165,000 151,938,000 173,383,000 158,109,000 73,806,000 166,836,000 188,262,000 196,241,000 179,393,000 150,007,000 126,886,000 168,400,000 158,160,000 170,595,000 160,848,000 180,980,000 193,628,000 185,322,000 168,291,000 128,960,000 167,983,000 181,079,000 138,060,000 129,440,000 138,318,000 133,168,000 131,555,000 113,073,000 110,770,000 51,553,000 67,693,000 28,013,000 86,129,000 87,409,000 114,571,000 125,814,000 111,686,000 109,349,000 112,597,000 120,475,000 113,986,000 102,518,000 119,645,000 133,857,000 117,579,000 108,676,000 119,664,000 116,895,000 100,674,000 99,321,000 102,664,000 97,528,000 81,511,000 69,768,000 72,784,000  88,154,000 68,147,000 76,221,000 74,673,000 73,985,000 60,312,000 59,438,000 68,637,000 64,569,000 52,893,000 58,032,000 61,738,000 60,073,000 56,918,000 56,189,000 61,355,000 57,940,000 42,956,000 35,631,000 31,678,000 31,330,000 25,283,000 21,106,000 20,750,000 22,552,000 16,771,000 16,473,000 
      provision for income taxes
    15,679,000 -18,847,000 -32,995,000 -48,320,000 -50,212,000 -18,204,000 -15,899,000 -35,148,000 -12,844,000 -35,076,000 -20,326,000 -21,191,000 -29,780,000 8,418,000 -50,006,000 -51,058,000 -34,050,000 -19,016,000 -13,648,000 -18,009,000 -11,898,000   -18,671,000 -14,292,000   19,253,000 24,425,000 19,058,000 3,187,000 8,492,000 13,979,000 8,906,000 25,617,000 29,637,000 33,641,000 34,175,000 35,686,000 35,714,000 37,739,000 32,055,000 25,946,000 35,318,000 41,899,000 36,750,000 26,424,000 35,790,000 46,864,000 36,546,000 20,918,000 37,426,000 31,177,000 29,236,000 33,280,000 25,529,000 29,557,000  28,073,000 25,862,000 28,300,000 24,056,000 21,475,000 20,603,000 21,315,000 27,759,000 24,489,000 20,148,000 22,025,000 24,657,000 19,540,000 23,558,000 21,855,000 24,444,000 22,062,000 18,692,000 13,985,000 12,499,000 10,707,000 11,264,000 9,842,000 9,255,000 -3,207,000 -255,489,000 573,000 
      net income
    106,319,000 85,072,000 140,170,000 103,618,000 123,171,000 139,905,000 57,907,000 131,688,000 175,418,000 161,165,000 160,542,000 128,816,000 97,106,000 176,818,000 108,154,000 119,537,000 119,163,000 160,534,000 178,916,000 156,497,000 155,695,000 113,370,000 158,623,000 161,915,000 123,146,000 119,100,000 137,890,000 113,915,000 107,130,000 94,015,000 107,583,000 43,061,000 53,714,000 19,107,000 60,512,000 57,772,000 80,930,000 91,639,000 76,000,000 73,635,000 74,858,000 88,420,000 88,040,000 67,200,000 77,746,000 97,107,000 91,155,000 72,886,000 72,800,000 80,349,000 79,756,000 61,895,000 71,487,000 68,292,000 48,231,000 44,239,000 43,227,000  60,081,000 42,285,000 47,921,000 50,617,000 52,510,000 39,709,000 38,123,000 40,878,000 40,080,000 32,745,000 36,007,000 37,081,000 40,533,000 33,360,000 34,334,000 36,911,000 35,878,000 24,264,000 21,646,000 19,179,000 20,623,000 14,019,000      
      yoy
    -13.68% -39.19% 142.06% -21.32% -29.78% -13.19% -63.93% 2.23% 80.65% -8.85% 48.44% 7.76% -18.51% 10.14% -39.55% -23.62% -23.46% 41.60% 12.79% -3.35% 26.43% -4.81% 15.04% 42.14% 14.95% 26.68% 28.17% 164.54% 99.45% 392.04% 77.79% -25.46% -33.63% -79.15% -20.38% -21.54% 8.11% 3.64% -13.68% 9.58% -3.71% -8.95% -3.42% -7.80% 6.79% 20.86% 14.29% 17.76% 1.84% 17.66% 65.36% 39.91% 65.38%  -19.72% 4.62% -9.80%  14.42% 6.49% 25.70% 23.82% 31.01% 21.27% 5.88% 10.24% -1.12% -1.84% 4.87% 0.46% 12.97% 37.49% 58.62% 92.46% 73.97% 73.08%          
      qoq
    24.98% -39.31% 35.28% -15.87% -11.96% 141.60% -56.03% -24.93% 8.84% 0.39% 24.63% 32.66% -45.08% 63.49% -9.52% 0.31% -25.77% -10.27% 14.33% 0.52% 37.33% -28.53% -2.03% 31.48% 3.40% -13.63% 21.05% 6.33% 13.95% -12.61% 149.84% -19.83% 181.12% -68.42% 4.74% -28.61% -11.69% 20.58% 3.21% -1.63% -15.34% 0.43% 31.01% -13.56% -19.94% 6.53% 25.07% 0.12% -9.40% 0.74% 28.86% -13.42% 4.68% 41.59% 9.02% 2.34%   42.09% -11.76% -5.33% -3.61% 32.24% 4.16% -6.74% 1.99% 22.40% -9.06% -2.90% -8.52% 21.50% -2.84% -6.98% 2.88% 47.87% 12.09% 12.86% -7.00% 47.11%       
      net income margin %
    9.90% 7.77% 13.29% 9.93% 12.13% 13.72% 5.76% 13.44% 17.77% 16.20% 16.63% 13.77% 10.60% 19.06% 12.26% 13.23% 13.19% 17.73% 20.80% 18.35% 18.48% 13.40% 20.01% 20.37% 16.11% 15.43% 19.42% 16.16% 15.16% 13.18% 16.07% 6.50% 8.03% 2.88% 9.74% 9.49% 13.28% 14.87% 13.01% 12.87% 13.19% 15.27% 15.98% 12.43% 14.77% 18.11% 18.30% 15.31% 16.05% 18.43% 20.15% 16.37% 19.42% 18.07% 13.97% 13.35% 13.53%  18.56% 15.00% 17.30% 18.34% 18.44% 15.66% 15.54% 17.03% 16.82% 15.86% 17.60% 17.63% 19.07% 16.90% 17.70% 19.74% 19.58% 15.05% 14.18% 13.77% 16.41% 12.57% NaN% NaN% NaN% NaN% NaN% 
      net income per share
                                                                                         
      basic
    0.73 0.59 0.98 0.72 0.83 0.94 0.38 0.86 1.16 1.06 1.06 0.85 0.62 1.12 0.68 0.75 0.74 1.1 0.96 0.95 0.7 0.97 0.76 0.74 0.85 0.7 0.66 0.57 0.65 0.25 0.32 0.11 0.35 0.33 0.47 0.53 0.44 0.42 0.42 0.5 0.49 0.38 0.44 0.54 0.51 0.41 0.41 0.45 0.45 0.35 400 390 270 250 240  330 230 260 270 290 220 220 240 230 190 210 220 240 200 210 220 220 150 130 120 130 90 70 70 0.12 1.96 0.12 
      diluted
    0.71 0.57 0.97 0.71 0.82 0.91 0.38 0.86 1.11 1.02 1.04 0.84 0.62 1.11 0.68 0.74 0.73 0.97 1.08 0.94 0.94 0.68 0.95 0.98 0.75 0.72 0.84 0.69 0.65 0.56 0.64 0.25 0.31 0.11 0.35 0.33 0.46 0.52 0.43 0.42 0.42 0.49 0.49 0.37 0.43 0.53 0.5 0.4 0.4 0.44 0.44 0.34 390 370 270 240 240  330 230 250 260 270 210 200 220 210 180 190 200 230 180 190 200 200 130 120 110 120 80 70 70 0.11 1.71 0.11 
      shares used in per share calculations:
                                                                                         
      basic
    145,270 -393 143,577 144,757 149,052 -384 151,435 152,265 151,628 -510 151,359 152,064 155,637 -660 158,715 160,038 160,494 -302 162,767 163,074 163,061 103 162,757 162,413 161,992 -323 162,445 163,407 163,236 -1,451 165,924 170,250 170,116 -710 170,976 172,674 173,158 -527 174,429 175,499 176,403 -200 178,547 178,682 178,545 -45 178,186 178,081 178,705 188 178,235 177,891 177,899 -140 177,455 178,547 178,120  -1,649 183,085 186,612 186,849 2,017 181,457 173,317 171,101 -163 171,686 172,561 170,519 390 168,474 167,417 165,959 -163,784,041 165,474,000 164,798,000 161,569,000 -154,597,634 155,739,000 154,702,000 153,819,000 4,042 139,204 130,119 
      diluted
    150,022 -18 144,811 145,249 151,064 -419 153,240 153,588 157,466 542 154,976 153,454 156,135 -1,005 159,068 161,710 163,637 -286 166,318 166,263 165,688 223 166,519 164,768 163,684 -215 164,558 165,019 164,787 -1,544 167,900 172,307 172,004 -660 171,505 173,439 175,171 -310 175,617 176,420 177,539 -227 180,364 180,738 180,825 -92 180,955 180,841 182,038 160 181,922 181,388 181,562 11 181,053 181,817 182,342  -1,533 185,704 190,179 191,383 396 191,271 190,479 189,013 -13 188,273 189,556 188,183 -1,490 187,769 187,641 185,744 -185,026,906 185,106,000 185,601,000 183,157,000 -177,113,233 177,063,000 175,612,000 173,811,000 4,608 160,362 149,986 
      restructuring (benefit) charge
     862,250 -15,000                 -2,114,000    -167,000                                -46,000                              
      other expense
     -1,320,000 -3,837,000   -5,962,000 -13,161,000 -949,000  -1,663,500 -3,161,000  -2,363,000    -9,565,000   -811,000 -817,000 5,415,000 -2,158,000 -1,603,000  -204,750 -752,000 -578,000         -684,000    -189,000   -1,605,000 -301,000 -492,000 -188,000  -881,000    -132,000    -441,000  -332,500 -188,000  -1,035,000                        
      gain from equity method investment
              1,475,000                                                                           
      loss from equity method investment
                    -7,635,000 -1,430,000 -1,064,000 -10,816,000 -698,000 -11,432,000 -559,000 -493,000 -622,000 292,000 -1,388,000                                                           
      interest income
                     3,434,000 2,872,000 4,736,000 4,578,000 6,270,000 6,307,000 9,502,000 7,043,000 11,402,000 7,908,000 6,410,000 8,635,000 7,308,000 9,258,000 6,409,000 3,965,000 4,487,000 4,463,000 4,281,000 4,624,000 4,180,000 3,809,000 3,393,000 3,320,000 2,935,000 2,723,000 2,541,000 3,001,000 2,291,000 2,010,000 1,740,000 1,639,000 1,534,000 1,458,000 1,446,000 1,556,000 1,589,000 1,568,000 1,622,000 1,633,000  1,995,000 2,703,000 3,021,000 2,951,000 2,842,000 2,809,000 3,262,000 3,250,000 3,410,000 3,434,000 4,059,000 4,740,000 5,583,000 5,678,000 5,490,000 8,041,000 7,613,000 6,684,000 6,015,000 5,504,000 5,338,000 4,826,000 4,109,000 3,430,000 2,045,000 816,000 804,000 
      benefit for income taxes
                         -10,441,000 -8,801,000   -10,679,500 960,000                                                           
      restructuring (benefit) charges
                             1,719,750 -300,000   3,610,500 -732,000                                                       
      restructuring charges
                               790,000 6,389,000   266,000 14,908,000 51,581,000 332,000 2,971,000  65,000 2,948,000 470,000 6,818,000 250,000 20,000 455,000 42,000   569,000 735,000 952,000 69,000                                   
      restructuring (benefits) charges
                                                 297,250 -115,000                                       
      gain on investments
                                                       31,000 52,000 1,000 25,000 4,000 13,000  -632,000 299,000 75,000 9,000 99,000 49,000 127,000 121,000 142,000 83,000 105,000 455,000 -430,000 1,000 64,000 208,000 23,000 1,000   2,000  2,000 257,000    
      net income per weighted-average share:
                                                                                         
      basic
    0.73 0.59 0.98 0.72 0.83 0.94 0.38 0.86 1.16 1.06 1.06 0.85 0.62 1.12 0.68 0.75 0.74 1.1 0.96 0.95 0.7 0.97 0.76 0.74 0.85 0.7 0.66 0.57 0.65 0.25 0.32 0.11 0.35 0.33 0.47 0.53 0.44 0.42 0.42 0.5 0.49 0.38 0.44 0.54 0.51 0.41 0.41 0.45 0.45 0.35 400 390 270 250 240  330 230 260 270 290 220 220 240 230 190 210 220 240 200 210 220 220 150 130 120 130 90 70 70 0.12 1.96 0.12 
      diluted
    0.71 0.57 0.97 0.71 0.82 0.91 0.38 0.86 1.11 1.02 1.04 0.84 0.62 1.11 0.68 0.74 0.73 0.97 1.08 0.94 0.94 0.68 0.95 0.98 0.75 0.72 0.84 0.69 0.65 0.56 0.64 0.25 0.31 0.11 0.35 0.33 0.46 0.52 0.43 0.42 0.42 0.49 0.49 0.37 0.43 0.53 0.5 0.4 0.4 0.44 0.44 0.34 390 370 270 240 240  330 230 250 260 270 210 200 220 210 180 190 200 230 180 190 200 200 130 120 110 120 80 70 70 0.11 1.71 0.11 
      amortization of other intangible assets
                                                         5,351,000 5,381,000 5,463,000 4,767,000  4,316,000 4,185,000 4,292,000 4,277,000 4,267,000 4,130,000 4,152,000 4,108,000 4,142,000 4,103,000 4,238,000 4,239,000 3,651,000 3,173,000 3,491,000 3,590,000 2,835,000 2,835,000 2,932,000 2,812,000 2,047,000 1,943,000 2,198,000 2,296,000 2,296,000 2,296,000 520,000 
      loss on early extinguishment of debt
                                                                  -5,000  -294,000           -2,000  -1,000      -1,370,000  
      restructuring benefit
                                                                                -178,000         
      shares used in per weighted-average share calculations:
                                                                                         
      basic
    145,270 -393 143,577 144,757 149,052 -384 151,435 152,265 151,628 -510 151,359 152,064 155,637 -660 158,715 160,038 160,494 -302 162,767 163,074 163,061 103 162,757 162,413 161,992 -323 162,445 163,407 163,236 -1,451 165,924 170,250 170,116 -710 170,976 172,674 173,158 -527 174,429 175,499 176,403 -200 178,547 178,682 178,545 -45 178,186 178,081 178,705 188 178,235 177,891 177,899 -140 177,455 178,547 178,120  -1,649 183,085 186,612 186,849 2,017 181,457 173,317 171,101 -163 171,686 172,561 170,519 390 168,474 167,417 165,959 -163,784,041 165,474,000 164,798,000 161,569,000 -154,597,634 155,739,000 154,702,000 153,819,000 4,042 139,204 130,119 
      diluted
    150,022 -18 144,811 145,249 151,064 -419 153,240 153,588 157,466 542 154,976 153,454 156,135 -1,005 159,068 161,710 163,637 -286 166,318 166,263 165,688 223 166,519 164,768 163,684 -215 164,558 165,019 164,787 -1,544 167,900 172,307 172,004 -660 171,505 173,439 175,171 -310 175,617 176,420 177,539 -227 180,364 180,738 180,825 -92 180,955 180,841 182,038 160 181,922 181,388 181,562 11 181,053 181,817 182,342  -1,533 185,704 190,179 191,383 396 191,271 190,479 189,013 -13 188,273 189,556 188,183 -1,490 187,769 187,641 185,744 -185,026,906 185,106,000 185,601,000 183,157,000 -177,113,233 177,063,000 175,612,000 173,811,000 4,608 160,362 149,986 
      shares used in per weighted average share calculations:
                                                                                         
      basic
    145,270 -393 143,577 144,757 149,052 -384 151,435 152,265 151,628 -510 151,359 152,064 155,637 -660 158,715 160,038 160,494 -302 162,767 163,074 163,061 103 162,757 162,413 161,992 -323 162,445 163,407 163,236 -1,451 165,924 170,250 170,116 -710 170,976 172,674 173,158 -527 174,429 175,499 176,403 -200 178,547 178,682 178,545 -45 178,186 178,081 178,705 188 178,235 177,891 177,899 -140 177,455 178,547 178,120  -1,649 183,085 186,612 186,849 2,017 181,457 173,317 171,101 -163 171,686 172,561 170,519 390 168,474 167,417 165,959 -163,784,041 165,474,000 164,798,000 161,569,000 -154,597,634 155,739,000 154,702,000 153,819,000 4,042 139,204 130,119 
      diluted
    150,022 -18 144,811 145,249 151,064 -419 153,240 153,588 157,466 542 154,976 153,454 156,135 -1,005 159,068 161,710 163,637 -286 166,318 166,263 165,688 223 166,519 164,768 163,684 -215 164,558 165,019 164,787 -1,544 167,900 172,307 172,004 -660 171,505 173,439 175,171 -310 175,617 176,420 177,539 -227 180,364 180,738 180,825 -92 180,955 180,841 182,038 160 181,922 181,388 181,562 11 181,053 181,817 182,342  -1,533 185,704 190,179 191,383 396 191,271 190,479 189,013 -13 188,273 189,556 188,183 -1,490 187,769 187,641 185,744 -185,026,906 185,106,000 185,601,000 183,157,000 -177,113,233 177,063,000 175,612,000 173,811,000 4,608 160,362 149,986 
      revenues:
                                                                                         
      services
                                                                                  125,249,000 111,147,000 100,279,000 90,799,000 82,610,000 75,602,000 63,676,000 
      software and software-related
                                                                                  454,000 348,000 370,000 26,000 47,000 111,000 973,000 
      loss on investments
                                                                                      -6,750 -27,000  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 
                                                                                          
        assets
                                                                                          
        current assets:
                                                                                          
        cash and cash equivalents
      622,383,000 930,231,000 927,933,000 850,302,000 1,097,026,000 517,707,000 569,749,000 448,042,000 467,717,000 489,468,000 459,907,000 298,612,000 298,800,000 542,337,000 457,816,000 426,710,000 377,811,000 536,725,000 1,264,590,000 581,068,000 456,799,000 352,917,000 742,521,000 572,288,000 384,103,000 393,745,000 738,462,000 515,896,000 688,698,000 1,036,455,000 705,407,000 977,488,000 363,703,000 313,382,000 368,152,000 352,501,000 522,319,000 324,169,000 381,803,000 326,644,000 312,912,000 289,473,000 256,471,000 257,448,000 332,557,000 238,650,000 214,339,000 254,165,000 248,726,000 333,891,000 235,015,000 204,865,000 165,275,000 201,989,000 182,650,000 182,996,000 144,724,000 559,197,000 355,599,000 205,629,000 217,174,000 231,866,000 197,567,000 120,506,000 173,224,000 181,305,000 202,802,000 321,083,000 215,210,000 156,074,000 142,022,000 165,417,000 208,495,000 145,078,000 152,804,000 100,162,000 124,245,000 80,595,000 99,123,000 73,502,000 65,022,000  34,084,000 51,028,000 
        marketable securities
      308,062,000 256,302,000 190,807,000 116,322,000 224,204,000 1,078,876,000 1,129,456,000 1,189,232,000 1,206,971,000 374,971,000 479,355,000 491,947,000 453,113,000 562,979,000 406,332,000 263,979,000 129,058,000 541,470,000 652,695,000 835,420,000 831,260,000 745,156,000 701,515,000 800,321,000 865,168,000 1,143,249,000 831,749,000 526,596,000 429,932,000 855,650,000 1,096,233,000 879,483,000 447,850,000 398,554,000 383,849,000 330,620,000 322,750,000 512,849,000 529,416,000 542,062,000 524,958,000 460,088,000 411,382,000 386,055,000 380,728,000 519,642,000 496,573,000 502,608,000 449,404,000 340,005,000 331,300,000 326,077,000 347,951,000 235,592,000 282,579,000 313,564,000 259,818,000 290,029,000 331,967,000 291,647,000 346,395,000 375,005,000 410,029,000 383,682,000 431,898,000 385,436,000 379,268,000 298,943,000 238,794,000 174,557,000 159,393,000 126,280,000 113,771,000 401,091,000 284,057,000 256,321,000 217,947,000 189,246,000 178,584,000 108,221,000 56,478,000  19,457,000 23,101,000 
        accounts receivable
      881,076,000 793,666,000 765,891,000 779,165,000 759,438,000 727,687,000 696,493,000 699,258,000 716,638,000 724,302,000 713,382,000 698,445,000 705,817,000 679,206,000 622,027,000 668,425,000 718,793,000 675,926,000 660,092,000 656,609,000 666,536,000 660,052,000 630,406,000 644,659,000 613,809,000 551,943,000 516,657,000 523,382,000 529,346,000 479,889,000 466,364,000 479,865,000 484,617,000 459,127,000 400,839,000 395,865,000 400,792,000 368,596,000 357,997,000 364,401,000 365,103,000 380,399,000 365,957,000 342,930,000 356,629,000 329,578,000 326,747,000 325,385,000 301,954,000 271,988,000 256,453,000 237,286,000 232,328,000 218,777,000 236,232,000 206,316,000 215,855,000 210,936,000 182,665,000 178,260,000 169,656,000 175,366,000 158,115,000 164,574,000 148,696,000 154,269,000 152,132,000 144,537,000 149,280,000 139,612,000 126,934,000 125,765,000 122,708,000 118,944,000 108,205,000 99,157,000 86,873,000 86,232,000 67,375,000      
        prepaid expenses and other current assets
      319,102,000 306,481,000 282,607,000 288,038,000 294,303,000 253,827,000 238,732,000 233,928,000 233,853,000 216,114,000 214,737,000 229,468,000 239,981,000 185,040,000 209,398,000 207,043,000 238,821,000 166,313,000 184,503,000 180,155,000 206,807,000 171,406,000 168,779,000 175,731,000 151,504,000 142,676,000 167,040,000 178,920,000 170,442,000 163,360,000 161,785,000 147,324,000 163,556,000 137,809,000 142,943,000 159,371,000 152,600,000 104,303,000 117,748,000 132,477,000 127,855,000 123,228,000 115,601,000 119,365,000 130,041,000 128,981,000 90,173,000 88,047,000 89,198,000 62,096,000 67,452,000 70,734,000 65,677,000 51,604,000 45,784,000 47,285,000 52,700,000 55,414,000 47,085,000 47,348,000 55,455,000 48,029,000 76,439,000 73,460,000 44,689,000 31,649,000 37,828,000 33,161,000 30,670,000 27,124,000 28,644,000 30,608,000 23,806,000 23,782,000 25,604,000 23,986,000 23,780,000  14,386,000 13,865,000 13,450,000    
        total current assets
      2,130,623,000 2,286,680,000 2,167,238,000 2,033,827,000 2,374,971,000 2,578,097,000 2,634,430,000 2,570,460,000 2,625,179,000 1,804,855,000 1,867,381,000 1,718,472,000 1,697,711,000 1,969,562,000 1,695,573,000 1,566,157,000 1,464,483,000 1,920,434,000 2,761,880,000 2,253,252,000 2,161,402,000 1,929,531,000 2,243,221,000 2,192,999,000 2,014,584,000 2,231,613,000 2,253,908,000 1,744,794,000 1,818,418,000 2,535,354,000 2,429,789,000 2,484,160,000 1,459,726,000 1,308,872,000 1,295,783,000 1,238,357,000 1,398,461,000 1,309,917,000 1,386,964,000 1,365,584,000 1,330,828,000 1,253,188,000 1,210,985,000 1,151,476,000 1,241,579,000 1,262,555,000 1,152,676,000 1,199,667,000 1,127,300,000 1,029,714,000 910,642,000 859,384,000 831,653,000 728,384,000 753,689,000 756,605,000 679,541,000 1,122,020,000 924,479,000 750,953,000 816,814,000 858,467,000 855,808,000 778,167,000 854,425,000 761,173,000 776,572,000 802,266,000 638,496,000 501,909,000 463,140,000 454,217,000 474,927,000 695,042,000 570,670,000 479,626,000 452,845,000 374,673,000 359,468,000      
        property and equipment
      2,411,721,000 2,333,462,000 2,317,804,000 2,213,629,000 2,110,054,000 1,995,071,000 1,948,799,000 1,911,012,000 1,864,307,000 1,825,944,000 1,786,355,000 1,746,081,000 1,654,608,000 1,540,182,000 1,520,428,000 1,541,875,000 1,579,833,000 1,534,329,000 1,543,301,000 1,538,422,000 1,511,393,000 1,478,272,000 1,383,480,000 1,281,392,000 1,180,550,000 1,152,153,000 1,079,914,000 1,019,407,000 951,259,000 910,618,000 884,483,000 852,950,000 845,118,000 862,535,000 883,754,000 856,039,000 824,724,000 801,017,000 797,923,000 786,835,000 770,197,000 753,180,000 734,540,000 704,571,000 666,093,000 601,591,000 559,194,000 536,637,000 503,601,000 450,287,000 424,605,000 405,653,000 369,555,000 345,091,000 331,218,000 315,866,000 303,518,000 293,043,000 285,476,000 274,377,000 266,968,000 255,929,000 239,508,000 227,888,000 190,211,000 182,404,000 179,826,000 174,742,000 174,651,000 174,483,000 174,469,000 158,067,000 145,962,000 134,546,000 134,185,000 125,777,000 109,547,000 86,623,000 71,923,000 63,243,000 54,939,000  42,529,000 39,308,000 
        operating lease right-of-use assets
      1,665,915,000 1,469,700,000 1,021,166,000 1,063,348,000 977,419,000 1,006,738,000 1,006,132,000 988,521,000 947,049,000 908,634,000 883,686,000 884,687,000 850,282,000 813,372,000 803,404,000 797,313,000 819,880,000 815,754,000 821,033,000 830,022,000 825,944,000 793,945,000 745,089,000 736,465,000 738,176,000 758,450,000 349,155,000 359,128,000 358,554,000                                                        
        acquired intangible assets
      589,355,000 614,542,000 647,480,000 675,217,000 700,717,000 727,585,000 586,247,000 632,984,000 512,554,000 536,143,000 465,203,000 437,257,000 432,233,000 441,716,000 455,030,000 476,707,000 512,188,000 313,225,000 203,596,000 217,519,000 227,436,000 234,724,000 184,478,000 194,951,000 205,486,000 179,431,000 166,407,000 176,031,000 184,879,000 168,348,000 176,640,000 184,934,000 193,228,000 201,259,000 176,288,000 184,041,000 141,894,000 149,463,000 138,870,000 142,668,000 149,379,000 156,095,000 158,978,000 165,730,000 130,532,000 132,412,000 140,815,000 149,218,000 157,621,000 77,429,000 79,803,000 68,562,000 74,297,000                                
        goodwill
      3,202,906,000 3,206,525,000 3,170,123,000 3,170,024,000 3,157,409,000 3,151,077,000 3,154,351,000 3,146,397,000 2,846,535,000 2,850,470,000 2,843,020,000 2,848,467,000 2,781,859,000 2,763,838,000 2,753,369,000 2,763,828,000 2,745,882,000 2,156,254,000 1,680,496,000 1,685,859,000 1,682,093,000 1,674,371,000 1,598,919,000 1,595,304,000 1,594,197,000 1,600,265,000 1,583,479,000 1,586,642,000 1,586,990,000 1,487,404,000 1,488,868,000 1,494,311,000 1,498,906,000 1,498,688,000 1,358,762,000 1,356,623,000 1,229,504,000 1,228,503,000 1,151,216,000 1,150,137,000 1,152,376,000 1,150,244,000 1,135,500,000 1,135,947,000 1,064,149,000 1,051,294,000 1,049,047,000 1,049,047,000 1,050,780,000 757,368,000 751,271,000 729,386,000 729,467,000 731,325,000 721,601,000 709,668,000 709,628,000 452,914,000 452,914,000 452,914,000 452,914,000 452,914,000 452,950,000 452,950,000 441,347,000 441,347,000 441,875,000 441,875,000 441,569,000 441,258,000 361,645,000 361,645,000 361,645,000 361,637,000 367,908,000 374,907,000 361,423,000 239,580,000 97,177,000 98,304,000 98,347,000  98,940,000 97,164,000 
        deferred income tax assets
      627,603,000 622,776,000 619,367,000 597,015,000 454,568,000 483,249,000 431,318,000 428,235,000 430,428,000 418,297,000 405,251,000 337,034,000 334,733,000 337,677,000 285,722,000 292,817,000 265,946,000 168,342,000 136,305,000 99,634,000 103,433,000 106,918,000 97,801,000 61,310,000 80,037,000 76,528,000 39,321,000 19,677,000 30,363,000 34,913,000 23,688,000 44,230,000 44,490,000 51,069,000 18,930,000 7,448,000 7,332,000 8,982,000 21,156,000 2,455,000 3,490,000  61,574,000 45,678,000 41,624,000 45,704,000 24,844,000 29,462,000 38,018,000 21,734,000 20,422,000 20,422,000 20,422,000 20,422,000 6,444,000 6,444,000 6,444,000 6,444,000 7,163,000 28,069,000 28,134,000 28,201,000 13,658,000 35,945,000 55,918,000 8,514,000 4,542,000 4,542,000 4,542,000 4,542,000 6,147,000 6,147,000 6,147,000 6,147,000           
        other assets
      214,959,000 212,730,000 196,095,000 191,826,000 184,032,000 151,376,000 149,769,000 132,980,000 127,531,000 124,340,000 122,395,000 124,756,000 133,208,000 116,522,000 105,317,000 131,689,000 128,855,000 142,287,000 133,790,000 131,610,000 140,646,000 147,567,000 151,347,000 143,542,000 173,776,000 173,062,000 151,134,000 150,511,000 150,865,000 116,067,000 103,284,000 132,373,000 133,166,000 112,829,000 113,688,000 114,750,000 109,015,000 95,953,000 89,815,000 90,811,000 92,120,000 95,844,000 105,898,000 90,039,000 80,814,000 81,747,000 99,182,000 96,142,000 88,443,000 67,536,000 77,928,000 60,288,000 58,775,000 39,811,000 15,365,000 14,314,000 14,460,000 7,924,000 9,210,000 9,540,000 11,425,000 11,153,000 12,185,000 11,622,000 12,216,000 4,416,000 4,531,000 5,068,000 5,315,000 5,592,000 5,964,000 5,503,000 5,527,000 4,520,000 4,697,000 4,918,000 4,900,000 4,256,000 4,569,000 4,786,000 4,729,000  5,008,000 5,621,000 
        total assets
      11,645,752,000 11,479,643,000 10,833,273,000 10,536,135,000 9,982,190,000 10,368,785,000 10,190,457,000 10,087,532,000 9,935,606,000 9,900,037,000 9,582,088,000 8,345,965,000 8,183,333,000 8,303,400,000 8,107,369,000 8,211,054,000 8,303,779,000 8,138,673,000 8,115,475,000 7,920,938,000 7,817,920,000 7,764,130,000 7,514,393,000 7,224,798,000 6,947,956,000 7,006,886,000 6,357,434,000 5,343,236,000 5,182,762,000 5,461,770,000 5,363,887,000 5,604,704,000 4,686,904,000 4,602,844,000 4,509,134,000 4,489,039,000 4,449,995,000 4,373,146,000 4,353,635,000 4,269,722,000 4,183,752,000 4,187,925,000 4,184,809,000 4,131,105,000 3,986,913,000 4,001,546,000 3,854,291,000 3,768,657,000 3,651,492,000 2,957,685,000 2,885,125,000 2,725,270,000 2,646,667,000 2,600,627,000 2,539,454,000 2,445,576,000 2,414,118,000 2,345,501,000 2,301,957,000 2,404,149,000 2,374,799,000 2,352,676,000 2,262,752,000 2,202,998,000 2,116,683,000 2,087,510,000 2,028,671,000 1,988,970,000 1,939,312,000 1,880,951,000 1,800,857,000 1,755,417,000 1,699,177,000 1,656,047,000 1,574,620,000 1,519,975,000 1,466,637,000 1,247,932,000 1,027,695,000   891,499,000   
        liabilities and stockholders’ equity
                                                                                          
        current liabilities:
                                                                                          
        accounts payable
      151,439,000 125,054,000 189,967,000 146,617,000 155,917,000 130,447,000 106,629,000 124,507,000 134,677,000 146,927,000 144,466,000 194,493,000 202,129,000 145,420,000 119,051,000 131,649,000 122,934,000 109,928,000 98,305,000 93,465,000 119,462,000 118,546,000 114,850,000 153,958,000 114,100,000 138,946,000 108,187,000 126,539,000 102,371,000 99,089,000 96,051,000 84,167,000 81,239,000 80,278,000 88,339,000 91,741,000 90,179,000 76,120,000 74,328,000 68,249,000 63,822,000 61,982,000 60,902,000 85,311,000 67,637,000 77,412,000 74,801,000 70,534,000 61,707,000 73,710,000 49,073,000 50,370,000 57,574,000 43,291,000 52,749,000 44,546,000 32,944,000 38,247,000 30,349,000 29,053,000 28,548,000 26,375,000 29,649,000 33,529,000 25,953,000 23,997,000 24,142,000 19,279,000 17,391,000 21,165,000 26,239,000 25,852,000 23,153,000 18,540,000 27,464,000 26,349,000 35,399,000 22,630,000 19,926,000 17,081,000 18,411,000  12,863,000 18,116,000 
        accrued expenses
      286,427,000 319,622,000 308,160,000 272,144,000 265,371,000 370,888,000 288,619,000 283,862,000 291,986,000 352,181,000 329,354,000 269,265,000 256,924,000 367,017,000 329,211,000 306,402,000 342,802,000 411,590,000 376,036,000 289,189,000 309,894,000 380,468,000 369,815,000 263,646,000 265,442,000 334,861,000 304,333,000 250,015,000 238,524,000 328,304,000 305,267,000 253,241,000 253,075,000 283,743,000 267,966,000 222,023,000 218,028,000 238,777,000 291,101,000 234,013,000 197,487,000 216,166,000 215,290,000 205,373,000 144,117,000 204,686,000 173,985,000 158,646,000 130,447,000 150,385,000 171,527,000                        55,108,000 45,584,000 50,051,000 58,083,000 53,396,000 44,179,000 42,891,000  38,119,000 36,814,000 
        deferred revenue
      203,681,000 151,186,000 162,448,000 179,761,000 169,529,000 149,222,000 138,929,000 139,934,000 142,527,000 107,544,000 124,394,000 138,608,000 140,927,000 105,109,000 109,792,000 111,771,000 139,725,000 86,517,000 83,371,000 95,216,000 102,525,000 76,600,000 88,942,000 93,648,000 99,101,000 71,223,000 98,842,000 110,750,000 110,667,000 69,083,000 93,732,000 100,314,000 95,490,000 77,705,000 64,716,000 73,772,000 63,434,000 52,972,000 61,292,000 67,163,000 64,905,000 54,154,000 55,580,000 56,271,000 55,301,000 49,679,000 50,582,000 48,182,000 48,359,000 36,952,000 37,025,000 32,019,000 33,919,000 26,291,000 27,927,000 26,072,000 23,192,000 21,344,000 23,201,000 22,412,000 20,447,000 23,808,000 27,790,000 31,696,000 30,347,000 34,184,000 30,423,000 28,082,000 25,829,000 11,506,000 10,453,000 13,993,000 14,686,000 12,995,000 11,237,000 10,138,000 11,733,000 6,731,000 7,049,000 8,079,000 8,820,000  4,709,000 3,408,000 
        operating lease liabilities
      369,110,000 336,613,000 281,347,000 271,500,000 263,365,000 259,134,000 251,596,000 242,223,000 232,731,000 222,944,000 205,090,000 217,224,000 205,055,000 196,094,000 187,776,000 186,945,000 183,762,000 175,683,000 164,559,000 158,390,000 156,656,000 154,801,000 136,292,000 138,478,000 141,876,000 139,463,000 86,959,000 96,160,000 101,545,000                                                        
        other current liabilities
      25,130,000 35,043,000 8,394,000 10,497,000 12,586,000 32,516,000 48,779,000 7,524,000 7,017,000 6,442,000 7,187,000 21,184,000 31,218,000 5,228,000 7,181,000 5,317,000 5,042,000 6,623,000 9,169,000 11,189,000 26,594,000 27,755,000 7,225,000 7,692,000 9,728,000 8,843,000 4,202,000 7,350,000 16,599,000 27,681,000 20,324,000 23,977,000 32,046,000 22,178,000 9,285,000 11,528,000 10,235,000 6,719,000 4,815,000 7,117,000 7,019,000 138,000 234,000 1,287,000 2,276,000 2,234,000 2,233,000 5,930,000 3,673,000 2,119,000 27,799,000                                  
        total current liabilities
      1,035,787,000 967,518,000 950,316,000 880,519,000 2,016,529,000 2,091,323,000 1,983,023,000 1,945,876,000 808,938,000 836,038,000 810,491,000 860,774,000 836,253,000 818,868,000 753,011,000 817,084,000 869,265,000 790,341,000 731,440,000 647,449,000 715,131,000 758,170,000 717,124,000 657,422,000 630,247,000 693,336,000 602,523,000 590,814,000 569,706,000 1,210,709,000 1,195,938,000 1,136,328,000 1,130,595,000 463,904,000 430,306,000 399,064,000 381,876,000 374,588,000 431,536,000 376,542,000 333,233,000 332,440,000 332,006,000 348,242,000 269,331,000 334,011,000 301,601,000 283,292,000 244,186,000 263,166,000 285,424,000 226,574,000 211,909,000 202,944,000 212,920,000 165,852,000 148,538,000 148,392,000 138,878,000 138,708,000 134,095,000 145,151,000 201,165,000 199,834,000 309,259,000 327,293,000 110,305,000 89,928,000 90,969,000 100,456,000 83,356,000 81,342,000 89,766,000 88,375,000 94,483,000 82,927,000 99,180,000 89,264,000 81,619,000      
        deferred income tax liabilities
      34,840,000 31,089,000 27,154,000 23,378,000 18,151,000 16,066,000 27,387,000 26,442,000 24,977,000 24,622,000 20,935,000 18,839,000 20,439,000 18,400,000 38,146,000 39,367,000 41,131,000 40,974,000 35,333,000 36,124,000 35,115,000 37,458,000 31,946,000 29,556,000 29,049,000 29,187,000 21,797,000 25,099,000 19,396,000 19,624,000 18,827,000 18,236,000 17,675,000 15,510,000 15,984,000 21,762,000 39,902,000 11,652,000 8,963,000 10,248,000 11,706,000 12,888,000 49,925,000 38,833,000 44,580,000 39,299,000 25,099,000 40,385,000 28,445,000 4,737,000                                   
        convertible senior notes
      4,107,607,000    1,149,761,000 1,149,116,000 1,148,471,000 1,147,826,000 3,540,120,000 3,538,229,000 3,536,342,000 2,287,481,000 2,286,369,000 2,285,258,000 2,284,147,000 2,283,037,000 2,281,927,000 1,976,167,000 1,958,558,000 1,941,113,000 1,923,829,000 1,906,707,000 1,889,743,000 1,872,937,000 1,856,287,000     686,552,000 680,564,000 674,629,000  662,913,000 657,131,000 651,400,000 645,719,000 640,087,000 634,504,000 628,970,000 623,485,000 624,288,000 619,365,000 614,484,000 609,647,000 604,851,000 600,098,000 595,385,000 590,714,000                                    
        other liabilities
      147,776,000 147,802,000 151,153,000 139,814,000 134,354,000 130,370,000 111,414,000 106,561,000 106,768,000 106,181,000 102,472,000 104,253,000 109,369,000 105,305,000 95,184,000 86,609,000 77,231,000 68,748,000 80,050,000 81,449,000 84,862,000 89,833,000 81,386,000 82,374,000 82,944,000 90,065,000 106,790,000 135,102,000 126,996,000 160,940,000 123,695,000 143,409,000 145,328,000 142,955,000 128,834,000 125,793,000 119,447,000 118,691,000 105,567,000 99,754,000 97,508,000 93,268,000 93,334,000 79,746,000 77,491,000 74,221,000 75,466,000 72,795,000 71,821,000 57,152,000 53,928,000 47,928,000 47,220,000 49,364,000 64,499,000 63,249,000 62,165,000 38,389,000 38,013,000 33,693,000 26,574,000 26,278,000 25,423,000 27,088,000 23,334,000 18,818,000 17,211,000 14,802,000 13,257,000 10,619,000 10,065,000 9,878,000 9,472,000 7,812,000 6,622,000 5,136,000 4,978,000 3,657,000 3,513,000 3,464,000 3,100,000 3,565,000 9,365,000 3,591,000 
        total liabilities
      6,736,927,000 6,502,272,000 6,101,329,000 6,068,627,000 5,397,629,000 5,490,428,000 5,396,319,000 5,332,856,000 5,301,839,000 5,302,882,000 5,257,884,000 4,056,798,000 4,011,992,000 3,943,213,000 3,874,185,000 3,930,576,000 4,003,257,000 3,608,659,000 3,533,030,000 3,444,281,000 3,496,557,000 3,512,834,000 3,406,776,000 3,320,503,000 3,275,738,000 3,348,928,000 2,855,834,000 1,948,472,000 1,899,545,000 2,269,910,000 2,208,357,000 2,159,426,000 1,300,647,000 1,292,121,000 1,236,479,000 1,201,867,000 1,191,449,000 1,148,776,000 1,184,704,000 1,119,249,000 1,070,170,000 1,067,047,000 1,099,146,000 1,085,793,000 1,005,231,000 1,056,211,000 1,005,911,000 995,913,000 939,347,000 328,254,000 341,995,000 277,397,000 261,890,000 254,873,000 279,516,000 230,943,000 212,930,000 189,251,000 179,946,000 175,834,000 164,611,000 175,071,000 228,605,000 229,910,000 336,234,000 348,788,000 330,225,000 308,079,000 307,970,000 312,181,000 294,724,000 292,820,000 301,558,000 297,495,000 302,823,000 289,674,000 305,319,000 293,239,000 286,000,000      
        commitments and contingencies
                                                                                          
        stockholders’ equity:
                                                                                          
        preferred stock, 0.01 par value...
                                                                                          
        common stock, 0.01 par value...
      1,524,000 1,497,000 1,591,000 1,586,000 1,578,000 1,556,000 1,548,000 1,544,000 1,536,000 1,512,000 1,583,000 1,580,000 1,573,000 1,565,000 1,622,000 1,620,000 1,615,000 1,605,000 1,647,000 1,645,000 1,638,000 1,627,000 1,641,000 1,638,000 1,631,000 1,620,000 1,652,000 1,649,000 1,640,000 1,629,000 1,722,000 1,718,000 1,708,000 1,699,000 1,755,000 1,751,000 1,743,000 1,733,000 1,794,000 1,791,000 1,783,000 1,772,000 1,811,000 1,805,000 1,796,000 1,783,000 1,851,000 1,844,000 1,832,000 1,808,000 2,059,000 2,045,000 2,031,000 2,015,000 2,000,000 1,993,000 1,982,000 1,959,000 1,947,000 1,944,000 1,937,000 1,924,000 1,877,000 1,863,000 1,758,000 1,746,000 1,739,000 1,735,000 1,727,000 1,694,000 1,691,000 1,689,000 1,671,000 1,662,000 1,657,000 1,652,000 1,641,000 1,603,000 1,562,000      
        additional paid-in capital
      2,123,150,000 2,080,487,000 2,819,050,000 2,696,975,000 2,673,892,000 2,618,384,000 2,479,552,000 2,368,225,000 2,230,875,000 2,222,993,000 2,756,910,000 2,751,681,000 2,625,244,000 2,578,603,000 3,104,970,000 3,054,200,000 2,974,529,000 3,340,822,000 3,789,623,000 3,743,743,000 3,664,568,000 3,664,820,000 3,781,228,000 3,734,787,000 3,658,990,000 3,653,486,000 3,919,264,000 3,760,840,000 3,686,337,000 3,670,033,000 4,352,857,000 4,303,531,000 4,098,218,000 4,073,362,000 4,363,876,000 4,317,583,000 4,254,982,000 4,239,588,000 4,547,834,000 4,508,376,000 4,451,319,000 4,437,420,000 4,685,078,000 4,647,275,000 4,587,000,000 4,559,430,000 4,777,961,000 4,742,423,000 4,687,512,000 4,561,929,000 5,295,939,000 5,256,348,000 5,207,285,000 5,195,543,000 5,146,092,000 5,117,093,000 5,076,885,000 5,068,235,000 5,025,797,000 5,009,667,000 4,991,764,000 4,970,278,000 4,852,133,000 4,815,780,000 4,640,298,000 4,615,774,000 4,599,355,000 4,581,290,000 4,559,690,000 4,539,154,000 4,511,797,000 4,495,675,000 4,463,170,000 4,446,703,000 4,396,044,000 4,380,203,000 4,332,485,000 4,145,627,000 3,953,477,000 3,920,408,000 3,892,680,000  3,661,738,000 3,598,581,000 
        accumulated other comprehensive loss
      -116,624,000 -94,756,000 -93,318,000 -87,417,000 -135,385,000 -155,993,000 -100,436,000 -136,921,000 -116,593,000 -95,330,000 -137,472,000 -119,964,000 -121,161,000 -140,332,000 -186,672,000 -143,079,000 -88,611,000 -69,105,000 -53,726,000 -31,557,000 -47,347,000 -20,201,000 -45,854,000 -57,307,000 -78,995,000 -45,144,000 -56,424,000 -42,484,000 -46,979,000 -48,912,000 -48,218,000 -41,970,000 -18,334,000 -21,930,000 -24,833,000 -32,520,000 -45,913,000 -56,222,000 -33,462,000 -31,616,000 -28,792,000 -41,453,000 -33,519,000 -24,379,000 -23,913,000 -17,611,000 -9,545,000  -1,637,000 -2,091,000 -5,434,000 -10,955,000 -5,583,000 -1,640,000  -4,108,000 -307,000 -1,259,000    -5,741,000                       
        treasury stock
      -630,473,000 -434,786,000 -1,335,236,000 -1,343,323,000 -1,051,593,000 -558,488,000 -419,519,000 -253,258,000 -125,449,000  -603,632,000 -490,403,000 -351,772,000  -430,269,000 -267,642,000 -102,853,000  -251,257,000 -154,416,000 -58,241,000  -121,078,000 -107,880,000 -80,550,000  -291,788,000 -116,247,000 -34,872,000  -625,925,000 -185,512,000 -19,785,000  -306,628,000 -177,615,000 -72,467,000  -294,867,000 -199,710,000 -108,725,000  -202,426,000 -126,068,000 -62,680,000  -226,513,000 -187,491,000 -116,147,000  -736,870,000 -707,245,000 -664,741,000 -624,462,000 -594,643,000 -558,120,000 -490,908,000 -482,994,000 -406,662,000 -251,537,000 -201,077,000 -158,261,000 -131,369,000 -108,623,000 -88,208,000 -66,301,000 -51,226,000 -14,994,000                 
        retained earnings
      3,531,248,000 3,424,929,000 3,339,857,000 3,199,687,000 3,096,069,000 2,972,898,000 2,832,993,000 2,775,086,000 2,643,398,000 2,467,980,000 2,306,815,000 2,146,273,000 2,017,457,000 1,920,351,000 1,743,533,000 1,635,379,000 1,515,842,000 1,256,692,000 1,096,158,000 917,242,000 760,745,000 605,050,000 491,680,000 333,057,000 171,142,000 47,996,000                                                           
        total stockholders’ equity
      4,908,825,000 4,977,371,000 4,731,944,000 4,467,508,000 4,584,561,000 4,878,357,000 4,794,138,000 4,754,676,000 4,633,767,000 4,597,155,000 4,324,204,000 4,289,167,000 4,171,341,000 4,360,187,000 4,233,184,000 4,280,478,000 4,300,522,000 4,530,014,000 4,582,445,000 4,476,657,000 4,321,363,000 4,251,296,000 4,107,617,000 3,904,295,000 3,672,218,000 3,657,958,000 3,501,600,000 3,394,764,000 3,283,217,000 3,191,860,000 3,155,530,000 3,445,278,000 3,386,257,000 3,310,723,000 3,272,655,000 3,287,172,000 3,258,546,000 3,224,370,000 3,168,931,000 3,150,473,000 3,113,582,000 3,120,878,000 3,085,663,000 3,045,312,000 2,981,682,000 2,945,335,000 2,848,380,000 2,772,744,000 2,712,145,000 2,629,431,000 2,543,130,000 2,447,873,000 2,384,777,000 2,345,754,000 2,259,938,000 2,214,633,000 2,201,188,000 2,156,250,000 2,122,011,000 2,228,315,000 2,210,188,000 2,177,605,000 2,034,147,000 1,973,088,000 1,780,449,000 1,738,722,000 1,698,446,000 1,680,891,000 1,631,342,000 1,568,770,000 1,506,133,000 1,462,597,000 1,397,619,000 1,358,552,000 1,271,797,000 1,230,301,000 1,161,318,000 954,693,000 741,695,000   624,214,000   
        total liabilities and stockholders’ equity
      11,645,752,000 11,479,643,000 10,833,273,000 10,536,135,000 9,982,190,000 10,368,785,000 10,190,457,000 10,087,532,000 9,935,606,000 9,900,037,000 9,582,088,000 8,345,965,000 8,183,333,000 8,303,400,000 8,107,369,000 8,211,054,000 8,303,779,000 8,138,673,000 8,115,475,000 7,920,938,000 7,817,920,000 7,764,130,000 7,514,393,000 7,224,798,000 6,947,956,000 7,006,886,000 6,357,434,000 5,343,236,000 5,182,762,000 5,461,770,000 5,363,887,000 5,604,704,000 4,686,904,000 4,602,844,000 4,509,134,000 4,489,039,000 4,449,995,000 4,373,146,000 4,353,635,000 4,269,722,000 4,183,752,000 4,187,925,000 4,184,809,000 4,131,105,000 3,986,913,000 4,001,546,000 3,854,291,000 3,768,657,000 3,651,492,000 2,957,685,000 2,885,125,000 2,725,270,000 2,646,667,000 2,600,627,000 2,539,454,000 2,445,576,000 2,414,118,000 2,345,501,000 2,301,957,000 2,404,149,000 2,374,799,000 2,352,676,000 2,262,752,000 2,202,998,000 2,116,683,000 2,087,510,000 2,028,671,000 1,988,970,000 1,939,312,000 1,880,951,000 1,800,857,000 1,755,417,000 1,699,177,000 1,656,047,000 1,574,620,000 1,519,975,000 1,466,637,000 1,247,932,000 1,027,695,000      
        revolving credit facility
                 20,000,000    75,000,000 75,000,000                                                                    
        accumulated deficit
                                -71,104,000 -208,994,000 -322,909,000 -430,890,000 -524,906,000 -632,489,000 -675,550,000 -742,408,000 -761,515,000 -822,027,000 -879,799,000 -960,729,000 -1,052,368,000 -1,128,368,000 -1,202,003,000 -1,276,861,000 -1,365,281,000 -1,453,321,000 -1,520,521,000 -1,598,267,000 -1,695,374,000 -1,786,529,000 -1,859,415,000 -1,932,215,000 -2,012,564,000 -2,092,320,000 -2,154,215,000 -2,225,702,000 -2,293,994,000 -2,342,225,000 -2,386,464,000 -2,429,691,000 -2,489,772,000 -2,532,057,000 -2,579,978,000 -2,630,595,000 -2,683,105,000 -2,722,814,000 -2,760,937,000 -2,801,815,000 -2,841,895,000 -2,874,640,000 -2,910,647,000 -2,947,728,000 -2,988,261,000 -3,021,621,000 -3,055,955,000 -3,092,866,000 -3,128,744,000 -3,153,008,000 -3,174,654,000 -3,193,833,000 -3,214,456,000 -3,228,475,000 -3,239,740,000  -3,276,993,000 -3,549,253,000 
        current portion of convertible senior notes
                                      668,745,000                                                    
        accumulated other comprehensive income
                                                     2,497,000       483,000    -9,299,000 298,000 -2,458,000  -5,389,000 -13,118,000 -12,462,000 -10,682,000 -9,527,000 -12,500,000 -19,428,000 -24,350,000 -19,094,000 -13,146,000 -11,267,000 3,053,000 2,840,000 1,454,000 1,846,000 1,296,000 1,112,000 620,000 524,000  594,000 785,000 
        accrued expenses and other current liabilities
                                                         143,652,000 119,798,000 133,087,000 131,616,000 94,608,000 91,076,000 85,371,000 85,265,000 86,909,000 84,778,000 94,661,000 84,338,000 70,165,000 52,526,000 68,566,000 54,871,000 41,419,000 46,203,000 66,132,000 46,605,000 41,434,000 51,485,000 56,233,000           
        accrued restructuring
                                                         533,000 618,000 275,000 628,000 626,000 1,326,000 3,430,000 63,000 334,000 322,000 307,000 768,000 882,000 708,000 791,000 869,000 1,148,000 1,546,000 1,653,000 59,000 63,000 442,000 607,000           
        commitments, contingencies and guarantees
                                                                                          
        other intangible assets
                                                           84,554,000 82,375,000 84,056,000 89,519,000 45,386,000 49,702,000 53,887,000 58,179,000 62,456,000 66,723,000 70,853,000 72,165,000 76,273,000 80,415,000 84,518,000 88,756,000 92,995,000 77,246,000 80,419,000 83,910,000 87,500,000 90,335,000 93,170,000 92,371,000 58,683,000 31,830,000 33,770,000 35,971,000  40,563,000 42,859,000 
        1% convertible senior notes
                                                                    58,620,000 63,562,000 199,725,000  199,755,000 199,855,000 199,855,000 199,855,000 199,855,000 199,855,000 199,855,000 199,855,000 199,855,000 199,960,000 199,960,000 200,000,000 200,000,000 200,000,000 200,000,000 200,000,000 200,000,000 200,000,000 
        1% convertible senior notes, current portion
                                                                       199,755,000                   
        deferred income taxes
                                                                                277,750,000 294,134,000 307,712,000 5,348,000       
        current portion of accrued restructuring
                                                                                674,000 856,000 1,997,000 1,820,000 1,248,000 1,418,000 1,533,000 1,749,000 1,788,000 2,159,000 
        accrued restructuring, net of current portion
                                                                                 73,000 188,000 318,000 868,000 1,150,000 1,505,000 1,844,000 2,183,000 2,522,000 
        deferred revenue, net of current portion
                                                                                1,863,000 1,578,000 1,013,000        
        prepaid expense and other current assets
                                                                                   13,252,000       
        deferred income taxes assets
                                                                                   319,504,000       
        deferred compensation
                                                                                          
        deferred tax assets
                                                                                    324,353,000 324,064,000 326,609,000  320,413,000  
        deferred stock compensation
                                                                                        -9,143,000 -10,584,000 
        consolidated balance sheet data:
                                                                                          
        cash, cash equivalents and marketable securities
                                                                                       309,574,000   
        restricted cash
                                                                                          
        restricted marketable securities
                                                                                       4,555,000  3,722,000 
        working capital
                                                                                       293,122,000   
        current portion of obligations under capital leases and equipment loans
                                                                                          
        current portion of 51/2% convertible subordinated notes
                                                                                          
        obligations under capital leases and equipment loans, net of current portion
                                                                                          
        51/2% convertible subordinated notes, net of current portion
                                                                                          
        obligations under capital leases
                                                                                        420,000  
        51/2% convertible subordinated notes
                                                                                         56,614,000 
        stockholders’ equity
                                                                                          
        current portion of obligations under capital leases
                                                                                         590,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-06-30 
                                                                                           
          cash flows from operating activities:
                                                                                           
          net income
        106,319,000 85,072,000 140,170,000 103,618,000 123,171,000 139,905,000 57,907,000 131,688,000 175,418,000 161,165,000 160,542,000 128,816,000 97,106,000 176,818,000 108,154,000 119,537,000 119,163,000 160,534,000 178,916,000 156,497,000 155,695,000 113,370,000 158,623,000 161,915,000 123,146,000 119,100,000 137,890,000 113,915,000 107,130,000 94,015,000 107,583,000 43,061,000 53,714,000 19,107,000 60,512,000 57,772,000 80,930,000 91,639,000 76,000,000 73,635,000 74,858,000 88,420,000 88,040,000 67,200,000 77,746,000 97,107,000 91,155,000 72,886,000 72,800,000 80,349,000 79,756,000 61,895,000 71,487,000 68,292,000 48,231,000 44,239,000 43,227,000 60,081,000 42,285,000 47,921,000 50,617,000 52,510,000 39,709,000 38,123,000 40,878,000 40,080,000 32,745,000 36,007,000 37,081,000 40,533,000 33,360,000 34,334,000 36,911,000 35,878,000 24,264,000 21,646,000 19,179,000 20,623,000 14,019,000 11,264,000 11,495,000 25,759,000 29,979,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                           
          depreciation and amortization
        183,751,000 182,505,000 176,623,000 175,461,000 174,022,000 167,949,000 165,729,000 158,549,000 156,183,000 147,634,000 148,560,000 139,125,000 135,457,000 148,570,000 150,985,000 150,604,000 142,595,000 141,699,000 139,747,000 137,715,000 131,471,000 127,708,000 118,893,000 115,580,000 116,208,000 115,800,000 110,604,000 106,065,000 108,205,000 116,294,000 107,833,000 106,298,000 104,095,000 99,396,000 97,178,000 89,206,000 86,533,000 84,008,000 84,511,000 85,114,000 80,669,000 80,329,000 74,785,000 73,989,000 70,460,000 67,763,000 67,415,000 58,712,000 53,516,000 49,976,000 47,954,000 44,126,000 42,375,000 54,960,000 53,457,000 50,112,000 45,634,000 43,650,000 41,761,000 41,333,000 41,134,000 39,129,000 36,479,000 34,674,000 32,960,000 32,573,000 31,565,000 29,678,000 28,678,000 27,452,000 24,570,000 23,411,000 22,647,000 20,226,000 19,242,000 17,578,000 14,849,000 11,803,000      
          stock-based compensation
        128,681,000 119,225,000 115,423,000 112,776,000 111,978,000 99,045,000 102,607,000 98,466,000 93,260,000 92,123,000 87,017,000 87,444,000 61,883,000 58,374,000 50,702,000 51,882,000 56,227,000 48,955,000 49,018,000 50,481,000 54,305,000 50,510,000 50,217,000 49,191,000 47,493,000 46,878,000 46,815,000 48,142,000 45,305,000 44,998,000 46,632,000 47,497,000 44,686,000 42,205,000 41,848,000 41,269,000 38,986,000 39,202,000 38,652,000 34,911,000 31,741,000 33,711,000 31,046,000 32,251,000 29,669,000 27,196,000 28,008,000 31,678,000 25,114,000 23,673,000 24,479,000                                 
          provision for deferred income taxes
        -1,749,000 2,307,000 -19,717,000 12,680,000 31,383,000  -2,541,000 13,946,000 -10,467,000   -4,516,000 4,925,000   -29,885,000 -13,579,000   5,461,000 1,764,000 -11,273,000 -33,942,000 14,282,000 -2,888,000 -23,648,000 -27,000 15,626,000 8,982,000 -10,567,000 25,022,000 -4,302,000 -7,814,000 -26,171,000 -14,066,000 7,396,000 31,972,000   1,713,000 1,072,000 22,039,000 -1,666,000 -24,580,000 8,305,000 -36,502,000 -11,218,000 20,180,000 1,660,000     -6,645,000    32,722,000    -4,436,000 22,287,000 19,973,000 24,638,000 19,922,000 18,617,000 20,290,000 22,877,000 15,312,000 22,434,000 20,735,000 23,217,000           
          amortization of debt issuance costs
        2,148,000 1,877,000 1,926,000 1,645,000 1,605,000 1,588,000 1,591,000 1,660,000 1,682,000  1,404,000 1,098,000 1,098,000                                                                       
          gain on investments
            -9,313,000                                                                               
          other non-cash reconciling items
        2,709,000 42,121,000 1,359,000 1,840,000 2,142,000 19,731,000 41,799,000 1,896,000 2,062,000 5,019,000 6,548,000 17,052,000 21,602,000 5,969,000 2,451,000 10,045,000 12,598,000 9,808,000 -1,639,000 12,428,000 1,226,000 6,743,000 1,480,000 2,752,000 12,052,000 966,000 2,598,000 1,301,000 -121,000 2,718,000 1,345,000 3,636,000 4,379,000 6,413,000 2,046,000 1,738,000 -129,000 2,207,000 4,866,000 749,000 2,752,000 2,533,000 2,125,000                                         
          changes in operating assets and liabilities, net of effects of acquisitions:
                                                                                           
          accounts receivable
        -94,272,000 -34,871,000 8,551,000 -7,440,000 -25,677,000 -50,392,000 11,290,000 17,538,000 -736,000 -2,941,000 -23,484,000 2,473,000 -25,251,000 -48,063,000 30,796,000 35,251,000 -39,198,000 -8,871,000 -10,821,000 11,176,000 -15,580,000 -4,942,000 20,107,000 -31,633,000 -73,913,000 -26,327,000 -17,000 5,639,000 -43,766,000 -16,834,000 3,278,000 1,530,000 -18,419,000 -44,626,000 -1,326,000 12,273,000 -30,146,000 -19,121,000 4,691,000 1,880,000 15,906,000 -15,540,000 -26,415,000 18,260,000 -32,552,000 -8,184,000 -8,959,000 -23,117,000 -18,137,000 -15,863,000 -16,118,000 -6,848,000 -28,355,000 19,479,000 -27,974,000 7,803,000 -1,416,000 -30,016,000 -8,277,000 -7,101,000 7,557,000 -17,221,000 10,064,000 -18,988,000 2,582,000 -5,054,000 -6,765,000 5,941,000 4,719,000 -10,582,000 -5,184,000 -3,636,000 -2,072,000 -11,386,000 -9,054,000 -12,156,000 659,000 -14,022,000      
          prepaid expenses and other current assets
        -10,096,000 -25,648,000 11,598,000 7,430,000 -37,129,000 -20,614,000 -717,000 1,253,000 -26,016,000 -2,623,000 1,994,000 7,912,000 -26,009,000 22,746,000 -4,739,000 26,563,000 -64,695,000 19,133,000 -4,250,000 24,539,000 -35,388,000 -4,015,000 -11,401,000 455,000 -10,434,000 23,352,000 11,624,000 -10,258,000 -13,029,000 -2,048,000 -10,662,000 13,505,000 -4,927,000 11,884,000 15,913,000 -3,043,000 -47,065,000 19,867,000 15,005,000 -7,510,000 -3,481,000 -8,982,000 4,097,000 13,839,000 -1,817,000 -38,442,000 -9,348,000 7,963,000 -20,961,000 5,424,000 9,840,000 -5,071,000 -14,035,000 -5,037,000 2,131,000 4,663,000 4,309,000 -6,936,000 -919,000 6,917,000 -6,076,000 29,304,000 -1,109,000 -28,906,000 -11,378,000 5,707,000 -6,452,000 -468,000 -3,807,000 2,737,000 607,000 -6,684,000 -2,131,000 -4,384,000 -2,192,000 -307,000 -5,126,000 -3,248,000      
          accounts payable and accrued expenses
        -42,035,000 13,917,000 22,047,000 25,365,000 -109,906,000 79,535,000 -31,765,000 19,523,000 -66,949,000 20,345,000 23,615,000 13,478,000 -97,263,000 38,228,000 -4,752,000 6,963,000 -66,938,000 47,786,000 66,796,000 -10,073,000 -72,986,000 -10,607,000 97,220,000 -19,944,000 -27,458,000 38,210,000 23,348,000 32,577,000 -85,366,000 34,317,000 35,012,000 4,221,000 -31,312,000 11,082,000 39,691,000 6,399,000 -23,940,000 -36,401,000 42,610,000 44,659,000 -32,377,000 25,526,000 -5,575,000 84,376,000 -52,703,000 57,822,000 15,417,000 43,970,000 -22,511,000 -3,197,000                                  
          deferred revenue
        56,281,000 -16,811,000 -19,360,000 8,169,000 14,948,000 6,709,000 -8,719,000 -11,619,000 34,316,000 -24,098,000 -12,905,000 602,000 36,449,000 -6,790,000 -2,675,000 -29,216,000 55,394,000 -11,128,000 -9,831,000 -7,345,000 25,439,000 -16,121,000 -6,539,000 -5,647,000 26,989,000 -30,261,000 -11,259,000 -1,313,000 29,286,000 -24,846,000 -5,625,000 4,309,000 25,243,000 151,000 -9,415,000 -470,000 10,876,000 -8,098,000 -5,241,000 1,473,000 10,653,000 -3,684,000 -115,000 76,000 6,947,000 37,000 2,938,000 -409,000 5,159,000 504,000 4,379,000 -1,613,000 8,225,000 -990,000 1,401,000 2,667,000 1,474,000 -2,335,000 796,000 1,271,000 -3,453,000 -2,328,000 -5,807,000 1,090,000 -2,409,000 3,610,000 1,315,000 840,000 106,000 841,000 -3,432,000 -1,423,000 2,522,000 1,324,000 859,000 -1,003,000 4,117,000 -759,000      
          other current liabilities
        -10,353,000 25,527,000 -2,105,000 -2,181,000 -20,276,000 -15,490,000 41,370,000 624,000 356,000 -774,000 -13,855,000 -9,689,000 25,834,000 -1,510,000 2,093,000 -4,460,000 -1,441,000 -2,446,000 -1,728,000 -15,514,000 -716,000 19,739,000 -523,000 -2,043,000 928,000 4,620,000 -3,111,000 -9,266,000 -9,473,000 7,392,000 -3,625,000 -8,046,000 13,701,000 12,727,000 -2,250,000 2,385,000 3,516,000 814,000 -2,301,000 95,000 6,876,000 -491,000 -53,000 157,000 42,000 1,000 -2,122,000 132,000 1,287,000 20,000                                  
          other non-current assets and liabilities
        -8,876,000 -28,580,000 5,317,000 19,786,000 -5,748,000 -18,038,000 14,057,000 -2,627,000 -7,231,000 4,826,000 -9,718,000 -17,457,000 -2,158,000 16,481,000 26,278,000 3,697,000 4,670,000 -17,852,000 4,522,000 -3,692,000 -11,694,000 4,215,000 -7,909,000 -1,894,000 -4,513,000 -5,430,000 -32,213,000 7,491,000 2,079,000 24,480,000 -10,397,000 -937,000 996,000 28,458,000 1,414,000 5,062,000 -13,512,000 -15,744,000 5,035,000 3,011,000 -1,949,000 -6,261,000 13,822,000 2,684,000 1,741,000 32,469,000 -1,529,000 -12,697,000 4,031,000 6,662,000 -1,479,000 408,000 -2,257,000 -3,534,000 -1,031,000 1,061,000 -566,000 -4,651,000 4,303,000 9,068,000 -16,000 2,705,000 -2,161,000 4,232,000 -3,470,000 -4,201,000 2,796,000 1,534,000 2,615,000 1,053,000 -414,000 62,000 -259,000 1,179,000 1,479,000 -35,000 1,251,000 309,000      
          net cash from operating activities
        312,508,000 366,584,000 441,832,000 459,149,000 251,200,000 343,788,000 392,542,000 430,963,000 351,878,000 389,193,000 359,436,000 366,311,000 233,499,000 341,498,000 369,296,000 341,431,000 222,451,000 386,900,000 389,737,000 378,133,000 249,793,000 291,093,000 401,973,000 298,691,000 223,243,000 282,140,000 297,385,000 317,929,000 160,850,000 286,155,000 310,481,000 219,681,000 192,010,000 197,441,000 236,291,000 224,633,000 142,618,000 181,788,000 251,400,000 242,872,000 190,238,000 217,791,000 182,608,000 264,023,000 99,729,000 195,541,000 173,282,000 200,224,000 89,023,000 171,732,000 159,414,000 129,722,000 103,040,000 146,854,000 141,496,000 149,552,000 92,503,000 135,907,000 116,289,000 111,848,000 88,511,000 110,359,000 117,963,000 86,380,000 87,753,000 124,869,000 105,243,000 103,831,000 90,469,000 92,473,000 93,218,000 69,794,000 88,009,000 64,431,000 77,351,000 37,329,000 56,278,000 22,570,000 48,490,000 27,746,000 33,161,000 27,673,000 35,626,000 
          capital expenditures
        -119,868,000 -258,258,000 -161,539,000 -223,781,000 -196,008,000 -143,004,000 -196,294,000 -159,765,000 -130,689,000 -125,184,000 -197,619,000 -176,289,000 -222,245,000 -110,788,000 -97,988,000 -118,167,000 -131,359,000 -109,695,000 -116,247,000 -154,569,000 -164,719,000 -167,445,000 -228,759,000 -120,239,000 -215,429,000 -133,666,000 -152,633,000 -133,349,000 -142,429,000 -117,334,000 -86,698,000 -88,634,000 -94,520,000 -109,189,000 -137,182,000 -89,217,000 -51,981,000 -75,938,000 -79,870,000 -78,141,000 -82,340,000 -78,837,000 -133,064,000 -96,013,000 -137,069,000 -92,320,000 -71,782,000 -70,519,000 -84,006,000 -62,335,000 -41,720,000 -72,498,000 -63,476,000 -60,669,000 -60,294,000 -55,539,000 -43,344,000 -46,570,000 -47,317,000 -42,740,000 -46,235,000 -48,700,000 -42,058,000 -66,097,000 -35,190,000 -22,463,000 -29,810,000 -23,409,000 -21,159,000 -14,140,000 -34,560,000 -24,032,000 -28,212,000 -15,901,000 -23,326,000 -29,692,000 -31,543,000 -22,476,000 
          free cash flows
        192,640,000 108,326,000 280,293,000 235,368,000 55,192,000 200,784,000 196,248,000 271,198,000 221,189,000 264,009,000 161,817,000 190,022,000 11,254,000 230,710,000 271,308,000 223,264,000 91,092,000 277,205,000 273,490,000 223,564,000 85,074,000 123,648,000 173,214,000 178,452,000 7,814,000 148,474,000 144,752,000 184,580,000 18,421,000 168,821,000 223,783,000 131,047,000 97,490,000 88,252,000 99,109,000 135,416,000 90,637,000 105,850,000 171,530,000 164,731,000 107,898,000 138,954,000 49,544,000 168,010,000 -37,340,000 103,221,000 101,500,000 129,705,000 5,017,000 109,397,000 117,694,000 57,224,000 39,564,000 86,185,000 81,202,000 94,013,000 49,159,000 89,337,000 68,972,000 69,108,000 42,276,000 61,659,000 75,905,000 20,283,000 52,563,000 102,406,000 75,433,000 80,422,000 69,310,000 78,333,000 58,658,000 45,762,000 59,797,000 48,530,000 54,025,000 7,637,000 24,735,000 94,000 48,490,000 27,746,000 33,161,000 27,673,000 35,626,000 
          cash flows from investing activities:
                                                                                           
          cash paid for asset acquisition
            -29,930,000  -66,000               -36,376,000                                                           
          purchases of property and equipment
        -101,686,000 -131,694,000 -112,780,000 -145,536,000 -117,776,000 -92,885,000 -112,803,000 -90,994,000 -93,751,000 -70,404,000 -133,500,000 -112,305,000 -141,700,000 -65,249,000 -50,797,000 -74,215,000 -51,005,000 -63,838,000 -70,678,000 -107,231,000 -87,222,000 -118,520,000 -180,841,000 -73,857,000 -141,095,000 -90,901,000 -110,608,000 -88,406,000 -69,752,000 -74,324,000 -44,985,000 -46,716,000 -51,584,000 -68,680,000 -80,585,000 -59,657,000 -45,224,000 -46,075,000 -48,054,000 -45,014,000 -41,806,000 -49,272,000 -102,909,000 -67,571,000 -91,924,000 -64,693,000 -44,474,000 -45,981,000 -52,011,000 -45,397,000 -41,720,000 -54,369,000 -46,478,000 -46,386,000 -46,636,000 -42,187,000 -30,433,000 -34,449,000 -37,244,000 -32,925,000 -35,600,000 -39,685,000 -33,145,000 -58,243,000 -28,203,000 -22,463,000 -24,422,000 -18,259,000 -15,774,000 -14,140,000 -30,286,000 -24,032,000 -21,911,000 -9,939,000 -18,345,000 -25,579,000 -27,542,000 -18,944,000      
          capitalization of internal-use software development costs
        -90,161,000 -73,001,000 -82,236,000 -78,245,000 -78,232,000 -69,974,000 -72,314,000 -72,543,000 -80,003,000 -63,483,000 -64,119,000 -63,984,000 -80,545,000 -45,539,000 -47,191,000 -43,952,000 -80,354,000 -45,857,000 -45,569,000 -47,338,000 -77,497,000 -48,925,000 -47,918,000 -46,382,000 -74,334,000 -42,765,000 -42,025,000 -44,943,000 -72,677,000 -43,010,000 -41,713,000 -41,918,000 -61,491,000 -38,172,000 -39,155,000 -37,348,000 -45,957,000 -29,863,000 -31,816,000 -33,127,000 -40,534,000 -29,565,000 -30,155,000 -28,442,000 -45,145,000 -27,627,000 -27,308,000 -24,538,000 -31,995,000 -16,938,000                 -6,761,000 -6,394,000 -7,293,000  -6,142,000             
          purchases of short- and long-term marketable securities
        -161,455,000 -113,325,000 -181,470,000 -662,715,000 -7,080,000 -34,535,000 -15,519,000 -16,103,000 -170,019,000  -1,435,016,000 -630,000 -134,191,000      -229,496,000 -291,957,000 -90,279,000  -311,010,000 -452,737,000 -389,779,000  -981,805,000 -381,133,000 -10,625,000 -91,611,000 -314,200,000 -394,534,000 -73,352,000 -77,399,000 -67,879,000 -88,913,000 -92,306,000 -166,253,000 -230,223,000 -288,742,000 -95,843,000 -108,690,000 -178,200,000 -308,685,000 -97,304,000 -157,211,000 -204,607,000 -204,648,000 -658,943,000 -91,329,000 -93,681,000 -164,525,000 -145,350,000 -198,039,000 -137,809,000 -135,845,000 -280,649,000 -152,657,000 -149,318,000 -302,520,000 -275,615,000 -246,406,000 -285,408,000 -382,614,000 -232,065,000 -259,557,000 -366,912,000 -83,902,000 -79,980,000 -53,514,000 -121,096,000 -198,277,000 -160,182,000           
          proceeds from sales of short- and long-term marketable securities
        5,606,000 6,793,000 578,000 198,000 265,806,000 25,368,000 87,000 292,470,000 15,144,000  326,000 15,319,000 185,249,000  2,248,000 1,905,000 571,369,000  430,774,000 442,000 7,154,000  142,000 28,488,000 1,179,000  279,000 24,000 244,000  112,000 16,196,000  190,000 -42,000 180,257,000 -160,000 7,359,000   2,008,000  57,254,000 297,059,000  1,487,000 22,211,000 55,509,000  25,832,000 82,161,000 28,000,000  272,859,000 162,675,000 110,034,000  264,025,000 201,058,000 73,562,000 99,001,000 163,047,000 72,235,000 69,276,000  18,067,000             
          proceeds from maturities and redemptions of short- and long-term marketable securities
        30,000,000 666,000 6,421,000 206,072,000 847,149,000 56,000,000 84,762,000 44,750,000 167,111,000  491,004,000 91,637,000  120,433,000                                                                   
          other
        -1,798,000 71,000 1,156,000 -3,430,000 -3,091,000 -187,000 -375,000 -5,400,000 9,935,000 2,837,000 11,860,000 -498,000 -20,268,000 -2,119,000 203,000 1,036,000 -5,242,000 -2,657,000                                                                  
          net cash from investing activities
        -319,494,000 -366,392,000 -368,331,000 -682,866,000 876,846,000 -244,186,000 -116,228,000 -286,682,000 -151,583,000 -315,833,000 -1,164,163,000 -248,354,000 -119,888,000 -94,657,000 -95,529,000 -115,226,000 -316,898,000 -843,954,000 392,983,000 -159,620,000 -36,308,000 -617,934,000 -224,665,000 -89,637,000 -110,738,000 -589,764,000 -904,984,000 -409,427,000 236,241,000  -148,647,000 -418,102,000 -111,485,000  -103,002,000 -294,150,000 139,411,000  -110,472,000 -138,807,000 -55,428,000  -114,452,000 -291,378,000 57,138,000  -177,895,000 -134,040,000 -730,458,000 -26,537,000 -128,421,000 -71,264,000 -86,886,000 -109,695,000 -113,928,000 -57,211,000 -498,207,000 134,942,000 192,395,000 -81,702,000 -74,512,000 -68,459,000 -43,192,000 -143,541,000 -80,167,000 -139,939,000 -193,334,000 9,823,000 -34,048,000 -80,467,000 -116,881,000 -133,231,000 -33,861,000 -91,345,000 -31,975,000 -75,669,000 -27,718,000 -64,692,000 -38,728,000 -32,185,000 -70,013,000 -177,985,000 -24,458,000 
          cash flows from financing activities:
                                                                                           
          proceeds related to the issuance of common stock under stock plans
        21,619,000 13,553,000 19,656,000 9,059,000 20,182,000 13,805,000 19,442,000 7,956,000 20,310,000 13,426,000 18,222,000 10,074,000 21,257,000  16,844,000 7,204,000 21,941,000 12,690,000 15,820,000 9,712,000 21,410,000 13,963,000 16,007,000 10,259,000 19,546,000 13,908,000 14,432,000 8,998,000 19,774,000 10,111,000 18,394,000 11,365,000 22,738,000 13,940,000 16,060,000 8,150,000 17,530,000 17,221,000 15,244,000 8,745,000 18,350,000 7,503,000 17,776,000 12,072,000 24,440,000 11,748,000 17,362,000 13,670,000 44,329,000 9,289,000                                  
          employee taxes paid related to net share settlement of stock awards
        -106,574,000 -13,789,000 -12,052,000 -25,866,000 -72,063,000 -16,061,000 -15,868,000 -31,914,000 -109,333,000                                                                           
          repurchases of common stock
        -205,886,000 -300,000,000 -499,963,000 -138,371,000 -165,839,000 -127,809,000 -125,449,000 -54,891,000 -113,197,000 -137,358,000 -348,600,000 -177,741,000 -162,627,000 -164,789,000 -102,853,000 -270,998,000 -96,841,000 -96,175,000 -58,241,000 -72,510,000 -13,198,000 -27,330,000 -80,550,000 -42,731,000 -175,541,000 -81,375,000 -34,872,000 -124,075,000 -440,413,000 -165,727,000 -19,785,000 -54,565,000 -129,014,000 -105,148,000 -72,467,000 -78,927,000 -95,157,000 -90,985,000 -108,725,000 -100,180,000 -76,358,000 -63,388,000 -62,680,000 -42,134,000 -39,022,000 -71,344,000 -116,147,000 -48,011,000 -29,626,000 -42,504,000 -40,278,000 -29,819,000 -36,523,000 -67,213,000 -7,913,000 -76,332,000 -155,125,000 -48,935,000 -43,678,000 -27,299,000 -22,505,000 -20,376,000 -22,245,000                   
          net cash from financing activities
        -291,709,000 -1,702,000 7,121,000 -41,205,000 -552,250,000 -140,840,000 -162,369,000 -160,445,000 -215,981,000 -56,777,000 974,645,000 -117,200,000 -357,289,000 -177,960,000 -229,474,000 -165,908,000 -60,835,000 -269,225,000 -93,157,000 -98,844,000 -100,777,000 -71,076,000 -10,560,000 -30,166,000 -111,839,000 -42,973,000 836,285,000 -83,694,000 -745,295,000 -126,124,000 -433,534,000 823,927,000 -30,661,000 -50,898,000 -119,738,000 -105,511,000 -88,858,000 -66,257,000 -85,615,000 -86,657,000 -115,736,000 -95,220,000 -65,085,000 -51,210,000 -56,213,000 -29,550,000 -27,895,000 -62,036,000 555,508,000 -46,846,000 -2,162,000 -15,956,000 -50,279,000 -16,492,000 -30,287,000 -52,628,000 -9,076,000 -65,435,000 -155,505,000 -42,441,000 -30,707,000 -6,875,000 -2,096,000 6,321,000 -15,026,000 -6,099,000 -30,954,000 -9,573,000 4,089,000 2,307,000 2,421,000 20,628,000 7,786,000     22,177,000 15,921,000 12,289,000 10,042,000 208,389,000 5,561,000 
          effects of exchange rate changes on cash, cash equivalents and restricted cash
        -5,672,000 1,496,000 -759,000 16,070,000 5,431,000 -12,431,000 9,494,000 -5,293,000 -4,013,000 11,597,000 -7,019,000 -3,007,000 2,297,000 14,319,000 -11,977,000 -13,798,000 -1,462,000 -2,148,000 -5,080,000 3,003,000 -7,151,000 7,400,000 4,363,000 8,155,000 -8,983,000  -5,328,000 1,077,000 1,601,000  -68,000 -12,625,000 1,165,000                                                   
          net increase in cash, cash equivalents and restricted cash
        -304,367,000 -14,000 79,863,000 -248,852,000 581,227,000 -53,669,000        83,200,000 32,316,000 46,499,000 -156,744,000 -728,427,000 684,483,000 122,672,000 105,557,000 -390,517,000 171,111,000    223,358,000 -174,115,000 -346,603,000                                                       
          cash, cash equivalents and restricted cash at beginning of period
        931,308,000  519,084,000  490,470,000  543,022,000  537,751,000  353,466,000  394,146,000  1,036,987,000  314,429,000                                                   
          cash, cash equivalents and restricted cash at end of period
        626,941,000  79,863,000 -248,852,000 1,100,311,000  123,439,000 -21,457,000 470,771,000  162,899,000 -2,250,000 301,641,000  32,316,000 46,499,000 381,007,000  684,483,000 122,672,000 459,023,000  171,111,000 187,043,000 385,829,000  223,358,000 -174,115,000 690,384,000  -271,768,000 612,881,000 365,458,000                                                   
          supplemental disclosures of cash flow information:
                                                                                           
          cash paid for interest expense
        9,558,000 2,444,000 9,469,000   864,000 9,411,000 992,000 9,153,000 718,000                                                                          
          cash paid for operating lease liabilities
        109,442,000 95,337,000 78,301,000   74,608,000 76,831,000 71,833,000 64,795,000 70,073,000                                                                          
          non-cash activities:
                                                                                           
          operating lease right-of-use assets obtained in exchange for operating lease liabilities
        287,573,000 528,215,000 32,023,000   71,418,000 79,034,000 106,293,000 100,167,000 80,629,000                                                                          
          purchases of property and equipment and capitalization of internal-use software development costs included in accounts payable and accrued expenses
        71,979,000 -53,563,000 33,477,000   19,855,000 -11,177,000 3,772,000 43,065,000 8,703,000                       18,555,000 -2,337,000 -17,442,000 7,788,000 39,200,000                                               
          capitalization of stock-based compensation
        34,993,000 29,768,000 32,360,000   25,852,000 27,647,000 27,393,000 26,596,000 23,351,000                       7,811,000 7,249,000 7,576,000 7,615,000 6,411,000                                      1,551,000 1,427,000 1,384,000   1,242,000 492,000   
          reconciliation of cash and cash equivalents, and restricted cash:
                                                                                           
          cash and cash equivalents
        622,383,000 2,298,000 77,631,000   -52,042,000 121,707,000 -19,675,000 467,717,000 29,561,000                                                                          
          restricted cash
        4,558,000 -2,312,000 2,232,000   -1,627,000 1,732,000 -1,782,000 3,054,000 -1,381,000                                                                          
          cash, cash equivalents and restricted cash
        626,941,000 -14,000 79,863,000   -53,669,000 123,439,000 -21,457,000 470,771,000 28,180,000                                                                          
          loss on investments
         -57,000       -110,000 -27,000 -174,000 -641,000 16,536,000                             50,000                                     
          cash paid for business acquisitions, net of cash acquired
                                                                                        
          cash paid for asset acquisitions
                                                                                         
          proceeds from borrowings under revolving credit facility
                    75,000,000                                                                   
          repayment of borrowings under revolving credit facility
               -20,000,000                                                                         
          proceeds from the issuance of convertible senior notes, net of issuance costs
         -594,000 -392,000                                          -868,000 679,603,000                                   
          proceeds from the issuance of warrants related to convertible senior notes
                                                  77,970,000                                   
          purchases of note hedges related to convertible senior notes
                                                                                           
          repayment of convertible senior notes
                               -690,000,000                                                       
          cash, cash equivalents and restricted cash at beginning of year
                                                                                           
          cash, cash equivalents and restricted cash at end of year
                                                                                           
          supplemental disclosure of cash flow information:
                                                                                           
          reconciliation of cash, cash equivalents and restricted cash:
                                                                                           
          cash received for business acquisitions, net of cash acquired
                         -15,638,000  106,000                                                           
          purchase of note hedge related to convertible senior notes
                                                 -101,292,000                                   
          cash paid for income taxes, net of refunds received of 15,539 and 5,499 for the nine months ended september 30, 2025 and 2024, respectively
                                                                                           
          cash paid for income taxes, net of refunds received of 3,634 and 5,033 for the six months ended june 30, 2025 and 2024, respectively
                                                                                           
          benefit for deferred income taxes
                 -13,224,000    -70,424,000                                                                      
          cash paid for income taxes, net of refunds received of 5,888, 11,006 and 15,458 for the years ended december 31, 2024, 2023 and 2022, respectively
                                                                                           
          cash paid for income taxes, net of refunds received of 5,499 and 7,462 for the nine months ended september 30, 2024 and 2023, respectively
                                                                                           
          net decrease in cash, cash equivalents and restricted cash
               -21,457,000 -19,699,000  162,899,000 -2,250,000 -241,381,000            -8,317,000                                                           
          cash paid for income taxes, net of refunds received of 5,033 and 691 for the six months ended june 30, 2024 and 2023, respectively
                                                                                           
          cash paid for business acquisition, net of cash acquired
                                                                                           
          cash paid for income taxes, net of refunds received of 525 and 225 for the three months ended march 31, 2024 and 2023, respectively
                74,940,000                                                                           
          amortization of debt discount and issuance costs
                     1,099,000 1,086,000 1,091,000 1,119,000 16,741,000 16,567,000 16,460,000 16,257,000 15,766,000 15,747,000 15,677,000 15,633,000 15,096,000 11,133,000 8,010,000 11,618,000 14,114,000 14,085,000 8,909,000 4,850,000 4,850,000 4,746,000 4,646,000 4,597,000 4,680,000 4,666,000 4,639,000 4,653,000 4,641,000 4,631,000 4,677,000 4,576,000 4,524,000 4,482,000 4,516,000 1,941,000                                   
          purchases of short-and long-term marketable securities
                                                                                           
          proceeds from sales of short-and long-term marketable securities
                                                                                           
          proceeds from maturities and redemptions of short-and long-term marketable securities
                                                                                           
          cash paid for income taxes, net of refunds received of 11,006, 15,458 and 14,808 for the years ended december 31, 2023, 2022 and 2021, respectively
                                                                                           
          cash received from equity method investment
                                                                                           
          employee taxes paid related to net share settlement of stock-based awards
                  -11,304,000 -9,712,000 -29,894,000 -10,580,000 -8,514,000 -8,323,000 -54,819,000 -10,917,000 -11,935,000 -12,314,000 -63,946,000 -12,529,000 -13,369,000 -13,095,000 -50,835,000 -14,150,000 -11,160,000 -11,317,000 -38,639,000 -12,160,000 -10,837,000 -11,594,000 -29,714,000 -10,273,000 -6,784,000 -7,417,000 -33,921,000 -6,985,000 -6,150,000 -5,914,000 -26,496,000 -6,993,000 -7,817,000 -8,253,000 -31,101,000 -7,444,000 -8,957,000 -7,977,000 -26,271,000 -12,773,000 -7,434,000                                 
          cash paid for income taxes, net of refunds received of 7,462 and 8,499 for the nine months ended september 30, 2023 and 2022, respectively
                                                                                           
          cash paid for acquisitions, net of cash acquired
                   -86,256,000 -20,070,000 8,000 -872,099,000                                                                   
          proceeds from the issuance of common stock under stock plans
                                                                                           
          net proceeds from borrowings and repayments under revolving credit facility
                                                                                           
          cash paid for equity method investment
                                 4,205,000 -40,213,000                                                       
          proceeds from the issuance of convertible senior notes
                                    -437,000                                                     
          proceeds from the issuance of warrants
                                                                                        
          proceeds from maturities of short- and long-term marketable securities
                          309,405,000 286,855,000 226,995,000  317,021,000 454,696,000 529,637,000  229,517,000 101,469,000 547,793,000  254,338,000 64,830,000 59,540,000  85,073,000 89,020,000 143,881,000 166,204,000 196,831,000 176,693,000 125,109,000 118,814,000 197,440,000 222,030,000 305,647,000 95,178,000 93,300,000 80,898,000 102,911,000 49,430,000 56,022,000 143,302,000 66,171,000 101,629,000 72,735,000 52,010,000 89,414,000 178,358,000 116,124,000 101,195,000 137,233,000 74,069,000 20,435,000 116,107,000 113,995,000 49,800,000 41,583,000 44,661,000 5,500,000  22,574,000             
          proceeds from maturities of short-and long-term marketable securities
                                                                                           
          restructuring-related software charge
                                                                                           
          effects of exchange rate changes on cash and cash equivalents
                                         623,000 2,100,000 5,210,000 4,979,000 -8,442,000 -154,000 -3,676,000 4,365,000 -2,697,000 -4,048,000 3,456,000 -6,747,000 -5,267,000 -7,318,000 1,291,000 762,000 527,000 1,319,000 -2,912,000 -2,589,000 -1,328,000 2,373,000 -1,441,000 307,000 -1,816,000 -3,209,000 750,000 2,016,000 -726,000 4,386,000 -1,878,000 -641,000  764,000 1,792,000 -1,374,000  -2,153,000 -269,000 1,483,000  1,331,000 212,000 922,000  -62,000 630,000 40,000   
          net increase in cash and cash equivalents
                                         -54,770,000 15,651,000 -169,818,000 198,150,000 -57,634,000 55,159,000 13,732,000 23,439,000 33,002,000 -977,000 -75,109,000 93,907,000 24,311,000 -39,826,000   98,876,000 30,150,000   19,339,000    203,598,000    34,299,000 77,061,000 -52,718,000 -8,081,000 -21,497,000 -118,281,000 105,873,000 59,136,000 14,052,000 -23,395,000 -43,078,000 63,417,000 -7,726,000 52,642,000 -24,083,000 43,650,000 -18,528,000 25,621,000 8,480,000 -26,770,000  15,710,000 
          restructuring-related software charges
                                      2,818,000                                                   
          cash paid for acquired businesses, net of cash acquired
                                  55,000 -121,464,000  -79,000  -197,191,000 -10,000      500,000 -106,883,000 -16,062,000    -386,647,000                                   
          changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
                                                                                           
          proceeds from sales of short and long-term marketable securities
                                                                                           
          proceeds from maturities of short and long-term marketable securities
                                                                                           
          net cash from by investing activities
                                                                                           
          net increase in cash, and cash equivalents and restricted cash
                                      -271,768,000 612,881,000 51,029,000                                                   
          cash paid for income taxes, net of refunds received of 4,476 and 815 for the three months ended march 31, 2018 and 2017, respectively
                                        18,313,000                                                   
          non-cash investing activities:
                                                                                           
          cash and cash equivalents at beginning of year
                                                                                           
          cash and cash equivalents at end of year
                                                                                           
          cash paid for income taxes, net of refunds received in the years ended december 31, 2017, 2016 and 2015 of 6,750, 1,664 and 19,374, respectively
                                                                                           
          non-cash financing and investing activities:
                                                                                           
          cash and cash equivalents at beginning of period
                                          324,169,000  289,473,000  238,650,000  333,891,000  201,989,000  559,197,000  231,866,000  181,305,000  156,074,000  145,078,000  80,595,000  91,792,000  35,318,000 
          cash and cash equivalents at end of period
                                          15,651,000 -169,818,000 522,319,000  55,159,000 13,732,000 312,912,000  -977,000 -75,109,000 332,557,000  -39,826,000 5,439,000 248,726,000  30,150,000 39,590,000 165,275,000  -346,000 38,272,000 144,724,000  149,970,000 -11,545,000 217,174,000  77,061,000 -52,718,000 173,224,000  -118,281,000 105,873,000 215,210,000  -23,395,000 -43,078,000 208,495,000  52,642,000 -24,083,000 124,245,000  25,621,000 8,480,000 65,022,000  51,028,000 
          cash paid for income taxes, net of refunds received in the nine months ended september 30, 2017 and 2016 of 5,867 and 1,582, respectively
                                                                                           
          cash paid for income taxes, net of refunds received in the six months ended june 30, 2017 and 2016 of 2,481 and 457, respectively
                                                                                           
          cash paid for income taxes, net of refunds received in the three months ended march 31, 2017 of 0.8 million
                                            41,133,000                                               
          excess tax benefits from stock-based compensation
                                             -2,434,000 -448,000 -1,497,000 -1,135,000 -4,450,000 -2,114,000 -9,609,000 -13,128,000 -8,280,000 -4,297,000 -4,483,000 -15,178,000 -4,649,000 -8,530,000 -5,503,000 -4,119,000 -5,426,000 -2,540,000 -1,635,000 -13,414,000 -1,663,000 -610,000 -1,838,000 -9,012,000 -6,594,000 -9,456,000 -9,750,000 -3,173,000 3,607,000 -713,000 -333,000 -325,000 22,209,000 -751,000 -7,005,000 -3,277,000 32,447,000 -1,100,000 -3,009,000 -7,476,000 52,112,000      
          repayment of acquired debt and capital leases
                                                                                          
          cash paid for income taxes, net of refunds received in the years ended december 31, 2016 and 2015 of 1,664 and 19,374, respectively
                                                                                           
          cash paid for income taxes, net of refunds received in the year ended december 31, 2015 of 19,374
                                                                                           
          convertible note receivable received for divestiture of a business
                                                                                           
          other non-cash items
                                                    443,000                                       
          provision for doubtful accounts
                                                     464,000 1,053,000 377,000 87,000 280,000 -310,000 879,000 320,000 -255,000 -345,000 -86,000 370,000 830,000 782,000 132,000 322,000 -561,000 662,000 292,000 1,153,000 2,466,000 740,000 2,363,000 1,158,000 1,229,000 610,000 383,000 353,000 848,000 944,000 594,000 515,000 397,000      
          non-cash portion of restructuring charges
                                                                                           
          loss on disposal of property and equipment
                                                                                           
          gain from divestiture of a business
                                                                                          
          change in fair value of contingent consideration
                                                                                         
          proceeds from sales and redemptions of short- and long-term marketable securities
                                                                                           
          proceeds from sale of property and equipment
                                                                                           
          payment of contingent consideration related to acquired business
                                                                                          
          cash paid for income taxes
                                                            16,097,000 43,011,000 16,259,000 24,077,000 11,486,000 19,048,000 8,632,000 8,416,000 9,482,000 2,371,000 1,699,000 15,573,000 6,557,000 4,384,000 -1,168,000 7,528,000 10,245,000 1,852,000 2,807,000 2,828,000 4,383,000 1,070,000 763,000 436,000 878,000 1,340,000 1,575,000 276,000 264,000 888,000  
          loss from disposal of property and equipment
                                                      287,000 -177,000 215,000                                   
          proceeds from the sale of property and equipment
                                                      218,000 418,000 166,000  335,000 166,000 260,000  2,000 10,000  47,000 63,000 25,000  14,000 15,000 23,000  28,000 2,000 2,000  2,000 7,000 67,000           
          gain and other activity related to divestiture of a business
                                                                                           
          cash received for acquired businesses, net of cash acquired
                                                                                           
          other non-currents assets and liabilities
                                                       2,442,000 -998,000                                   
          payment of acquired debt and capital leases
                                                       -17,862,000                                   
          net decrease in cash and cash equivalents
                                                        -85,165,000    -36,714,000   38,272,000 -414,473,000   -11,545,000 -14,692,000                       
          gain from disposal of property and equipment
                                                                                           
          gain on divestiture of a business
                                                                                           
          unrealized gain on convertible note receivable
                                                                                           
          accounts payable, accrued expenses and other current liabilities
                                                           17,473,000 7,838,000 4,921,000 44,591,000 15,939,000 -5,798,000 20,452,000 445,000 2,678,000 -8,391,000 -44,000 8,695,000 25,198,000 -13,320,000 13,692,000 17,900,000 -4,022,000 -17,315,000 -3,148,000 7,074,000 -7,179,000 -928,000 -8,318,000 10,456,000 -15,797,000 694,000 -3,136,000      
          accrued restructuring
                                                           -112,000 -111,000 -381,000 -28,000 -725,000 -2,144,000 3,752,000 -148,000   -450,000 -74,000 -48,000 -45,000 -45,000 -347,000 -514,000 -161,000 1,763,000 -4,000 -379,000 -164,000 -696,000 -530,000 -818,000 -678,000 -464,000      
          capitalization of internal-use software costs
                                                           -18,129,000 -16,998,000 -14,283,000 -13,658,000 -13,352,000 -12,911,000 -12,121,000 -10,073,000 -9,815,000 -10,635,000 -9,015,000 -8,913,000 -7,854,000 -6,987,000        -6,301,000 -5,962,000 -4,981,000 -4,113,000 -4,001,000 -3,532,000      
          proceeds from the issuance of common stock under stock option plans
                                                           24,855,000 3,195,000    7,078,000    3,959,000        3,764,000    4,509,000    6,692,000       
          stock-based compensation expense
                                                            22,931,000 21,405,000 22,635,000 25,621,000 20,924,000 18,840,000 15,141,000 11,612,000 15,712,000 18,495,000 18,589,000 20,276,000 19,108,000  13,612,000 13,320,000 15,067,000  14,122,000 16,997,000 11,251,000  16,909,000 17,208,000 16,830,000       
          gain on investments and disposal of property and equipment
                                                            -71,000                               
          loss on divestiture of a business
                                                            -1,188,000                               
          cash paid for acquired businesses, net of cash recevied
                                                                                           
          employee taxes paid related to net share settlement of equity awards
                                                            -17,315,000 -8,124,000 -2,370,000 -2,541,000 -21,655,000 -2,713,000 -2,173,000                         
          capitalization of stock-based compensation, net of impairments
                                                            2,938,000 2,582,000 2,561,000 1,835,000 2,298,000 2,067,000 1,941,000 1,641,000 1,824,000 2,221,000 1,918,000 2,202,000 1,477,000        1,671,000     1,470,000      
          amortization of deferred financing costs
                                                                     50,000 63,000 184,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000 210,000      
          non-cash portion of loss on early extinguishment of debt
                                                                     5,000           2,000 1,000       
          non-cash portion of restructuring charge
                                                                                           
          loss on investments and disposal of property and equipment
                                                               -107,000 -97,000 769,000 -176,000 -113,000 117,000                       
          increase in other investments
                                                                     -500,000                   
          decrease in restricted investments held for security deposits
                                                                 51,000 221,000 330,000 8,000 103,000                
          proceeds from the issuance of common stock under stock option and employee stock purchase plans
                                                                 11,947,000 1,183,000   13,830,000 10,953,000 16,947,000 4,046,000 7,965,000 2,996,000   2,164,000 1,670,000       9,267,000      
          cash paid for interest
                                                                     291,000 1,000   999,000   1,000,000   1,001,000 1,000 1,002,000 1,000 1,001,000 1,000 1,002,000 1,000 1,002,000  
          common stock issued upon conversion of 1% convertible senior notes
                                                                     58,620,000 4,942,000 136,163,000 30,000                  
          common stock returned upon settlement of escrow claims related to prior business acquisitions
                                                                     -305,000 -125,000 -214,000 -213,000 -674,000 -1,500,000 -952,000           
          cash paid for acquisition of businesses, net of cash acquired
                                                              -14,392,000 -291,638,000                           
          proceeds from the issuance of common stock under stock option plans and employee stock purchase plans
                                                              6,066,000                             
          gain on divesture of certain assets
                                                                                         
          proceeds from divesture of certain assets
                                                                                         
          cash paid for acquisition of business, net of cash acquired
                                                                  -375,000 -175,000  -200,000                     
          gains on investments and disposal of property and equipment
                                                                      22,000                     
          losses on investments and disposal of property and equipment
                                                                        19,000                   
          cash paid for acquisition of business
                                                                                          
          excess tax benefit from stock-based compensation
                                                                                           
          payments on capital leases
                                                                                         
          effect of exchange rate changes on cash and cash equivalents
                                                                                           
          common stock and vested stock options issued in connection with acquisitions of businesses
                                                                                           
          gain on investments and loss on disposal of property and equipment
                                                                                           
          repurchase of common stock
                                                                          -34,663,000                 
          capitalization of stock-based compensation as internal-use software
                                                                          1,373,000 1,244,000 1,908,000               
          loss on investments and loss on disposal of property and equipment
                                                                                           
          gains on investments and loss on disposal of property and equipment
                                                                            -434,000    -271,000           
          cash paid for acquisition of a business
                                                                            -5,779,000               
          proceeds from sales and maturities of short- and long-term marketable securities
                                                                                154,466,000           
          non-cash portion of restructuring benefit
                                                                                         
          losses on investments and loss on disposal of property and equipment
                                                                              16,000             
          cash of acquired businesses, net of cash paid
                                                                                           
          decrease in restricted marketable securities held for security deposits
                                                                                           
          capitalization of stock-based compensation as internal-use software, net of impairments
                                                                              1,868,000             
          common stock and vested stock options issued in connection with acquisition of businesses
                                                                                           
          changes in operating assets and liabilities, net of effects of acquisition:
                                                                                           
          cash of acquired business
                                                                                           
          common stock and vested stock options issued in connection with acquisition of business
                                                                                           
          provision for deferred income taxes, net, including release of deferred tax asset valuation allowance in 2005
                                                                                           
          foreign currency losses
                                                                                           
          proceeds from equity offering, net of issuance costs
                                                                                           
          repurchase of 5 1/2% convertible subordinated notes
                                                                                           
          acquisition of equipment through capital leases
                                                                                          
          value of deferred compensation recorded for issuance of deferred stock units and restricted stock
                                                                                           
          adjustments to reconcile net income to net cash from operating activities, net of acquisitions:
                                                                                           
          utilization of tax net operating loss carryforwards
                                                                                  16,540,000 13,437,000 11,701,000       
          gain on investments, loss on disposal of property and equipment and gain on foreign currency
                                                                                           
          changes in operating assets and liabilities, net of acquisitions:
                                                                                           
          purchases of short- and long-term available for sale securities
                                                                                  -102,716,000 -152,831,000 -53,279,000       
          sales and maturities of short- and long-term available for sale securities
                                                                                  93,335,000 104,414,000 51,669,000       
          cash received in business acquisitions, net of transaction costs
                                                                                          
          proceeds from issuance of common stock under stock option and employee stock purchase plans
                                                                                           
          cash from financing activities
                                                                                  5,935,000 14,045,000 14,168,000       
          issuance of common stock and stock options exchanged in business combinations
                                                                                  -7,556,000         
          conversion of 1% convertible senior notes to common stock
                                                                                  105,000 40,000       
          gain on investments, loss on disposal of property and equipment and foreign currency
                                                                                   -41,000 -448,000       
          changes in operating assets and liabilities, net of acquisition:
                                                                                           
          cash received in business acquisition, net of transaction costs
                                                                                    5,435,000       
          issuance of common stock and stock options exchanged in business combination
                                                                                    161,948,000       
          stock-related compensation
                                                                                           
          change in deferred income taxes, net, including release of deferred tax asset valuation allowance in 2005
                                                                                           
          changes in assets and liabilities, net of acquisitions:
                                                                                           
          business acquisitions, net of cash (used) acquired
                                                                                           
          purchases of short and long-term available for sale securities
                                                                                     -116,164,000      
          proceeds from sales and maturities of short and long-term available for sale securities
                                                                                     79,075,000      
          proceeds from sales of property and equipment
                                                                                           
          decrease in restricted cash held for note repurchases
                                                                                           
          proceeds from the issuance of 1% convertible senior notes, net of financing costs
                                                                                           
          repurchase of 51/2% convertible subordinated notes
                                                                                           
          effect of exchange rate translation on cash and cash equivalents
                                                                                           
          common stock and vested common stock options issued in connection with acquisition of a business
                                                                                           
          change in deferred tax assets, net, including release of deferred tax asset valuation allowance
                                                                                           
          utilization of tax net operating loss carryforward
                                                                                           
          loss on investments, disposal of property and equipment and foreign currency
                                                                                           
          changes in operating assets and liabilities:
                                                                                           
          cash acquired in business acquisition
                                                                                           
          payments on repurchase of 51/2% convertible subordinated notes
                                                                                           
          common stock and vested stock options issued and accrued transaction costs for acquisition of a business
                                                                                           
          value of deferred compensation recorded for issuance of deferred stock units
                                                                                           
          adjustments to reconcile net income to net cash from operating activities: depreciation and amortization
                                                                                           
          adjustments to reconcile net income (loss) to net cash from operating activities:
                                                                                           
          equity-related compensation
                                                                                           
          interest income on notes receivable for stock
                                                                                           
          changes in assets and liabilities, net of acquisition:
                                                                                           
          cash acquired through business acquisition
                                                                                           
          purchases of investments
                                                                                           
          proceeds from sales and maturities of investments
                                                                                           
          repayment of notes receivable for stock
                                                                                           
          issuances of common stock in exchange for warrants
                                                                                           
          effects of exchange rate translation on cash and cash equivalents
                                                                                          -1,019,000