Loans and Allowance for Credit Losses on Loans HFI - Schedule of Credit Quality of Loan Portfolio by Year of Origination (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 9,478,129	$ 9,408,783
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	135,052	226,191
2023-2022	192,171	278,121
2022-2021	177,380	157,650
2021-2020	66,211	42,924
2020-2019	35,066	70,707
Prior	122,368	79,652
Revolving Loans Amortized Cost Basis	960,567	865,488
Total	1,688,815	1,720,733
Current and prior-period gross charge-offs, 2024-2023	0	14
Current and prior-period gross charge-offs, -2023-2022	12	7
Current and prior-period gross charge-offs, 2022-2021	2	201
Current and prior-period gross charge-offs, 2021-2020	70	22
Current and prior-period gross charge-offs, 2020-2019	16	0
Current and prior-period gross charge-offs, prior	7	87
Revolving Loans Amortized Cost Basis	52	131
Total	159	462
Commercial and industrial | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	132,257	225,734
2023-2022	189,261	255,921
2022-2021	154,303	151,492
2021-2020	61,545	39,897
2020-2019	32,166	70,302
Prior	115,917	73,415
Revolving Loans Amortized Cost Basis	908,150	839,918
Total	1,593,599	1,656,679
Commercial and industrial | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	2,795	0
2023-2022	2,851	17,947
2022-2021	2,609	3,083
2021-2020	73	0
2020-2019	0	151
Prior	195	108
Revolving Loans Amortized Cost Basis	26,260	7,549
Total	34,783	28,838
Commercial and industrial | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	0	457
2023-2022	59	4,253
2022-2021	20,468	3,075
2021-2020	4,593	3,027
2020-2019	2,900	254
Prior	6,256	6,129
Revolving Loans Amortized Cost Basis	26,157	18,021
Total	60,433	35,216
Construction
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	141,229	179,930
2023-2022	140,951	684,395
2022-2021	386,623	152,739
2021-2020	106,529	54,519
2020-2019	37,272	39,140
Prior	67,147	50,644
Revolving Loans Amortized Cost Basis	199,975	235,946
Total	1,079,726	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	141,229	179,929
2023-2022	140,864	677,387
2022-2021	369,074	148,312
2021-2020	106,230	46,697
2020-2019	28,784	39,140
Prior	66,547	49,954
Revolving Loans Amortized Cost Basis	183,222	208,491
Total	1,035,950	1,349,910
Construction | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	0	1
2023-2022	87	4,659
2022-2021	12,321	2,943
2021-2020	26	1,202
2020-2019	0	0
Prior	600	690
Revolving Loans Amortized Cost Basis	0	12,000
Total	13,034	21,495
Construction | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	0	0
2023-2022	0	2,349
2022-2021	5,228	1,484
2021-2020	273	6,620
2020-2019	8,488	0
Prior	0	0
Revolving Loans Amortized Cost Basis	16,753	15,455
Total	30,742	25,908
Residential real estate: | Multi-family mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	29,685	29,982
2023-2022	5,879	151,495
2022-2021	241,414	223,889
2021-2020	234,327	92,745
2020-2019	52,376	29,933
Prior	71,262	44,551
Revolving Loans Amortized Cost Basis	19,245	31,209
Total	654,188	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	29,685	29,982
2023-2022	5,879	151,495
2022-2021	241,414	223,889
2021-2020	224,347	92,745
2020-2019	52,376	29,933
Prior	70,251	43,479
Revolving Loans Amortized Cost Basis	19,245	31,209
Total	643,197	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	9,980	0
2020-2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	9,980	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	1,011	1,072
Revolving Loans Amortized Cost Basis	0	0
Total	1,011	1,072
Residential real estate: | 1-to-4 family mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	172,027	198,613
2023-2022	171,877	503,193
2022-2021	471,682	403,364
2021-2020	378,065	149,330
2020-2019	139,960	82,595
Prior	278,420	231,457
Revolving Loans Amortized Cost Basis	0	0
Total	1,612,031	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	150	0
Current and prior-period gross charge-offs, 2021-2020	130	4
Current and prior-period gross charge-offs, 2020-2019	0	0
Current and prior-period gross charge-offs, prior	15	24
Revolving Loans Amortized Cost Basis	0	0
Total	295	46
Residential real estate: | 1-to-4 family mortgage | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	171,947	198,537
2023-2022	171,313	500,628
2022-2021	465,317	399,338
2021-2020	371,494	145,484
2020-2019	136,834	81,905
Prior	271,278	226,587
Revolving Loans Amortized Cost Basis	0	0
Total	1,588,183	1,552,479
Residential real estate: | 1-to-4 family mortgage | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	80	76
2023-2022	564	2,565
2022-2021	6,365	4,026
2021-2020	6,571	3,846
2020-2019	3,126	690
Prior	7,142	4,870
Revolving Loans Amortized Cost Basis	0	0
Total	23,848	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	591,049	530,912
Total	591,049	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	73	0
Revolving Loans Amortized Cost Basis	0	0
Total	73	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	589,491	528,439
Total	589,491	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	1,558	2,473
Total	1,558	2,473
Commercial real estate: | Owner-occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	133,073	118,030
2023-2022	112,041	268,798
2022-2021	254,918	233,084
2021-2020	221,182	115,397
2020-2019	109,000	152,060
Prior	405,758	289,659
Revolving Loans Amortized Cost Basis	88,236	55,043
Total	1,324,208	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	133,073	118,030
2023-2022	112,041	261,196
2022-2021	247,259	231,241
2021-2020	218,567	115,397
2020-2019	108,938	151,146
Prior	392,401	281,253
Revolving Loans Amortized Cost Basis	87,183	53,970
Total	1,299,462	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	1,385	1,827
2021-2020	2,600	0
2020-2019	0	154
Prior	7,932	2,617
Revolving Loans Amortized Cost Basis	0	0
Total	11,917	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	6,274	16
2021-2020	15	0
2020-2019	62	760
Prior	5,425	5,789
Revolving Loans Amortized Cost Basis	1,053	1,073
Total	12,829	13,943
Commercial real estate: | Non-owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	100,902	47,026
2023-2022	43,211	474,560
2022-2021	540,476	483,854
2021-2020	464,917	117,429
2020-2019	114,485	178,829
Prior	736,125	598,250
Revolving Loans Amortized Cost Basis	47,920	43,577
Total	2,048,036	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	100,902	47,026
2023-2022	43,211	474,560
2022-2021	535,152	478,878
2021-2020	460,381	117,429
2020-2019	113,393	178,448
Prior	708,997	580,168
Revolving Loans Amortized Cost Basis	47,920	43,577
Total	2,009,956	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	5,324	3,975
2021-2020	4,536	0
2020-2019	1,092	0
Prior	19,406	10,435
Revolving Loans Amortized Cost Basis	0	0
Total	30,358	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	0	0
2020-2019	0	381
Prior	7,722	7,647
Revolving Loans Amortized Cost Basis	0	0
Total	7,722	9,029
Consumer and other
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	113,294	104,927
2023-2022	99,628	92,582
2022-2021	81,346	47,749
2021-2020	41,140	36,747
2020-2019	33,042	25,304
Prior	110,991	97,674
Revolving Loans Amortized Cost Basis	635	6,890
Total	480,076	411,873
Current and prior-period gross charge-offs, 2024-2023	956	1,463
Current and prior-period gross charge-offs, -2023-2022	446	564
Current and prior-period gross charge-offs, 2022-2021	201	139
Current and prior-period gross charge-offs, 2021-2020	233	201
Current and prior-period gross charge-offs, 2020-2019	56	110
Current and prior-period gross charge-offs, prior	244	372
Revolving Loans Amortized Cost Basis	0	2
Total	2,136	2,851
Consumer and other | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	112,563	104,399
2023-2022	97,908	91,557
2022-2021	79,587	45,187
2021-2020	38,215	34,928
2020-2019	30,704	24,040
Prior	105,231	93,833
Revolving Loans Amortized Cost Basis	634	6,890
Total	464,842	400,834
Consumer and other | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	731	528
2023-2022	1,720	1,025
2022-2021	1,759	2,562
2021-2020	2,925	1,819
2020-2019	2,338	1,264
Prior	5,760	3,841
Revolving Loans Amortized Cost Basis	1	0
Total	15,234	11,039
Total consumer type loans
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	285,321	303,540
2023-2022	271,505	595,775
2022-2021	553,028	451,113
2021-2020	419,205	186,077
2020-2019	173,002	107,899
Prior	389,411	329,131
Revolving Loans Amortized Cost Basis	591,684	537,802
Total	2,683,156	2,511,337
Current and prior-period gross charge-offs, 2024-2023	956	1,463
Current and prior-period gross charge-offs, -2023-2022	446	582
Current and prior-period gross charge-offs, 2022-2021	351	139
Current and prior-period gross charge-offs, 2021-2020	363	205
Current and prior-period gross charge-offs, 2020-2019	56	110
Current and prior-period gross charge-offs, prior	332	396
Revolving Loans Amortized Cost Basis	0	2
Total	2,504	2,897
Total consumer type loans | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	284,510	302,936
2023-2022	269,221	592,185
2022-2021	544,904	444,525
2021-2020	409,709	180,412
2020-2019	167,538	105,945
Prior	376,509	320,420
Revolving Loans Amortized Cost Basis	590,125	535,329
Total	2,642,516	2,481,752
Total consumer type loans | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	811	604
2023-2022	2,284	3,590
2022-2021	8,124	6,588
2021-2020	9,496	5,665
2020-2019	5,464	1,954
Prior	12,902	8,711
Revolving Loans Amortized Cost Basis	1,559	2,473
Total	40,640	29,585
Total Commercial Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	539,941	601,159
2023-2022	494,253	1,857,369
2022-2021	1,600,811	1,251,216
2021-2020	1,093,166	423,014
2020-2019	348,199	470,669
Prior	1,402,660	1,062,756
Revolving Loans Amortized Cost Basis	1,315,943	1,231,263
Total	6,794,973	6,897,446
Current and prior-period gross charge-offs, 2024-2023	0	14
Current and prior-period gross charge-offs, -2023-2022	12	7
Current and prior-period gross charge-offs, 2022-2021	2	345
Current and prior-period gross charge-offs, 2021-2020	70	22
Current and prior-period gross charge-offs, 2020-2019	16	0
Current and prior-period gross charge-offs, prior	7	87
Revolving Loans Amortized Cost Basis	144	131
Total	251	606
Total Commercial Loans | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	537,146	600,701
2023-2022	491,256	1,820,559
2022-2021	1,547,202	1,233,812
2021-2020	1,071,070	412,165
2020-2019	335,657	468,969
Prior	1,354,113	1,028,269
Revolving Loans Amortized Cost Basis	1,245,720	1,177,165
Total	6,582,164	6,741,640
Total Commercial Loans | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	2,795	1
2023-2022	2,938	23,903
2022-2021	21,639	11,828
2021-2020	17,215	1,202
2020-2019	1,092	305
Prior	28,133	13,850
Revolving Loans Amortized Cost Basis	26,260	19,549
Total	100,072	70,638
Total Commercial Loans | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2024-2023	0	457
2023-2022	59	12,907
2022-2021	31,970	5,576
2021-2020	4,881	9,647
2020-2019	11,450	1,395
Prior	20,414	20,637
Revolving Loans Amortized Cost Basis	43,963	34,549
Total	$ 112,737	$ 85,168