7Baggers

Columbia Banking System Quarterly Cash Flow Statements Chart

Quarterly
 | 
Annual
 
 Stock-Based Compensation  
 Operating Cash Flow  
 Investing Cash Flow  
 Financing Cash Flow  
20200930 20201231 20210331 20210630 20210930 20211231 20220331 20220630 20220930 20221231 20230331 20230630 20230930 20231231 20240331 20240630 20240930 20241231 20250331 20250630 -38.9716.6272.2127.78183.36238.95294.53350.11Milllion

Columbia Banking System Quarterly Cash Flow Statements Table

Quarterly
 | 
Annual
 
Unit: USD2025-06-30 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 2015-03-31 2014-06-30 2014-03-31 2013-03-31 2012-06-30 2012-03-31 2011-09-30 2010-09-30 2010-06-30 2010-03-31 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 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-06-30 2002-03-31 
                                                                               
  cash flows from operating activities:                                                                             
  net income152,423,000 86,609,000 143,269,000 146,182,000 120,144,000 124,080,000 93,531,000 135,845,000 133,377,000 -14,038,000 68,906,000 64,942,000 58,808,000 57,522,000 42,911,000 53,017,000 55,039,000 51,853,000 58,300,000 44,734,000 36,582,000 14,628,000 46,129,000 50,727,000 51,724,000 45,871,000 44,748,000 46,415,000 41,749,000 39,970,000 15,728,000 40,769,000 27,132,000 29,199,000 30,718,000 27,484,000 25,405,000 21,259,000 24,361,000 21,227,000 19,844,000 12,176,000 11,899,000 8,902,000 18,872,000 5,204,000 5,056,000 7,916,000 -1,502,000 -5,530,000 1,512,000 1,814,000 -8,759,000 1,936,000 10,977,000 7,298,000 9,256,000 8,544,000 7,283,000 8,341,000 8,335,000 7,239,000 8,188,000 8,583,000 7,952,000 6,798,000 6,298,000 6,465,000 5,483,000 5,414,000 5,151,000 5,431,000 4,895,000 4,765,000 4,431,000 3,154,000 -428,000 
  adjustments to reconcile net income to net cash from operating activities:                                                                             
  accretion of investment discounts-23,356,000 -13,727,000  -19,598,000 -22,092,000 -17,693,000                                                                        
  gain on sale of investment securities-1,000 -4,000 -10,000 -3,000 1,000 -12,000                                                                        
  benefit from credit losses29,449,000 27,403,000 28,199,000 28,769,000 31,820,000 17,136,000  36,737,000 16,014,000 105,539,000         -4,700,000 7,400,000 33,500,000 41,500,000                                                        
  change in cash surrender value of bank-owned life insurance-5,304,000 -5,269,000 -4,906,000 -4,675,000 -4,830,000 -4,672,000                                                                        
  depreciation, amortization and accretion32,892,000 35,027,000 36,227,000 36,522,000 37,158,000 39,962,000  39,298,000 44,068,000 19,043,000 13,047,000 13,372,000 13,164,000 9,435,000 11,785,000 4,327,000 5,623,000 1,433,000 437,000 4,074,000 -2,769,000 13,151,000 8,063,000 8,852,000 9,116,000 8,182,000 7,164,000 9,019,000 9,170,000 7,618,000 9,618,000 7,515,000 7,894,000 6,074,000 6,746,000 8,898,000 8,100,000 10,798,000 7,735,000 8,085,000 8,972,000 13,015,000 14,337,000 16,141,000 -4,288,000 7,420,000 -218,000 2,903,000 1,949,000 1,762,000 1,673,000 1,657,000 2,026,000    1,564,000                     
  gain on sale of premises and equipment24,000 -3,276,000 -173,000 -107,000 -2,445,000 -183,000 -4,034,000 -26,794,000 -339,000 -305,000                                                                    
  additions to residential mortgage servicing rights carried at fair value-2,077,000 -1,429,000 -2,128,000 -1,547,000 -1,540,000 -1,237,000 -920,000 -1,658,000 -1,168,000 -1,601,000                                                                    
  change in fair value of residential mortgage servicing rights carried at fair value4,877,000 4,124,000 -4,311,000 9,667,000 1,945,000 36,000  -507,000 7,039,000 7,818,000                                                                    
  stock-based compensation5,061,000 11,186,000 5,302,000 5,216,000 5,486,000 4,422,000 4,756,000 4,338,000 3,335,000 5,644,000                                                                    
  net increase in equity and other investments-968,000 -11,745,000 439,000 -503,000 307,000 -1,773,000                                                                        
  (gain) loss on equity securities-410,000 -1,702,000       697,000 -2,416,000                                                                    
  gain on sale of loans and leases-3,848,000 -2,700,000  -3,665,000 -194,000 -1,605,000    -2,996,000                                                                    
  change in fair value of loans held for sale272,000 -889,000 987,000 -690,000 -127,000 -189,000 -777,000 598,000 602,000 -82,000 -48,000 46,000 -27,000 198,000 33,000 161,000 56,000 89,000                                                            
  origination of loans held for sale-163,759,000 -136,084,000 -175,046,000 -161,094,000 -140,875,000 -86,903,000 -87,033,000 -103,333,000 -119,476,000 -131,726,000                                                                    
  proceeds from sales of loans held for sale178,237,000 143,679,000 169,688,000 154,242,000 132,286,000 71,990,000 116,873,000 226,959,000 103,228,000 155,574,000 11,463,000 17,676,000 39,322,000 56,700,000 74,636,000 69,398,000 101,469,000 107,320,000 132,857,000 144,341,000 139,716,000 66,216,000 73,168,000 63,065,000 39,008,000 21,374,000 31,757,000 37,801,000 37,297,000 29,007,000 36,366,000 32,344,000 30,934,000 33,896,000 31,337,000 34,228,000 23,563,000 20,002,000                                        
  change in other assets and liabilities:                                                                             
  net decrease (increase) in other assets-40,608,000 65,293,000                                                                            
  net increase in other liabilities-56,109,000 -74,484,000 85,342,000 -171,308,000 4,282,000 79,351,000 -121,101,000 80,306,000 65,874,000 -119,989,000                                                                    
  net cash from operating activities106,795,000 122,012,000 255,848,000 67,220,000 150,290,000 185,508,000 92,371,000 350,110,000 266,326,000 -38,967,000 76,967,000 62,154,000 99,187,000 62,376,000 45,964,000 61,659,000 68,370,000 59,072,000 48,525,000 60,660,000 17,742,000 65,365,000 49,934,000 56,303,000 46,038,000 52,472,000 65,958,000 56,788,000 70,960,000 43,495,000 17,345,000 45,397,000 29,802,000 35,981,000 27,367,000 44,829,000 44,341,000 29,310,000 26,956,000 27,851,000 35,517,000 13,678,000 39,002,000 35,383,000 27,683,000 43,297,000 9,760,000 28,422,000 13,049,000 15,403,000 8,344,000 15,716,000 3,649,000 11,523,000 13,477,000 22,419,000 11,955,000 11,385,000 5,748,000 12,927,000 10,605,000 11,764,000 3,855,000 18,064,000 17,395,000 3,401,000 5,152,000 15,526,000 7,515,000 10,337,000 2,164,000  25,077,000 -6,629,000 7,634,000   
  cash flows from investing activities:                                                                             
  purchases of investment securities available for sale  -36,105,000 -31,376,000 -2,130,000 -5,317,000 -966,000 -700,000 -919,233,000                                                                    
  proceeds from investment securities available for sale181,724,000 189,810,000 167,011,000 147,743,000 127,157,000 110,458,000 142,651,000 182,390,000 126,208,000 1,243,601,000                                                                    
  purchases of restricted equity securities-110,555,000 -27,046,000 -58,501,000 -74,250,000 -11,250,000 -52,751,000 -18,000,000 -32,000,000 -188,066,000                                                                    
  redemption of restricted equity securities74,475,000 51,770,000 24,751,000 74,250,000 74,250,000 42,001,000 108,000,000 20,001,000 90,695,000                                                                    
  net change in loans and leases-67,007,000 33,864,000 -237,555,000 178,232,000 -193,682,000 -263,625,000 -343,785,000 -410,054,000 -521,961,000 -59,389,000                                                                    
  proceeds from sales of loans and leases3,425,000 4,077,000 30,635,000 2,738,000 93,327,000 18,980,000 46,617,000 265,708,000 415,437,000 20,502,000                                                                    
  purchases of premises and equipment, net of proceeds from sales-21,761,000 -241,000                                                                            
  proceeds from bank-owned life insurance death benefits1,894,000 299,000 1,839,000 660,000 2,145,000 1,160,000                                                                        
  purchase of bank-owned life insurance-2,700,000                                                                            
  other1,170,000 412,000 1,267,000 964,000 762,000 381,000 543,000 128,000 266,000 74,000                                                    -24,000 -24,000 -22,000 -25,000 -28,000 -16,000 -151,000 16,000 17,000 16,000 17,000 16,000 16,000 17,000 17,000 16,000 
  net cash from investing activities-484,185,000 250,245,000 -122,295,000 322,678,000 -8,137,000 -77,675,000  231,942,000 8,502,000 461,313,000 163,807,000 -106,249,000 -318,015,000 -135,233,000 -424,921,000 -554,275,000 -711,449,000 -667,715,000 -621,596,000 -503,565,000 -896,857,000 103,233,000 -405,309,000 -589,202,000 78,640,000 50,421,000 -87,380,000 -363,219,000 -150,563,000 95,079,000 16,950,000 -13,996,000 -134,206,000 -68,237,000 73,850,000 -235,763,000 -323,116,000 -63,524,000 97,328,000 -72,118,000 -26,947,000 -80,468,000 -15,779,000 30,394,000 186,844,000 51,287,000 39,006,000 262,835,000 -62,144,000 44,272,000 20,529,000 -11,479,000 42,773,000 38,455,000 -34,443,000 -61,101,000 -63,481,000 -9,810,000 -115,779,000 -48,303,000 14,240,000 -55,542,000 -85,586,000 -52,534,000 12,527,000 -59,878,000 -61,849,000  -143,911,000         
  cash flows from financing activities:                                                                             
  net increase in deposit liabilities-475,037,000 496,962,000    99,140,000 -17,161,000   -672,737,000                                                                    
  net decrease in securities sold under agreements to repurchase-951,000 -44,241,000 52,794,000 -14,027,000 -15,713,000 -38,546,000                                                                        
  proceeds from borrowings3,475,000,000 2,050,000,000 1,000,000,000 3,900,000,000 5,250,000,000 2,250,000,000 3,905,000,000 5,945,000,000                                                                    
  repayment of borrowings-2,675,000,000 -2,600,000,000 -1,550,000,000 -250,000,000 -3,950,000,000 -5,285,000,000 -4,515,000,000 -3,605,000,000 -3,181,522,000                                                                    
  net proceeds from issuance of common stock under employee stock purchase plan1,384,000                                                                            
  dividends paid on common stock-75,298,000 -75,170,000 -75,077,000 -75,076,000 -75,071,000 -74,997,000 -74,910,000 -74,903,000 -74,866,000 -45,582,000                                                                    
  repurchase and retirement of common stock-1,860,000 -6,741,000 -81,000 -20,000 -767,000 -4,847,000 -176,000 -148,000 -742,000 -5,216,000                                                                    
  net cash from financing activities246,854,000 -177,806,000 -366,320,000 -347,707,000 -274,439,000 -69,250,000  -1,585,573,000 -502,797,000 1,918,196,000 -266,708,000 -52,426,000 -339,452,000 220,619,000 306,196,000 558,559,000 590,126,000 839,362,000 296,592,000 275,457,000 1,761,052,000 -200,515,000 304,443,000 572,845,000 -78,092,000 -168,407,000 56,847,000 285,054,000 49,486,000 -187,451,000 -14,456,000 79,245,000 133,631,000 -9,161,000 -69,043,000 204,610,000 268,232,000 47,843,000 -63,853,000 31,940,000 48,658,000 809,000 -44,867,000 31,391,000 -136,564,000 -65,443,000 141,711,000 -289,860,000 143,280,000 -14,460,000 -56,085,000 -18,911,000 -58,646,000 -57,965,000 50,606,000 28,202,000 64,482,000 -17,626,000 113,237,000 34,240,000 -54,703,000 82,509,000 77,932,000 45,106,000 -17,407,000 71,791,000 64,802,000 59,987,000 48,424,000 67,641,000 44,505,000   -39,363,000 55,519,000   
  net increase in cash and cash equivalents-130,536,000 194,451,000 -232,767,000 42,191,000 -132,286,000 38,583,000 -241,161,000 -1,003,521,000 -227,969,000 2,340,542,000                                                                    
  cash and cash equivalents, beginning of period1,878,255,000 2,162,534,000 1,294,643,000                                                                    
  cash and cash equivalents, end of period-130,536,000 2,072,706,000 -232,767,000 42,191,000 -132,286,000 2,201,117,000 -241,161,000 -1,003,521,000 -227,969,000 3,635,185,000                                                                    
  supplemental disclosures of cash flow information:                                                                             
  cash paid during the period for:                                                                             
  interest                                                                             
  income taxes                                                                             
  supplemental disclosure of noncash investing and financing activities:                                                                             
  changes in unrealized gains and losses on investment securities available for sale, net of taxes                                                                             
  changes in unrealized gains and losses on junior subordinated debentures carried at fair value, net of taxes                                                                             
  deferred income tax expense                                                                      3,334,000   1,343,000 227,000   
  amortization of investment (discounts) premiums      -19,730,000 -21,018,000 -19,286,000 -7,668,000                                                                    
  gain on equity securities    -325,000 1,565,000                                                                        
  (gain) loss on sale of loans and leases      -2,485,000 -2,775,000                                                                      
  net increase in other assets    -10,711,000 -38,767,000 2,022,000 -12,113,000 37,332,000 -51,404,000                                                                    
  change in premises and equipment  -15,637,000 -7,659,000 -6,470,000 -5,899,000 -3,367,000 47,567,000 -26,000 -3,486,000                                                                    
  proceeds from sale of mortgage servicing rights      -149,000                                                                       
  cash received in the merger      274,587,000                                                                    
  net decrease in federal funds purchased      -14,000,000                                                                    
  net proceeds from issuance of common stock                                                                            
  net decrease in deposit liabilities   -8,584,000                                                                          
  gain on sales of investment securities                                                                             
  provision (recapture) for credit losses               -5,500,000 -800,000                                                            
  change in cash surrender value of bank owned life insurance      -4,478,000 -8,492,000 -2,501,000 -491,000                                                                    
  depreciation, amortization, and accretion                                                                             
  change in fair value residential mortgage servicing rights carried at fair value                                                                             
  purchases of bank owned life insurance                                                                             
  proceeds from bank owned life insurance death benefits      1,779,000 -285,000 1,277,000 2,028,000                                                                    
  net cash received from sale of umpqua investments, inc.                                                                             
  net cash provided (used) in investing activities                                                                             
  net increase in securities sold under agreements to repurchase        23,867,000 -107,747,000                                                                    
  net cash (used) provided by financing activities                                                                             
  net decrease in equity and other investments                                                                             
  loss on equity securities                                                                             
  net decrease (increase) in equity and other investments         131,000                                                                    
  cash flows from operating activities                                                                             
  adjustments to reconcile net income to net cash from operating activities                                                                             
  stock-based compensation expense          4,099,000 4,149,000 4,115,000 3,795,000 4,091,000 3,899,000 3,908,000 3,028,000 2,819,000 3,009,000 2,737,000 2,172,000 2,444,000 2,299,000 2,243,000 2,285,000 2,123,000 2,148,000 2,019,000 2,064,000 1,830,000 1,801,000 1,756,000 2,358,000 1,383,000 1,075,000 1,371,000 1,180,000 862,000 544,000 680,000 551,000 458,000 450,000 400,000 349,000 355,000 350,000 282,000 273,000 302,000 309,000 301,000 355,000 384,000 264,000 250,000 222,000 238,000                   
  investment securities gain                -36,000 -16,425,000 -249,000             -7,000 -572,000 -229,000 -373,000 -721,000 -296,000 -223,000 -370,000                                    
  net realized gain on sale of premises and equipment, loans held for investment and oppo              -232,000 11,000                                                              
  net realized gain on sale and valuation adjustments of oreo                 -100,000 30,000 -82,000                                                          
  gain on bank owned life insurance death benefit          -355,000   -135,000 -209,000     -76,000                                                      
  originations of loans held for sale          -11,071,000 -15,255,000 -38,742,000 -51,395,000 -73,088,000 -67,735,000 -88,528,000 -107,104,000 -134,423,000 -139,945,000 -158,818,000 -58,199,000 -75,850,000 -65,912,000 -47,180,000 -21,542,000 -30,331,000 -36,303,000 -39,758,000 -27,553,000 -34,330,000 -33,228,000 -34,607,000 -31,295,000 -33,822,000 -29,940,000 -27,531,000 -19,174,000                                        
  deferred income tax                                                                             
  net change in:                                                                             
  interest receivable          -3,256,000 -4,497,000 -1,215,000 79,000 2,104,000 -539,000 320,000 2,164,000 1,887,000 2,431,000 -14,572,000 2,262,000 1,664,000 -1,625,000 -43,000 -1,512,000 3,153,000 -5,371,000 -1,310,000 -914,000 3,109,000 -5,307,000 489,000 -1,271,000 1,532,000 -1,868,000 -434,000 -1,427,000 -1,286,000 1,417,000 -1,394,000 -2,053,000 477,000 -750,000 -1,444,000 3,726,000 1,069,000 -600,000 -711,000 914,000 258,000 1,327,000 -691,000 1,911,000 422,000 1,670,000 -1,274,000                     
  interest payable          1,564,000 -97,000 20,000 -2,000 114,000 -3,000 -543,000 494,000 -534,000 -180,000 -2,544,000 2,325,000 -976,000 454,000 1,154,000 -454,000 654,000 -488,000 452,000 152,000 -56,000 44,000 -9,000 -9,000 -10,000 -19,000 -55,000 -79,000 -7,000 -13,000 -40,000 -127,000 -148,000 -225,000 -166,000 -314,000 -145,000 -607,000 -359,000 -1,199,000 55,000 -2,407,000 -3,388,000 1,204,000 1,408,000 3,447,000                     
  other assets          -7,871,000 -20,419,000 -141,000 -7,060,000 -8,946,000 3,178,000 1,058,000 11,525,000 5,457,000 39,923,000 -30,778,000 -63,141,000 8,376,000 -15,356,000 -11,240,000 -5,244,000 4,775,000 -8,966,000 3,837,000 2,530,000 -28,830,000 9,346,000 -3,823,000 -2,164,000 -8,203,000 104,000 -4,087,000 -3,731,000 -4,531,000 -2,652,000 5,714,000 3,192,000 -6,258,000 -1,166,000 4,599,000 8,061,000 -13,783,000 6,493,000 -3,062,000 4,860,000 -5,717,000 -5,857,000 -5,410,000 2,358,000 -3,789,000 -164,000 3,723,000                     
  other liabilities          3,985,000 600,000 22,331,000 2,157,000 -11,780,000 -4,055,000 -4,073,000 -10,627,000 1,088,000 -44,797,000 31,775,000 44,725,000 -15,398,000 21,146,000 6,381,000 2,179,000 1,017,000 7,679,000 12,997,000 -15,014,000 -7,930,000 6,606,000 -5,389,000 -3,841,000 -4,671,000 3,607,000 14,428,000 -4,619,000 3,680,000 -1,940,000 -649,000 -11,739,000 3,458,000 -8,403,000 3,653,000 10,726,000 5,038,000 6,289,000 -29,000 -5,894,000 3,335,000 4,520,000 1,799,000 -10,993,000 3,243,000 12,279,000 -6,728,000                     
  cash flows from investing activities                                                                             
  loans originated, net of principal collected          7,984,000 -368,916,000 -561,169,000 -139,777,000 65,912,000 285,950,000 -12,543,000 -164,856,000 319,081,000 87,626,000 -828,888,000 -197,362,000 13,724,000 -97,940,000 -127,234,000 -80,407,000 170,451,000 -67,897,000                    75,505,000                              
  investment in low income housing tax credit partnerships          -1,621,000 -958,000 -229,000 -42,000 -302,000                                                               
  purchases of:                                                                             
  debt securities available for sale          -747,000 -1,997,000 -1,000 -183,802,000 -719,655,000 -881,066,000 -918,658,000 -608,854,000 -1,121,716,000 -737,715,000 -221,764,000 -37,472,000 -547,762,000 -594,728,000 -50,695,000 -3,710,000 -359,533,000 -390,440,000 -188,115,000 -27,497,000                                                
  debt securities held to maturity          -97,658,000 -145,131,000 -89,457,000                                                              
  loans held for investment              -103,189,000 -102,162,000 -74,383,000     -8,036,000 -49,039,000                                                    
  premises and equipment          -1,653,000 -1,918,000 -1,822,000 -1,817,000 -1,791,000 -1,247,000 -2,282,000 -805,000 -1,182,000 -3,048,000 -2,840,000 -1,650,000 -2,614,000 -2,293,000 -1,752,000 -1,788,000 -3,075,000 -3,242,000 -2,912,000 -2,099,000 -2,115,000 -2,433,000 -1,611,000 -336,000 -1,815,000 -1,506,000 -754,000 -445,000 -4,032,000 -3,453,000 -4,930,000 -3,624,000 -4,948,000 -6,682,000 -8,231,000                                 
  fhlb stock          -61,400,000       -2,000,000 -51,240,000 -83,000,000 -73,560,000 -59,960,000 -57,280,000                                                    
  proceeds from:                                                                             
  sales of debt securities available for sale              62,305,000   592,000 194,105,000 175,586,000 83,968,000 12,569,000 19,761,000                                                
  sales of equity securities                                                                           
  principal repayments and maturities of securities available for sale                              83,404,000 68,998,000 76,103,000 55,369,000 84,541,000 75,860,000 71,395,000 52,422,000 54,451,000 47,258,000 36,530,000 64,758,000 58,863,000 49,654,000 40,824,000                                 
  principal repayments and maturities of debt securities held to maturity          38,883,000 63,234,000 47,455,000 38,873,000 64,925,000 33,942,000                                                              
  sales of premises and equipment and loans held for investment          28,000 9,399,000 302,000 27,272,000 11,593,000 -9,000       899,000 7,711,000 13,000 11,000 1,074,000 8,720,000 2,515,000 3,721,000 265,000 4,024,000 1,240,000 6,893,000 2,252,000 2,760,000 2,720,000 1,911,000                                        
  redemption of fhlb stock          23,800,000    7,463,000    6,000,000 24,000,000 61,080,000 64,560,000 73,680,000 55,760,000 57,640,000                                                    
  sales of oreo and oppo            132,000 40,000 681,000 303,000 50,000 73,000 610,000 5,673,000 150,000                                                    
  bank owned life insurance death benefit          847,000    671,000 1,050,000                                                      
  termination of cash flow hedging instrument                                                                             
  net cash received in business combinations                                                                             
  consolidated statements of cash flows, continued                                                                             
  cash flows from financing activities                                                                             
  net increase in deposits          -1,229,691,000 -15,417,000 -342,103,000 289,282,000 319,132,000 607,967,000 577,966,000 897,604,000 269,602,000 468,783,000 2,318,723,000 128,059,000 -170,935,000    -145,742,000 220,042,000 -11,425,000 -136,466,000 71,461,000 269,258,000 -16,355,000 29,433,000 1,623,000 384,636,000 76,406,000 158,120,000 150,243,000 -59,347,000 84,941,000 4,454,000 -34,628,000 49,916,000           28,453,000 20,267,000 55,784,000 36,299,000 57,675,000 3,286,000 57,317,000 -29,841,000 -12,900,000 12,847,000 94,763,000 28,932,000 6,065,000 27,106,000 16,892,000 68,167,000 58,752,000 25,782,000 -23,543,000 53,348,000 1,886,000 36,434,000 3,015,000 
  net increase in sweep repurchase agreements                      39,948,000                                                       
  employee stock purchase plan          1,093,000 1,017,000 -1,000 1,253,000 1,098,000                                                            
  fhlb advances          2,742,000,000 186,010,000 10,000 10,000 10,000 10,000   50,000,000 1,281,000,000 2,075,000,000 1,839,000,000 1,499,000,000 1,432,000,000                                                    
  frb borrowings          210,000,000 10,000 10,000 10,000 30,000    40,000,000 182,010,000                                                      
  other borrowings                  4,222,000 5,000,000                                                      
  payments for:                                                                             
  common stock dividends          -23,438,000 -23,448,000 -23,473,000 -23,955,000 -23,868,000 -19,678,000 -20,134,000 -20,110,000 -19,879,000 -19,880,000 -19,890,000 -35,860,000 -20,089,000 -20,311,000 -30,761,000 -30,750,000 -29,291,000 -19,044,000 -19,036,000 -16,069,000 -12,842,000 -12,845,000 -12,829,000 -12,792,000 -22,636,000 -22,637,000 -21,461,000 -21,943,000 -17,236,000 -12,629,000 -6,154,000 -3,971,000 -8,728,000 -14,623,000 -2,370,000                                 
  repayment of subordinated debentures                                                                             
  purchase of treasury stock                  -20,000,000 -5,454,000 -23,517,000                                                      
  purchase and retirement of common stock          -14,000 -38,000 -13,000 -3,924,000 -40,000 -29,000 -76,000 -3,995,000 -24,000 -16,000 -8,000 -2,474,000 -27,000 -19,000 -314,000 -2,432,000 -17,000 -33,000 -52,000 -2,575,000 -53,000 -31,000 -176,000 -2,039,000 -12,000 -21,000 -59,000 -1,033,000 -781,000 -79,000 -522,000                                     
  increase in cash and cash equivalents          -25,934,000 -96,521,000 -558,280,000 147,762,000 -72,761,000 65,943,000 -52,953,000 230,719,000 -276,479,000 -167,448,000   -50,932,000    35,425,000    19,839,000 110,646,000 29,227,000 -41,417,000 32,174,000 13,676,000 -10,543,000 13,629,000 60,431,000 -12,327,000 57,228,000 -65,981,000 -21,644,000 97,168,000 77,963,000 29,141,000   94,185,000      29,640,000   -16,051,000 3,206,000 -1,136,000 -29,858,000 38,731,000 -3,799,000 10,636,000 12,515,000 15,314,000 8,105,000 -4,059,000 -87,972,000 78,609,000 17,444,000 -43,692,000 -34,212,000     
  cash and cash equivalents at beginning of period          824,714,000 653,766,000 247,673,000 277,587,000 342,533,000 224,238,000 175,302,000 188,170,000 179,561,000 513,926,000 294,289,000 305,074,000 88,730,000  93,975,000  104,344,000  100,406,000  54,656,000  50,634,000 85,483,000 66,989,000 
  cash and cash equivalents at end of period          -25,934,000 -96,521,000 -558,280,000 972,476,000 -72,761,000 65,943,000 -52,953,000 884,485,000 -276,479,000 -167,448,000 881,937,000 215,756,000 -50,932,000 39,946,000 46,586,000 212,073,000 35,425,000 -21,377,000 -30,117,000 293,656,000 19,839,000 110,646,000 29,227,000 182,821,000 32,174,000 13,676,000 -10,543,000 188,931,000 248,601,000 -12,327,000 236,789,000 447,945,000 -21,644,000 391,457,000 77,963,000 29,141,000 190,477,000 306,471,000 94,185,000 45,215,000 61,518,000  -12,224,000 -7,987,000 123,615,000  12,956,000 -16,051,000 107,550,000  -29,858,000 38,731,000 96,607,000  12,515,000 15,314,000 62,761,000  -87,972,000 78,609,000 68,078,000 -43,692,000 -34,212,000 43,940,000 84,598,000 20,380,000 63,832,000 
  supplemental information:                                                                             
  interest paid          11,878,000 5,352,000   2,399,000 2,003,000 2,529,000 1,553,000 2,718,000   6,150,000                                                        
  income taxes paid, net of refunds          24,037,000 33,559,000   15,440,000 16,648,000 28,475,000 -1,000 10,542,000   12,000                                                        
  non-cash investing and financing activities:                                                                             
  transfer of debt securities available for sale to debt securities held to maturity                                                                           
  transfer of loans held for investment to loans held for sale                                                                             
  loans transferred to oreo                                                                            
  common stock issued in connection with acquisition                                                                             
  premises and equipment expenditures incurred but not yet paid          20,000    -24,000   43,000 1,000   238,000                                                        
  change in dividends payable on unvested shares included in other liabilities                -73,000 -49,000 184,000   157,000                                                        
  recapture for credit losses           5,250,000 2,100,000 -7,800,000                                                                
  net realized gain on sale of premises and equipment and loans held for investment           -3,646,000                                                                  
  net realized loss on sale and valuation adjustments of oreo           33,000              209,000                                                    
  principal repayments and maturities of debt securities available for sale           194,079,000 197,249,000 221,718,000  200,880,000 205,028,000 180,380,000  141,695,000 130,431,000 134,641,000  105,354,000 81,249,000 100,876,000  92,273,000 137,040,000 82,643,000                                                
  consolidated statements of cash flows                                                                             
  columbia banking system, inc.                                                                             
  net decrease in sweep repurchase agreements           -21,616,000 26,137,000 -41,801,000  -30,954,000 32,370,000 -35,235,000  -24,513,000 22,227,000 -35,185,000   27,208,000 -38,076,000  15,968,000 21,982,000 -54,812,000  -24,962,000 18,981,000 -33,908,000  -20,029,000 15,379,000 -25,860,000 -8,228,000                                       
  repayment of fhlb advances           -179,010,000 -10,000 -10,000  -10,000    -150,000,000 -600,000,000 -1,527,000,000  -1,842,000,000 -1,394,000,000 -1,441,000,000                                          -257,750,000 -160,700,000 -72,600,000 16,500,000 -7,133,000 -101,571,000 -45,166,000   
  repayment of frb borrowings           -10,000 -10,000 -10,000      -45,000,000 -177,010,000                                                       
  non-cash investing and financing activities                                                                             
  change in dividends payable included in other liabilities           207,000                                                                  
  net realized (gain) loss on sale of premises and equipment and loans held for investment             -1,253,000          -6,121,000 -667,000 1,000                                                    
  net realized (gain) loss on sale and valuation adjustments of oreo                       -95,000                                                      
  repayment of other borrowings                                    -8,248,000                                      
  net realized (gain) loss on sale of premises and equipment, loans held for investment and oppo                 6,000                                                            
  sales of premises and equipment                  820,000 1,196,000 901,000 31,000                                                        
  net realized gain on sale of premises and equipment and oppo                                                                             
  exercise of stock options and employee stock purchase plan                  1,083,000                                                          
  repayment of junior subordinated debentures                          -8,248,000                                                
  repayment of term repurchase agreement                                                                             
  net realized (gain) loss on sale of premises and equipment and oppo                     -25,000                                                        
  exercise of stock options                     945,000 1,132,000 15,000 878,000 1,121,000 17,000 719,000 825,000 10,000 1,145,000 45,000 701,000 5,000 598,000 428,000 20,000 405,000 326,000 6,000 308,000 382,000                                 
  decrease in cash and cash equivalents                     -31,917,000   46,586,000 -65,514,000   -30,117,000 -48,877,000                                             -885,000   
  benefit from loan and lease losses                      1,614,000 299,000 218,000 1,362,000 1,789,000 3,153,000 3,975,000 5,852,000 3,327,000 -648,000 3,177,000 2,775,000 18,000 1,866,000 3,640,000 5,254,000 1,209,000       9,453,000 13,500,000 15,000,000 16,500,000 21,000,000 11,000,000 13,250,000 10,500,000 15,350,000 2,076,000 1,407,000 1,231,000 329,000 638,000    215,000               
  gain on sale of merchant card services portfolio                                                                            
  termination of fdic loss share agreements charge                                                                           
  fdic reimbursement on loss-sharing asset                              26,000 49,000 210,000 410,000 258,000 1,138,000 3,443,000 539,000 3,119,000 19,509,000 14,804,000 6,108,000                                 
  sale of merchant card services portfolio                                                                            
  payment to fdic to terminate loss-sharing agreements                                                                           
  payments to fdic related to loss-sharing asset                              -210,000 -777,000 -230,000 -14,000 -611,000 -479,000 -2,217,000                                     
  columbia banking system, inc.consolidated statements of cash flows, continued                                                                             
  cash settlement of acquired equity awards                                                                             
  share-based consideration issued in business combinations                                                                             
  investment securities (gain) loss                                                                            
  ___________________                                                                             
  revised from amounts previously reported to correct an immaterial misclassification of 47.0 million of purchases of loans held for investment within loans originated, net of principal collected, for the nine months ended september 30, 2018. there were no changes to net cash flows from operating, investing or financing activities as a result of this change. revised from amounts previously reported to correct an immaterial misclassification of a 25.0 million repayment of the term repurchase agreement within net increase in sweep repurchase agreements for the nine months ended september 30, 2018. there were no changes to net cash flows from operating, investing or financing activities as a result of this change.                                                                             
  net decrease in deposits                        -157,377,000 -89,027,000                   -80,795,000  -86,218,000 -258,862,000                              
  __________ revised from amounts previously reported to correct an immaterial misclassification of a 25.0 million repayment of the term repurchase agreement within net decrease in sweep repurchase agreements for the six months ended june 30, 2018. there were no changes to net cash flows from operating, investing or financing activities as a result of this change.                                                                             
  investment securities gains                         -1,847,000    -22,000                                                
  __________ revised from amounts previously reported to correct an immaterial misclassification of a 25.0 million repayment of the term repurchase agreement within net decrease in sweep repurchase agreements for the three months ended march 31, 2018. there were no changes to net cash flows from operating, investing or financing activities as a result of this change.                                                                             
  net realized loss on sale and valuation adjustments of other real estate owned                          -81,000 496,000 668,000 135,000  268,000 17,000 204,000                                            
  federal home loan bank stock                          -61,320,000 -46,400,000 -44,640,000 -45,080,000 -5,200,000 -55,440,000 -31,400,000 -1,800,000 -15,399,000 -31,880,000 -10,520,000                                        
  redemption of federal home loan bank stock                          52,000,000 43,720,000 42,320,000 43,880,000 6,884,000 11,320,000 49,680,000 31,040,000 4,200,000 20,920,000 23,960,000 13,001,000                                        
  sales of other real estate and other personal property owned                          1,393,000 47,000 3,759,000 2,062,000 689,000 182,000 444,000 1,275,000 2,313,000 2,569,000 1,950,000 1,326,000 5,067,000 2,196,000 8,102,000 2,019,000 4,070,000 7,829,000 2,360,000                                 
  federal home loan bank advances                          1,533,000,000 1,160,000,000 1,116,000,000 1,127,000,000 130,000,000 1,386,000,000 785,000,000 45,000,000 385,000,000 797,000,000 165,000,000 624,000,000 581,000,000 587,000,000 100,000                                   
  federal reserve bank borrowings                          5,000,000        50,000 50,000                                   
  repayment of federal home loan bank advances                          -1,300,000,000 -1,093,000,000 -1,058,000,000 -1,097,000,000 -96,000,000 -283,000,000 -1,242,000,000 -776,000,000 -105,000,000 -523,000,000 -599,000,000 -227,000,000 -804,000,000 -477,000,000 -617,000,000 -100,000 -1,517,000 -4,210,000 -28,046,000          -874,538,000 -633,527,000 -635,801,000 -860,305,000 -819,045,000 -834,629,000 -766,600,000 -742,685,000 -417,935,000 -271,075,000 -375,305,000 -272,010,000 -219,540,000           
  repayment of federal reserve bank borrowings                          -5,000,000        -50,000 -50,000                                   
  preferred stock dividends                                  -40,000 -40,000 -38,000 -39,000 -31,000 -25,000 -12,000                                     
  excess tax benefit from stock-based compensation                                                   471,000 -92,000 -138,000 9,000 -17,000 -22,000 -41,000                   
  cash paid during the year for:                                                                             
  income tax                                                                             
  loans transferred to other real estate owned                                     105,000 4,692,000 2,090,000 5,751,000 4,114,000 5,697,000 6,092,000 8,265,000 12,247,000 11,711,000 3,308,000 10,750,000 6,510,000 2,738,000                           
  investment securities losses                           62,000                                                  
  net realized (gain) loss on sale of premises and equipment, loans held for investment and other assets                           1,000 771,000 -630,000  -13,000                                              
  loans originated and acquired, net of principal collected                             17,688,000 30,904,000 -88,290,000 -194,605,000 -21,936,000 48,768,000 -152,655,000 -234,203,000 -64,056,000 -12,443,000 -137,097,000 -64,065,000 -71,815,000 -46,548,000 -16,814,000 -41,591,000 17,339,000   31,256,000 43,220,000 34,309,000 -23,903,000 41,888,000 23,206,000 -19,489,000 -69,749,000 -67,840,000 -25,549,000 -124,961,000 -55,138,000 -32,017,000 -29,616,000 -30,269,000 -53,495,000 -864,000 -72,790,000 -77,364,000 -93,053,000 -34,688,000 1,267,000 -53,424,000 -6,808,000 27,822,000 48,359,000 25,159,000 1,507,000 -6,769,000 
  net realized gain on sale of premises and equipment, loans held for investment and other assets                                                                             
  net realized gain on sale and valuation adjustments of other real estate owned                                                                             
  securities available for sale                              -224,701,000 -16,597,000 -5,351,000 -108,958,000 -67,223,000 -205,682,000 -201,234,000 -95,686,000 -11,362,000 -12,017,000 -10,787,000 -84,673,000 -57,169,000 -30,177,000 -24,712,000                                 
  sales of securities available for sale                                  3,342,000 37,390,000 44,534,000 38,876,000 57,243,000 24,263,000 6,441,000 3,023,000 3,845,000                                  
  net decrease in repurchase agreements                                                                             
  cash paid for interest                                     1,059,000 1,132,000 969,000 999,000 1,319,000 2,540,000 2,797,000 3,870,000 5,276,000 5,730,000 6,158,000 7,189,000 7,358,000 9,325,000 10,593,000 15,151,000 17,437,000 16,902,000 19,468,000 17,071,000 17,689,000 15,155,000 14,698,000 15,397,000 12,634,000 10,439,000 9,019,000 8,424,000     4,431,000 4,277,000 4,488,000 4,769,000 5,812,000 6,078,000 8,112,000 8,994,000 
  cash paid for income tax                                     6,350,000 13,000 8,190,000 10,000 5,500,000       500,000 21,000 1,264,000                         
  net realized loss on sale of premises and equipment, loans held for investment and other assets                                 55,000                                            
  net realized (gain) loss on sale and valuation adjustments of other real estate owned                                  528,000 -59,000 70,000 90,000                                        
  net realized gain on sale of branches                                                                             
  net cash paid in branch sale                                                                             
  net increase in repurchase agreements                                                                             
  exercise of warrants                                                                             
  net realized (gain) loss on sale of other assets                                   16,000 64,000 106,000 -306,000 445,000 8,000     -2,000                                
  net realized gain on sale of other real estate owned                                      -1,736,000 -1,313,000 -1,659,000 -2,787,000 -3,323,000 -2,954,000 -1,614,000 -1,883,000                                
  write-down on other real estate owned                                      197,000 974,000 1,580,000 158,000 2,685,000 3,127,000 833,000 2,793,000 964,000 829,000                              
  loans held for sale                                      -2,429,000 -750,000 735,000 1,675,000 -22,000 82,000 -1,913,000    2,272,000 1,475,000 -1,783,000 926,000 433,000 2,621,000 -1,462,000 -2,209,000 743,000                     
  sales of loans held for investments and other assets                                      7,745,000                                       
  benefit from loan and lease losses on noncovered and covered loans                                                                             
  sales of other assets                                       758,000 337,000 287,000                                    
  sales of covered other real estate owned                                       2,531,000 3,103,000 6,438,000 10,356,000 8,025,000 3,523,000                                 
  acquisition of intangible assets                                                                             
  net cash paid in acquisition                                                                             
  other investing activities                                                                             
  repayment of long-term subordinated debt                                                                             
  share-based consideration issued for acquisitions                                                                            
  provision (recapture) for loan and lease losses on noncovered and covered loans                                        1,922,000                                     
  net realized gain on sale of other assets                                         -80,000 -20,000 -21,000 -10,000   -14,000  169,000 -15,000                           
  capital improvements on other real estate properties                                          79,000 -90,000 -258,000                                 
  assets acquired in business combinations                                                                             
  liabilities assumed in business combinations                                                                             
  provision (recapture) for loan and lease losses and losses on covered loans                                         -20,000                                    
  non-cash investing activities                                                                             
  benefit from loan and lease losses and losses on covered loans                                          15,438,000 20,185,000 933,000                                 
  net realized gain on sale of securities                                          -62,000  -58,000    36,000 -882,000                       
  gain on termination of cash flow hedging instruments                                            -335,000 -385,000 -743,000 -596,000 -701,000 -663,000                           
  disposal of premises and equipment                                            39,000                                 
  decrease in small business administration secured borrowings                                                                            
  net cash acquired in business combinations                                            208,782,000 10,376,000 145,534,000                              
  payment for:                                                                             
  assets acquired in fdic-assisted acquisitions                                                                             
  liabilities assumed in fdic-assisted acquisitions                                                                             
  net realized gain on fdic assisted bank acquisitions                                            -1,830,000  -9,818,000                              
  deferred income tax benefit                                               -125,000 -1,558,000 -2,566,000 -359,000 -2,091,000 -11,889,000 -209,000 -220,000 -1,413,000 -234,000 -723,000 -237,000   -4,185,000 -138,000               
  fdic loss-sharing asset                                                                             
  issuance of common stock                                                                             
  repurchase of preferred stock and common stock warrant                                                                             
  repurchase of common stock                                                                           
  net decrease in other borrowings                                            -25,735,000                                 
  assets acquired in fdic assisted acquisitions                                            228,766,000                                 
  liabilities assumed in fdic assisted acquisitions                                            435,718,000                                 
  fdic loss-sharing asset, net of cash received                                                                             
  net realized gain on federal deposit insurance corporation assisted bank acquisitions                                                                             
  deferred federal income tax                                                                             
  purchases of securities available for sale                                             -7,585,000 -56,469,000 -111,022,000 -16,834,000 -27,117,000 -2,153,000 -9,995,000    -500,000    -74,541,000    -3,062,000 -2,846,000  -105,097,000 -25,504,000 -3,046,000  -5,224,000 -948,000 -6,033,000 -2,627,000 -13,579,000 
  proceeds from sales of securities available for sale                                             69,328,000    2,154,000 51,358,000     39,234,000 3,865,000 1,618,000 5,569,000         
  proceeds from principal repayments and maturities of securities available for sale                                             23,328,000 20,879,000 21,911,000 17,567,000 19,093,000 13,218,000 9,324,000 10,223,000 21,560,000 8,545,000 9,613,000 9,479,000 19,238,000 10,316,000                   
  increase in small business administration secured borrowings                                                                             
  purchases of premises and equipment                                             -2,856,000 -1,044,000 -10,000 -806,000 -3,485,000 -1,178,000 -1,641,000 -1,819,000 -5,594,000 -1,425,000 -1,588,000 -1,312,000 -1,919,000 -772,000 -658,000 -1,396,000 -1,303,000 -1,098,000 -860,000 -1,506,000 -1,379,000 -1,006,000 -468,000 -574,000 -1,073,000 -270,000 -531,000 -561,000 -514,000 -314,000 -1,431,000 -2,573,000 
  proceeds from disposal of premises and equipment                                             11,000 6,000 54,000 1,000   810,000 1,000 102,000 12,000 4,000 16,000 8,000 188,000 -80,000 118,000 66,000 22,000 -268,000 39,000 929,000 80,000 10,161,000 16,000 41,000 13,000 199,000 31,000 19,000 32,000 626,000 6,000 
  proceeds from sales of covered other real estate owned                                             1,305,000 3,397,000 5,950,000                              
  proceeds from sales of other real estate and other personal property owned                                             753,000 1,829,000 1,361,000 1,234,000 2,274,000 1,297,000 745,000                         
  proceeds from federal home loan bank and federal reserve bank borrowings                                                 295,000,000 414,000,000                           
  repayment from federal home loan bank and federal reserve bank borrowings                                             -6,040,000 -38,000 -30,159,000  -317,000,000 -431,000,000                           
  cash dividends paid                                             -1,311,000 -1,354,000 -1,243,000 -1,145,000 -1,144,000 -1,624,000                           
  proceeds from issuance of common stock                                                39,000 210,000 46,000 461,000 315,000 1,084,000 738,000 1,112,000 95,000 891,000 101,000 556,000 513,000 920,000 -735,000 1,450,000 948,000 545,000 422,000 514,000 407,000 1,909,000 395,000 358,000 612,000 282,000 350,000 393,000 
  proceeds from exercise of stock options                                             342,000 19,000 490,000                              
  deferred income taxes                                                                             
  capital improvements on oreo properties                                              -250,000 -329,000                              
  net increase in other borrowings                                              173,000 -86,000 51,000 -275,000 74,000    260,000 4,853,000   146,000                   
  net realized loss on sale of other real estate owned                                               145,000                              
  increase(decrease) in cash and cash equivalents                                               1,397,000   -27,212,000                           
  write-down of other real estate owned                                                                             
  impairment charge on investment securities                                                   1,024,000                          
  purchase of fhlb stock                                                    2,475,000 -819,000 -4,834,000                       
  proceeds from termination of cash flow hedging instruments                                                   7,000 8,093,000                       
  additions to other real estate owned                                                                             
  proceeds from federal home loan bank advances                                                    293,000,000 618,000,000 873,268,000 638,922,000 718,376,000 809,305,000 825,945,000 848,529,000 655,500,000 856,835,000 512,385,000 306,150,000 263,630,000 315,010,000 278,840,000  192,700,000 56,100,000  8,900,000 98,500,000   
  repayment from federal home loan bank advances                                                    -321,000,000                         
  proceeds from federal reserve bank borrowings                                                                             
  repayments of federal reserve bank borrowings                                                                             
  net increase in repurchase agreement borrowings                                                     25,000,000   50,000,000                   
  proceeds from exercise of common stock options                                                                             
  improvements and other changes to other real estate owned                                                                             
  proceeds from repurchase agreement borrowings                                                                            
  net increase(decrease) in deposits                                                  -37,745,000 26,330,000 -43,103,000                         
  net realized gain on sale of other real estate and fixed assets                                                                             
  gain on terminated cash flow hedging instruments                                                                             
  proceeds from maturities of securities held to maturity                                                       328,000 250,000 375,000 -14,155,000   250,000    925,000 328,000 195,000 759,000 718,000 170,000 160,000 500,000 
  acquisition of mt. rainier and town center, net of cash acquired                                                       73,000                      
  proceeds from sales of federal reserve bank stock                                                                             
  repayments of federal home loan bank and federal reserve bank borrowings                                                                             
  repayment of repurchase agreement borrowings                                                                             
  net increase(decrease) in other borrowings                                                                             
  proceeds from issuance of preferred stock                                                                             
  cash dividends paid on common stock                                                   -1,270,000 -3,086,000 -3,076,000 -3,059,000 -3,042,000 -3,044,000 -2,747,000 -2,416,000 -2,408,000 -2,406,000 -2,240,000 -2,063,000 -1,900,000 -1,730,000 -1,410,000 -1,092,000 -1,090,000 -998,000 -950,000 -672,000 -671,000 -669,000     
  cash and cash equivalents at beginning of year                                                                             
  cash and cash equivalents at end of year                                                                             
  loans foreclosed and transferred to other real estate owned or other personal property owned                                                                             
  transfer of securities from held to maturity to available for sale                                                                             
  depreciation, amortization & accretion                                                      1,708,000    1,542,000    1,402,000               
  net realized (gain) loss on sale of other real estate and fixed assets                                                      -46,000                       
  purchase of securities available for sale                                                      -76,907,000    -800,000    -23,675,000               
  proceeds from sale of other real estate owned                                                      204,000                       
  cash paid for income taxes                                                      150,000 3,440,000 3,940,000 5,670,000 880,000 4,070,000 1,845,000 7,410,000 1,250,000 2,800,000 3,547,000     1,496,000 2,152,000 2,136,000 1,497,000 2,673,000 1,256,000 304,000 
  tax benefit associated with stock options                                                               1,523,000 -549,000 -126,000 -73,000           
  gain on sale of other real estate owned and other personal property owned                                                                             
  net realized gain on sale of assets                                                            65,000        -12,000 -14,000 27,000  -6,000     
  stock dividends from federal home loan bank stock                                                               1,000 215,000 -259,000  -62,000 -62,000 -61,000  -103,000 -101,000 -128,000 -139,000 -135,000 
  proceeds from sale of securities available for sale                                                                             
  proceeds from sale of federal home loan bank and federal reserve bank stock                                                                             
  purchase of federal home loan bank stock                                                                             
  proceeds from sale of other real estate owned and other personal property owned                                                                             
  net decrease in repurchase agreement borrowings                                                                            
  investment in affordable housing partnerships                                                                             
  operating activities                                                                             
  net realized gains on sale of assets                                                        -6,000 -4,000 2,000    -136,000               
  investing activities                                                                             
  financing activities                                                                             
  net decrease other borrowings                                                                             
  decrease (increase) in loans held for sale                                                          -2,066,000    113,000               
  increase in interest receivable                                                          -1,288,000   448,000 -318,000 -1,211,000 -53,000 -283,000 -542,000 -997,000 -1,900,000 693,000 -738,000    -631,000   
  increase in interest payable                                                          515,000 263,000 -317,000 384,000 414,000 124,000 -79,000 415,000 164,000           
  net changes in other assets and liabilities                                                          -838,000 1,528,000 -285,000 3,264,000 -6,355,000 4,037,000 -881,000 -2,818,000 1,336,000 2,456,000 -4,758,000 5,633,000 -2,740,000 -3,676,000 6,519,000 -4,139,000 -1,725,000   
  deferred income tax (benefit) expense                                                                  -1,893,000 -755,000 4,957,000   614,000      
  (gains) losses on other real estate owned and other personal property owned                                                                             
  decrease in loans held for sale                                                                          1,660,000   
  proceeds from maturities of securities available for sale                                                           8,212,000 63,162,000 6,750,000 32,020,000 460,000 1,659,000 1,778,000 1,597,000  34,000 11,000 511,000  11,000 3,092,000 18,000 45,000 85,000 
  proceeds from sale of federal home loan bank stock                                                                             
  purchase of subsidiary, net of cash acquired                                                                             
  proceeds from sale of real estate owned and other personal property owned                                                                       99,000 1,529,000 246,000 662,000   
  noncash investing and financing activities:                                                                             
  loans foreclosed and transferred to real estate owned or other personal property owned                                                                       136,000 400,000 226,000 2,939,000   
  issuance of stock in acquisition                                                                             
  fair value of assets acquired in acquisition                                                                             
  fair value of liabilities assumed in acquisition                                                                             
  benefit from loan losses                                                            650,000    245,000 370,000 890,000 445,000 250,000 300,000 250,000 1,000,000 1,600,000   
  deferred loan fees, net of amortization                                                                             
  stock based compensation expense                                                            248,000 133,000 195,000               
  tax benefit associated with stock compensation plan                                                            -1,612,000 455,000 275,000               
  gains on sale of real estate owned and other personal property owned                                                                 -5,000    -16,000  -16,000 -13,000   
  gains on sale of investment securities                                                                             
  depreciation and amortization                                                            4,015,000    2,069,000 2,424,000 2,493,000  2,264,000 2,173,000 2,025,000  2,466,000 2,311,000 2,535,000   
  increase in loans held for sale                                                            128,000    7,696,000 -5,195,000 -3,186,000  1,514,000 3,059,000 -5,098,000       
  decrease in interest receivable                                                                             
  purchases of federal home loan bank stock                                                                -1,000             
  proceeds from sales of federal home loan bank stock                                                                            
  proceeds from sales of real estate and other personal property owned                                                               -1,000 4,000 685,000  193,000 219,000 469,000       
  proceeds from other borrowings                                                                -190,000    1,000,000       
  supplemental disclosures of noncash investing and financing activities:                                                                             
  purchase of investment in affordable housing partnership                                                                             
  interest rate floor valuation adjustment                                                                             
  proceeds from maturities of mortgage-backed securities available for sale                                                              6,617,000 10,100,000 12,873,000 14,290,000 15,387,000  16,646,000 25,670,000 22,573,000  71,805,000 56,442,000 49,678,000 10,720,000 6,377,000 
  purchases of mortgage-backed securities available for sale                                                                    -20,769,000 -10,239,000  -124,449,000 -16,764,000 -133,410,000   
  purchase of equipment under capital lease                                                                             
  gains on real estate owned and other personal property owned                                                                             
  purchase of mortgage-backed securities available for sale                                                              -73,068,000              -89,679,000 
  repayments of other borrowings                                                              -2,500,000               
  excess tax benefit associated with exercise of stock options                                                              49,000               
  (gains) losses on real estate owned and other personal property owned                                                                             
  proceeds from sales of mortgage-backed securities available for sale                                                                      13,993,000       
  net realized (gain) loss on sale of assets                                                                48,000 -144,000 -71,000        -5,000   
  finance lease obligation related to buildings sale-leasebacks                                                                             
  receivable of proceeds related to sale of buildings                                                                             
  (gains) losses on sale of real estate owned and other personal property owned                                                                             
  stock dividends from fhlb stock                                                                             
  proceeds from maturities of securities afs                                                                             
  purchase of securities afs                                                                             
  proceeds from sales of mortgage-backed securities afs                                                                             
  proceeds from maturities of mortgage-backed securities afs                                                                             
  purchase of mortgage-backed securities afs                                                                             
  net cash used by investing activities                                                                      -29,225,000 -98,514,000   -64,038,000   
  proceeds from fhlb advances                                                                             
  deferred gain on sale of building                                                                             
  decrease in interest payable                                                                    -153,000 -20,000 -124,000 -226,000 -447,000 -317,000   
  losses (gains) on sale of real estate owned and other personal property owned                                                                             
  adjustments to reconcile net income to net cash provided (used) by operating activities:                                                                             
  losses (gains) on real estate owned and other personal property owned                                                                             
  decrease (increase) in interest receivable                                                                             
  net cash provided (used) by operating activities                                                                             
  purchases of securities held to maturity                                                                             
  proceeds from trust preferred obligations                                                                             
  payment of trust preferred placement fee                                                                             
  net cash provided (used) by financing activities                                                                           -7,265,000 99,394,000 
  net cash provided (used) by investing activities                                                                             
  net realized (gains) losses on sale of assets                                                                             
  fhlb stock dividends                                                                             
  tax benefits from exercise of stock options                                                                             
  loans foreclosed and transferred to real estate owned and other personal property owned                                                                             
  proceeds from sale of real estate owned                                                                           263,000 87,000 
  net increase in federal home loan bank short term advances                                                                             
  proceeds from long term federal home loan bank advances                                                                             
  repayment of long term federal home loan bank advances                                                                             
  net increase in federal home loan bank advances                                                                            95,970,000 
  loans foreclosed and transferred to real estate owned                                                                            126,000 

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