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Loans and Allowance for Credit Losses on Loans HFI - Schedule of Credit Quality of Loan Portfolio by Year of Origination (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 9,288,909 $ 9,408,783
Commercial and industrial    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 16,449 226,191
2023-2022 206,182 278,121
2022-2021 259,039 157,650
2021-2020 78,655 42,924
2020-2019 39,863 70,707
Prior 135,654 79,652
Revolving Loans Amortized Cost Basis 885,769 865,488
Total 1,621,611 1,720,733
Current and prior-period gross charge-offs, 2024-2023 0 14
Current and prior-period gross charge-offs, -2023-2022 0 7
Current and prior-period gross charge-offs, 2022-2021 0 201
Current and prior-period gross charge-offs, 2021-2020 14 22
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 7 87
Revolving Loans Amortized Cost Basis 22 131
Total 43  
Commercial and industrial | Pass    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 16,449 225,734
2023-2022 202,050 255,921
2022-2021 237,139 151,492
2021-2020 72,725 39,897
2020-2019 36,876 70,302
Prior 129,057 73,415
Revolving Loans Amortized Cost Basis 864,065 839,918
Total 1,558,361 1,656,679
Commercial and industrial | Special Mention    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 3,675 17,947
2022-2021 17,572 3,083
2021-2020 2,913 0
2020-2019 0 151
Prior 247 108
Revolving Loans Amortized Cost Basis 4,521 7,549
Total 28,928 28,838
Commercial and industrial | Classified    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 457
2023-2022 457 4,253
2022-2021 4,328 3,075
2021-2020 3,017 3,027
2020-2019 2,987 254
Prior 6,350 6,129
Revolving Loans Amortized Cost Basis 17,183 18,021
Total 34,322 35,216
Construction    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 39,360 179,930
2023-2022 193,914 684,395
2022-2021 560,584 152,739
2021-2020 129,976 54,519
2020-2019 43,408 39,140
Prior 87,370 50,644
Revolving Loans Amortized Cost Basis 214,271 235,946
Total 1,268,883 1,397,313
Current and prior-period gross charge-offs, 2024-2023 0 0
Current and prior-period gross charge-offs, -2023-2022 0 0
Current and prior-period gross charge-offs, 2022-2021 0 0
Current and prior-period gross charge-offs, 2021-2020 0 0
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 0 0
Revolving Loans Amortized Cost Basis 92 0
Total 92 0
Construction | Pass    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 39,360 179,929
2023-2022 193,203 677,387
2022-2021 551,909 148,312
2021-2020 124,878 46,697
2020-2019 36,531 39,140
Prior 86,713 49,954
Revolving Loans Amortized Cost Basis 187,955 208,491
Total 1,220,549 1,349,910
Construction | Special Mention    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 1
2023-2022 711 4,659
2022-2021 4,689 2,943
2021-2020 2,508 1,202
2020-2019 0 0
Prior 657 690
Revolving Loans Amortized Cost Basis 12,000 12,000
Total 20,565 21,495
Construction | Classified    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 2,349
2022-2021 3,986 1,484
2021-2020 2,590 6,620
2020-2019 6,877 0
Prior 0 0
Revolving Loans Amortized Cost Basis 14,316 15,455
Total 27,769 25,908
Residential real estate: | Multi-family mortgage    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 29,982
2023-2022 29,861 151,495
2022-2021 193,591 223,889
2021-2020 244,770 92,745
2020-2019 54,744 29,933
Prior 69,162 44,551
Revolving Loans Amortized Cost Basis 22,953 31,209
Total 615,081 603,804
Current and prior-period gross charge-offs, 2024-2023 0 0
Current and prior-period gross charge-offs, -2023-2022 0 0
Current and prior-period gross charge-offs, 2022-2021 0 0
Current and prior-period gross charge-offs, 2021-2020 0 0
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Total 0 0
Residential real estate: | Multi-family mortgage | Pass    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 29,982
2023-2022 29,861 151,495
2022-2021 193,591 223,889
2021-2020 244,770 92,745
2020-2019 54,744 29,933
Prior 68,104 43,479
Revolving Loans Amortized Cost Basis 22,953 31,209
Total 614,023 602,732
Residential real estate: | Multi-family mortgage | Special Mention    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 0
2021-2020 0 0
2020-2019 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Total 0 0
Residential real estate: | Multi-family mortgage | Classified    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 0
2021-2020 0 0
2020-2019 0 0
Prior 1,058 1,072
Revolving Loans Amortized Cost Basis 0 0
Total 1,058 1,072
Residential real estate: | 1-to-4 family mortgage    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 43,291 198,613
2023-2022 187,528 503,193
2022-2021 497,670 403,364
2021-2020 397,043 149,330
2020-2019 148,039 82,595
Prior 304,253 231,457
Revolving Loans Amortized Cost Basis 0 0
Total 1,577,824 1,568,552
Current and prior-period gross charge-offs, 2024-2023 0 0
Current and prior-period gross charge-offs, -2023-2022 0 18
Current and prior-period gross charge-offs, 2022-2021 0 0
Current and prior-period gross charge-offs, 2021-2020 0 4
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 0 24
Revolving Loans Amortized Cost Basis 0 0
Total 0 46
Residential real estate: | 1-to-4 family mortgage | Performing    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 43,291 198,537
2023-2022 187,203 500,628
2022-2021 492,643 399,338
2021-2020 393,806 145,484
2020-2019 143,618 81,905
Prior 298,828 226,587
Revolving Loans Amortized Cost Basis 0 0
Total 1,559,389 1,552,479
Residential real estate: | 1-to-4 family mortgage | Nonperforming    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 76
2023-2022 325 2,565
2022-2021 5,027 4,026
2021-2020 3,237 3,846
2020-2019 4,421 690
Prior 5,425 4,870
Revolving Loans Amortized Cost Basis 0 0
Total 18,435 16,073
Residential real estate: | Residential line of credit    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 0
2021-2020 0 0
2020-2019 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 549,306 530,912
Total 549,306 530,912
Current and prior-period gross charge-offs, 2024-2023 0 0
Current and prior-period gross charge-offs, -2023-2022 0 0
Current and prior-period gross charge-offs, 2022-2021 0 0
Current and prior-period gross charge-offs, 2021-2020 0 0
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 0 0
Revolving Loans Amortized Cost Basis 20 0
Total 20 0
Residential real estate: | Residential line of credit | Performing    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 0
2021-2020 0 0
2020-2019 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 547,097 528,439
Total 547,097 528,439
Residential real estate: | Residential line of credit | Nonperforming    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 0
2021-2020 0 0
2020-2019 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 2,209 2,473
Total 2,209 2,473
Commercial real estate: | Owner-occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 24,636 118,030
2023-2022 112,168 268,798
2022-2021 260,941 233,084
2021-2020 233,181 115,397
2020-2019 113,546 152,060
Prior 436,957 289,659
Revolving Loans Amortized Cost Basis 54,578 55,043
Total 1,236,007 1,232,071
Current and prior-period gross charge-offs, 2024-2023 0 0
Current and prior-period gross charge-offs, -2023-2022 0 0
Current and prior-period gross charge-offs, 2022-2021 0 144
Current and prior-period gross charge-offs, 2021-2020 0 0
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Total 0 144
Commercial real estate: | Owner-occupied | Pass    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 24,636 118,030
2023-2022 112,168 261,196
2022-2021 253,377 231,241
2021-2020 231,354 115,397
2020-2019 113,481 151,146
Prior 428,182 281,253
Revolving Loans Amortized Cost Basis 53,516 53,970
Total 1,216,714 1,212,233
Commercial real estate: | Owner-occupied | Special Mention    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 1,297
2022-2021 1,283 1,827
2021-2020 1,811 0
2020-2019 0 154
Prior 2,547 2,617
Revolving Loans Amortized Cost Basis 0 0
Total 5,641 5,895
Commercial real estate: | Owner-occupied | Classified    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 6,305
2022-2021 6,281 16
2021-2020 16 0
2020-2019 65 760
Prior 6,228 5,789
Revolving Loans Amortized Cost Basis 1,062 1,073
Total 13,652 13,943
Commercial real estate: | Non-owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 3,755 47,026
2023-2022 45,516 474,560
2022-2021 533,649 483,854
2021-2020 473,517 117,429
2020-2019 122,699 178,829
Prior 769,300 598,250
Revolving Loans Amortized Cost Basis 43,090 43,577
Total 1,991,526 1,943,525
Current and prior-period gross charge-offs, 2024-2023 0 0
Current and prior-period gross charge-offs, -2023-2022 0 0
Current and prior-period gross charge-offs, 2022-2021 0 0
Current and prior-period gross charge-offs, 2021-2020 0 0
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Total 0 0
Commercial real estate: | Non-owner occupied | Pass    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 3,755 47,026
2023-2022 45,516 474,560
2022-2021 533,649 478,878
2021-2020 468,553 117,429
2020-2019 122,699 178,448
Prior 750,943 580,168
Revolving Loans Amortized Cost Basis 43,090 43,577
Total 1,968,205 1,920,086
Commercial real estate: | Non-owner occupied | Special Mention    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 3,975
2021-2020 3,966 0
2020-2019 0 0
Prior 83 10,435
Revolving Loans Amortized Cost Basis 0 0
Total 4,049 14,410
Commercial real estate: | Non-owner occupied | Classified    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 0
2023-2022 0 0
2022-2021 0 1,001
2021-2020 998 0
2020-2019 0 381
Prior 18,274 7,647
Revolving Loans Amortized Cost Basis 0 0
Total 19,272 9,029
Consumer and other    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 25,887 104,927
2023-2022 109,574 92,582
2022-2021 88,221 47,749
2021-2020 44,966 36,747
2020-2019 35,264 25,304
Prior 118,910 97,674
Revolving Loans Amortized Cost Basis 5,849 6,890
Total 428,671 411,873
Current and prior-period gross charge-offs, 2024-2023 155 1,463
Current and prior-period gross charge-offs, -2023-2022 344 564
Current and prior-period gross charge-offs, 2022-2021 31 139
Current and prior-period gross charge-offs, 2021-2020 96 201
Current and prior-period gross charge-offs, 2020-2019 36 110
Current and prior-period gross charge-offs, prior 110 372
Revolving Loans Amortized Cost Basis 0 2
Total 772 2,851
Consumer and other | Performing    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 25,887 104,399
2023-2022 109,013 91,557
2022-2021 87,312 45,187
2021-2020 42,673 34,928
2020-2019 33,415 24,040
Prior 114,071 93,833
Revolving Loans Amortized Cost Basis 5,849 6,890
Total 418,220 400,834
Consumer and other | Nonperforming    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 528
2023-2022 561 1,025
2022-2021 909 2,562
2021-2020 2,293 1,819
2020-2019 1,849 1,264
Prior 4,839 3,841
Revolving Loans Amortized Cost Basis 0 0
Total 10,451 11,039
Total consumer type loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 69,178 303,540
2023-2022 297,102 595,775
2022-2021 585,891 451,113
2021-2020 442,009 186,077
2020-2019 183,303 107,899
Prior 423,163 329,131
Revolving Loans Amortized Cost Basis 555,155 537,802
Total 2,555,801 2,511,337
Current and prior-period gross charge-offs, 2024-2023 155 1,463
Current and prior-period gross charge-offs, -2023-2022 344 582
Current and prior-period gross charge-offs, 2022-2021 31 139
Current and prior-period gross charge-offs, 2021-2020 96 205
Current and prior-period gross charge-offs, 2020-2019 36 110
Current and prior-period gross charge-offs, prior 110 396
Revolving Loans Amortized Cost Basis 20 2
Total 792 2,897
Total consumer type loans | Performing    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 69,178 302,936
2023-2022 296,216 592,185
2022-2021 579,955 444,525
2021-2020 436,479 180,412
2020-2019 177,033 105,945
Prior 412,899 320,420
Revolving Loans Amortized Cost Basis 552,946 535,329
Total 2,524,706 2,481,752
Total consumer type loans | Nonperforming    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 604
2023-2022 886 3,590
2022-2021 5,936 6,588
2021-2020 5,530 5,665
2020-2019 6,270 1,954
Prior 10,264 8,711
Revolving Loans Amortized Cost Basis 2,209 2,473
Total 31,095 29,585
Total Commercial Loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 84,200 601,159
2023-2022 587,641 1,857,369
2022-2021 1,807,804 1,251,216
2021-2020 1,160,099 423,014
2020-2019 374,260 470,669
Prior 1,498,443 1,062,756
Revolving Loans Amortized Cost Basis 1,220,661 1,231,263
Total 6,733,108 6,897,446
Current and prior-period gross charge-offs, 2024-2023 0 14
Current and prior-period gross charge-offs, -2023-2022 0 7
Current and prior-period gross charge-offs, 2022-2021 0 345
Current and prior-period gross charge-offs, 2021-2020 14 22
Current and prior-period gross charge-offs, 2020-2019 0 0
Current and prior-period gross charge-offs, prior 7 87
Revolving Loans Amortized Cost Basis 114 131
Total 135 606
Total Commercial Loans | Pass    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 84,200 600,701
2023-2022 582,798 1,820,559
2022-2021 1,769,665 1,233,812
2021-2020 1,142,280 412,165
2020-2019 364,331 468,969
Prior 1,462,999 1,028,269
Revolving Loans Amortized Cost Basis 1,171,579 1,177,165
Total 6,577,852 6,741,640
Total Commercial Loans | Special Mention    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 1
2023-2022 4,386 23,903
2022-2021 23,544 11,828
2021-2020 11,198 1,202
2020-2019 0 305
Prior 3,534 13,850
Revolving Loans Amortized Cost Basis 16,521 19,549
Total 59,183 70,638
Total Commercial Loans | Classified    
Financing Receivable, Allowance for Credit Loss [Line Items]    
2024-2023 0 457
2023-2022 457 12,907
2022-2021 14,595 5,576
2021-2020 6,621 9,647
2020-2019 9,929 1,395
Prior 31,910 20,637
Revolving Loans Amortized Cost Basis 32,561 34,549
Total $ 96,073 $ 85,168