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, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 12,297,600	$ 9,602,384
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	264,598	196,869
2024-2023	292,085	185,277
2023-2022	252,775	156,882
2022-2021	187,366	61,161
2021-2020	59,006	31,679
Prior	223,254	112,452
Revolving Loans Amortized Cost Basis	876,021	946,893
Total	2,155,105	1,691,213
Current and prior-period gross charge-offs, 2025-2024	0	0
Current and prior-period gross charge-offs, -2024-2023	0	116
Current and prior-period gross charge-offs, 2023-2022	54	950
Current and prior-period gross charge-offs, 2022-2021	0	506
Current and prior-period gross charge-offs, 2021-2020	0	1,234
Current and prior-period gross charge-offs, prior	2,413	7
Revolving Loans Amortized Cost Basis	604	8,267
Total	3,071	11,080
Commercial and industrial | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	262,123	194,185
2024-2023	287,681	182,677
2023-2022	240,254	130,148
2022-2021	144,729	56,460
2021-2020	57,647	29,735
Prior	203,087	104,236
Revolving Loans Amortized Cost Basis	861,567	909,398
Total	2,057,088	1,606,839
Commercial and industrial | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	2,023	2,684
2024-2023	2,205	2,425
2023-2022	5,311	7,609
2022-2021	13,784	277
2021-2020	1,075	285
Prior	15,697	2,015
Revolving Loans Amortized Cost Basis	5,996	24,345
Total	46,091	39,640
Commercial and industrial | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	452	0
2024-2023	2,199	175
2023-2022	7,210	19,125
2022-2021	28,853	4,424
2021-2020	284	1,659
Prior	4,470	6,201
Revolving Loans Amortized Cost Basis	8,458	13,150
Total	51,926	44,734
Construction
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	251,643	190,214
2024-2023	234,974	116,209
2023-2022	83,886	372,462
2022-2021	296,645	99,904
2021-2020	124,935	35,961
Prior	203,218	54,675
Revolving Loans Amortized Cost Basis	91	218,307
Total	1,195,392	1,087,732
Current and prior-period gross charge-offs, 2025-2024	0	0
Current and prior-period gross charge-offs, -2024-2023	0	0
Current and prior-period gross charge-offs, 2023-2022	0	122
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, prior	0	0
Revolving Loans Amortized Cost Basis	399	0
Total	399	122
Construction | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	251,643	190,058
2024-2023	233,754	116,122
2023-2022	77,666	349,716
2022-2021	260,663	99,225
2021-2020	114,563	27,616
Prior	179,489	54,099
Revolving Loans Amortized Cost Basis	91	199,596
Total	1,117,869	1,036,432
Construction | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	156
2024-2023	1,067	87
2023-2022	3,304	15,432
2022-2021	17,698	389
2021-2020	10,129	10
Prior	4,162	576
Revolving Loans Amortized Cost Basis	0	0
Total	36,360	16,650
Construction | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	153	0
2023-2022	2,916	7,314
2022-2021	18,284	290
2021-2020	243	8,335
Prior	19,567	0
Revolving Loans Amortized Cost Basis	0	18,711
Total	41,163	34,650
Residential real estate: | Multi-family mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	36,254	40,076
2024-2023	36,045	3,800
2023-2022	38,514	232,415
2022-2021	246,805	232,995
2021-2020	216,831	51,948
Prior	161,975	70,652
Revolving Loans Amortized Cost Basis	0	21,883
Total	736,424	653,769
Current and prior-period gross charge-offs, 2025-2024	0	0
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, 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]
2025-2024	36,254	40,076
2024-2023	36,045	3,800
2023-2022	38,514	232,415
2022-2021	246,213	223,076
2021-2020	208,116	51,948
Prior	161,957	69,652
Revolving Loans Amortized Cost Basis	0	21,883
Total	727,099	642,850
Residential real estate: | Multi-family mortgage | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	0
2023-2022	0	0
2022-2021	0	0
2021-2020	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]
2025-2024	0	0
2024-2023	0	0
2023-2022	0	0
2022-2021	592	9,919
2021-2020	8,715	0
Prior	18	1,000
Revolving Loans Amortized Cost Basis	0	0
Total	9,325	10,919
Residential real estate: | 1-to-4 family mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	271,461	223,547
2024-2023	230,142	166,336
2023-2022	171,725	450,626
2022-2021	438,861	366,545
2021-2020	353,825	133,866
Prior	386,612	275,834
Revolving Loans Amortized Cost Basis	0	0
Total	1,852,626	1,616,754
Current and prior-period gross charge-offs, 2025-2024	0	10
Current and prior-period gross charge-offs, -2024-2023	0	54
Current and prior-period gross charge-offs, 2023-2022	4	150
Current and prior-period gross charge-offs, 2022-2021	0	130
Current and prior-period gross charge-offs, 2021-2020	0	67
Current and prior-period gross charge-offs, prior	754	28
Revolving Loans Amortized Cost Basis	0	0
Total	758	439
Residential real estate: | 1-to-4 family mortgage | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	271,131	223,520
2024-2023	229,222	165,395
2023-2022	169,347	443,372
2022-2021	430,061	360,188
2021-2020	347,851	129,674
Prior	375,569	266,661
Revolving Loans Amortized Cost Basis	0	0
Total	1,823,181	1,588,810
Residential real estate: | 1-to-4 family mortgage | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	330	27
2024-2023	920	941
2023-2022	2,378	7,254
2022-2021	8,800	6,357
2021-2020	5,974	4,192
Prior	11,043	9,173
Revolving Loans Amortized Cost Basis	0	0
Total	29,445	27,944
Residential real estate: | Residential line of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	0
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	707,303	602,475
Total	707,303	602,475
Current and prior-period gross charge-offs, 2025-2024	0	0
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, prior	0	0
Revolving Loans Amortized Cost Basis	0	73
Total	0	73
Residential real estate: | Residential line of credit | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	0
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	704,961	600,581
Total	704,961	600,581
Residential real estate: | Residential line of credit | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	0
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	2,342	1,894
Total	2,342	1,894
Commercial real estate: | Owner-occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	258,439	185,416
2024-2023	320,834	103,060
2023-2022	221,177	254,743
2022-2021	365,140	218,615
2021-2020	297,349	102,641
Prior	580,948	407,792
Revolving Loans Amortized Cost Basis	81,033	85,301
Total	2,124,920	1,357,568
Current and prior-period gross charge-offs, 2025-2024	0	0
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, prior	17	0
Revolving Loans Amortized Cost Basis	0	0
Total	17	0
Commercial real estate: | Owner-occupied | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	258,439	185,416
2024-2023	320,426	103,060
2023-2022	216,259	247,049
2022-2021	355,833	215,798
2021-2020	291,000	102,580
Prior	561,544	396,288
Revolving Loans Amortized Cost Basis	80,743	84,226
Total	2,084,244	1,334,417
Commercial real estate: | Owner-occupied | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	408	0
2023-2022	4,491	1,370
2022-2021	1,369	2,582
2021-2020	6,229	0
Prior	14,691	6,133
Revolving Loans Amortized Cost Basis	290	0
Total	27,478	10,085
Commercial real estate: | Owner-occupied | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	0
2023-2022	427	6,324
2022-2021	7,938	235
2021-2020	120	61
Prior	4,713	5,371
Revolving Loans Amortized Cost Basis	0	1,075
Total	13,198	13,066
Commercial real estate: | Non-owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	194,723	198,591
2024-2023	238,750	40,863
2023-2022	132,282	526,417
2022-2021	687,049	447,261
2021-2020	545,671	111,943
Prior	861,530	715,799
Revolving Loans Amortized Cost Basis	230,228	58,255
Total	2,890,233	2,099,129
Current and prior-period gross charge-offs, 2025-2024	0	0
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, 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]
2025-2024	194,723	198,591
2024-2023	238,750	36,027
2023-2022	126,491	526,417
2022-2021	678,639	445,598
2021-2020	536,518	111,943
Prior	846,729	689,158
Revolving Loans Amortized Cost Basis	230,228	58,255
Total	2,852,078	2,065,989
Commercial real estate: | Non-owner occupied | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	4,836
2023-2022	4,783	0
2022-2021	8,410	1,527
2021-2020	4,559	0
Prior	10,054	19,311
Revolving Loans Amortized Cost Basis	0	0
Total	27,806	25,674
Commercial real estate: | Non-owner occupied | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	0	0
2024-2023	0	0
2023-2022	1,008	0
2022-2021	0	136
2021-2020	4,594	0
Prior	4,747	7,330
Revolving Loans Amortized Cost Basis	0	0
Total	10,349	7,466
Total commercial loan types
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	1,005,657	811,166
2024-2023	1,122,688	449,209
2023-2022	728,634	1,542,919
2022-2021	1,783,005	1,059,936
2021-2020	1,243,792	334,172
Prior	2,030,925	1,361,370
Revolving Loans Amortized Cost Basis	1,187,373	1,330,639
Total	9,102,074	6,889,411
Current and prior-period gross charge-offs, 2025-2024	0	0
Current and prior-period gross charge-offs, -2024-2023	0	116
Current and prior-period gross charge-offs, 2023-2022	54	1,072
Current and prior-period gross charge-offs, 2022-2021	0	506
Current and prior-period gross charge-offs, 2021-2020	0	1,234
Current and prior-period gross charge-offs, prior	2,430	7
Revolving Loans Amortized Cost Basis	1,003	8,267
Total	3,487	11,202
Total commercial loan types | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	1,003,182	808,326
2024-2023	1,116,656	441,686
2023-2022	699,184	1,485,745
2022-2021	1,686,077	1,040,157
2021-2020	1,207,844	323,822
Prior	1,952,806	1,313,433
Revolving Loans Amortized Cost Basis	1,172,629	1,273,358
Total	8,838,378	6,686,527
Total commercial loan types | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	2,023	2,840
2024-2023	3,680	7,348
2023-2022	17,889	24,411
2022-2021	41,261	4,775
2021-2020	21,992	295
Prior	44,604	28,035
Revolving Loans Amortized Cost Basis	6,286	24,345
Total	137,735	92,049
Total commercial loan types | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	452	0
2024-2023	2,352	175
2023-2022	11,561	32,763
2022-2021	55,667	15,004
2021-2020	13,956	10,055
Prior	33,515	19,902
Revolving Loans Amortized Cost Basis	8,458	32,936
Total	125,961	110,835
Consumer and other
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	134,528	140,984
2024-2023	163,351	95,566
2023-2022	88,874	77,972
2022-2021	73,862	38,646
2021-2020	34,359	31,935
Prior	140,268	107,988
Revolving Loans Amortized Cost Basis	355	653
Total	635,597	493,744
Current and prior-period gross charge-offs, 2025-2024	1,434	1,593
Current and prior-period gross charge-offs, -2024-2023	118	511
Current and prior-period gross charge-offs, 2023-2022	76	302
Current and prior-period gross charge-offs, 2022-2021	104	278
Current and prior-period gross charge-offs, 2021-2020	86	69
Current and prior-period gross charge-offs, prior	989	298
Revolving Loans Amortized Cost Basis	4	0
Total	2,811	3,051
Consumer and other | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	134,005	139,684
2024-2023	159,677	93,817
2023-2022	85,141	76,286
2022-2021	72,047	35,507
2021-2020	31,276	29,387
Prior	133,392	102,233
Revolving Loans Amortized Cost Basis	355	652
Total	615,893	477,566
Consumer and other | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	523	1,300
2024-2023	3,674	1,749
2023-2022	3,733	1,686
2022-2021	1,815	3,139
2021-2020	3,083	2,548
Prior	6,876	5,755
Revolving Loans Amortized Cost Basis	0	1
Total	19,704	16,178
Total consumer type loans
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	405,989	364,531
2024-2023	393,493	261,902
2023-2022	260,599	528,598
2022-2021	512,723	405,191
2021-2020	388,184	165,801
Prior	526,880	383,822
Revolving Loans Amortized Cost Basis	707,658	603,128
Total	3,195,526	2,712,973
Current and prior-period gross charge-offs, 2025-2024	1,434	1,603
Current and prior-period gross charge-offs, -2024-2023	118	565
Current and prior-period gross charge-offs, 2023-2022	80	452
Current and prior-period gross charge-offs, 2022-2021	104	408
Current and prior-period gross charge-offs, 2021-2020	86	136
Current and prior-period gross charge-offs, prior	1,743	326
Revolving Loans Amortized Cost Basis	4	73
Total	3,569	3,563
Total consumer type loans | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	405,136	363,204
2024-2023	388,899	259,212
2023-2022	254,488	519,658
2022-2021	502,108	395,695
2021-2020	379,127	159,061
Prior	508,961	368,894
Revolving Loans Amortized Cost Basis	705,316	601,233
Total	3,144,035	2,666,957
Total consumer type loans | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2025-2024	853	1,327
2024-2023	4,594	2,690
2023-2022	6,111	8,940
2022-2021	10,615	9,496
2021-2020	9,057	6,740
Prior	17,919	14,928
Revolving Loans Amortized Cost Basis	2,342	1,895
Total	$ 51,491	$ 46,016