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
	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 9,287,225	$ 9,298,212
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	174,050	396,833
2022-2021	325,787	204,830
2021-2020	167,730	69,147
2020-2019	47,977	92,705
2019-2018	74,931	40,196
Prior	83,514	70,500
Revolving Loans Amortized Cost Basis	793,868	771,572
Total	1,667,857	1,645,783
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	200
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	11
Total	211
Commercial and industrial | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	173,571	396,643
2022-2021	318,859	204,000
2021-2020	161,099	67,231
2020-2019	44,240	90,894
2019-2018	74,359	39,780
Prior	76,543	62,816
Revolving Loans Amortized Cost Basis	770,102	762,717
Total	1,618,773	1,624,081
Commercial and industrial | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	125
2022-2021	3,597	7
2021-2020	3,650	0
2020-2019	1,886	160
2019-2018	154	143
Prior	554	771
Revolving Loans Amortized Cost Basis	16,763	2,520
Total	26,604	3,726
Commercial and industrial | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	479	65
2022-2021	3,331	823
2021-2020	2,981	1,916
2020-2019	1,851	1,651
2019-2018	418	273
Prior	6,417	6,913
Revolving Loans Amortized Cost Basis	7,003	6,335
Total	22,480	17,976
Construction
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	126,434	682,965
2022-2021	707,760	496,032
2021-2020	304,241	142,248
2020-2019	59,986	84,599
2019-2018	64,365	17,360
Prior	47,246	45,378
Revolving Loans Amortized Cost Basis	222,274	188,906
Total	1,532,306	1,657,488
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	0
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	0
Total	0
Construction | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	126,434	682,885
2022-2021	693,076	495,723
2021-2020	301,232	142,233
2020-2019	54,005	84,599
2019-2018	64,365	17,360
Prior	46,581	44,326
Revolving Loans Amortized Cost Basis	222,274	188,906
Total	1,507,967	1,656,032
Construction | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	11,710	0
2021-2020	2,712	15
2020-2019	4	0
2019-2018	0	0
Prior	665	707
Revolving Loans Amortized Cost Basis	0	0
Total	15,091	722
Construction | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	80
2022-2021	2,974	309
2021-2020	297	0
2020-2019	5,977	0
2019-2018	0	0
Prior	0	345
Revolving Loans Amortized Cost Basis	0	0
Total	9,248	734
Residential real estate: | Multi-family mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	28,892	142,912
2022-2021	143,075	147,168
2021-2020	147,585	96,819
2020-2019	93,134	33,547
2019-2018	30,125	6,971
Prior	44,972	38,551
Revolving Loans Amortized Cost Basis	13,540	13,604
Total	501,323	479,572
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	0
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	0
Total	0
Residential real estate: | Multi-family mortgage | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	28,892	142,912
2022-2021	143,075	147,168
2021-2020	147,585	96,819
2020-2019	93,134	33,547
2019-2018	30,125	6,971
Prior	43,865	37,385
Revolving Loans Amortized Cost Basis	13,540	13,604
Total	500,216	478,406
Residential real estate: | Multi-family mortgage | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	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]
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
Prior	1,107	1,166
Revolving Loans Amortized Cost Basis	0	0
Total	1,107	1,166
Residential real estate: | 1-to-4 family mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	144,807	569,437
2022-2021	517,757	453,564
2021-2020	406,037	166,187
2020-2019	151,931	95,326
2019-2018	85,920	70,157
Prior	246,644	218,450
Revolving Loans Amortized Cost Basis	0	0
Total	1,553,096	1,573,121
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	16
Current-period gross charge-offs, 2021	0
Current-period gross charge-offs, 2020	4
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	16
Revolving Loans Amortized Cost Basis	0
Total	36
Residential real estate: | 1-to-4 family mortgage | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	144,807	568,210
2022-2021	513,172	448,401
2021-2020	403,190	160,715
2020-2019	148,530	93,548
2019-2018	85,472	68,113
Prior	239,905	211,019
Revolving Loans Amortized Cost Basis	0	0
Total	1,535,076	1,550,006
Residential real estate: | 1-to-4 family mortgage | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	1,227
2022-2021	4,585	5,163
2021-2020	2,847	5,472
2020-2019	3,401	1,778
2019-2018	448	2,044
Prior	6,739	7,431
Revolving Loans Amortized Cost Basis	0	0
Total	18,020	23,115
Residential real estate: | Residential line of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	517,082	496,660
Total	517,082	496,660
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	0
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	0
Total	0
Residential real estate: | Residential line of credit | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	514,592	495,129
Total	514,592	495,129
Residential real estate: | Residential line of credit | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	2,490	1,531
Total	2,490	1,531
Commercial real estate: | Owner-occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	66,870	237,963
2022-2021	273,066	225,859
2021-2020	240,952	110,972
2020-2019	116,923	153,162
2019-2018	156,572	69,602
Prior	300,072	254,690
Revolving Loans Amortized Cost Basis	51,896	62,332
Total	1,206,351	1,114,580
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	144
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	0
Total	144
Commercial real estate: | Owner-occupied | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	66,870	237,862
2022-2021	265,604	223,883
2021-2020	238,442	110,748
2020-2019	116,923	148,405
2019-2018	155,174	66,101
Prior	292,046	246,414
Revolving Loans Amortized Cost Basis	48,698	57,220
Total	1,183,757	1,090,633
Commercial real estate: | Owner-occupied | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	101
2022-2021	1,310	683
2021-2020	1,843	0
2020-2019	0	168
2019-2018	158	2,225
Prior	4,061	1,258
Revolving Loans Amortized Cost Basis	0	5,000
Total	7,372	9,435
Commercial real estate: | Owner-occupied | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	6,152	1,293
2021-2020	667	224
2020-2019	0	4,589
2019-2018	1,240	1,276
Prior	3,965	7,018
Revolving Loans Amortized Cost Basis	3,198	112
Total	15,222	14,512
Commercial real estate: | Non-owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	20,929	467,360
2022-2021	468,544	442,577
2021-2020	453,345	131,497
2020-2019	120,945	159,351
2019-2018	160,430	214,104
Prior	635,336	488,213
Revolving Loans Amortized Cost Basis	52,384	60,908
Total	1,911,913	1,964,010
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	0
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	0
Total	0
Commercial real estate: | Non-owner occupied | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	20,929	467,360
2022-2021	463,203	440,319
2021-2020	448,364	131,497
2020-2019	120,945	159,205
2019-2018	160,039	210,752
Prior	614,751	473,607
Revolving Loans Amortized Cost Basis	50,233	60,908
Total	1,878,464	1,943,648
Commercial real estate: | Non-owner occupied | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	5,341	0
2021-2020	3,027	0
2020-2019	0	0
2019-2018	391	82
Prior	10,521	2,459
Revolving Loans Amortized Cost Basis	2,151	0
Total	21,431	2,541
Commercial real estate: | Non-owner occupied | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	0
2022-2021	0	2,258
2021-2020	1,954	0
2020-2019	0	146
2019-2018	0	3,270
Prior	10,064	12,147
Revolving Loans Amortized Cost Basis	0	0
Total	12,018	17,821
Consumer and other
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	78,401	118,803
2022-2021	96,986	58,175
2021-2020	49,935	42,468
2020-2019	37,528	30,045
2019-2018	26,580	28,489
Prior	100,690	84,843
Revolving Loans Amortized Cost Basis	7,177	4,175
Total	397,297	366,998
Current-period gross charge-offs, 2023	1,022
Current-period gross charge-offs, 2022	519
Current-period gross charge-offs, 2021	116
Current-period gross charge-offs, 2020	120
Current-period gross charge-offs, 2019	38
Current-period gross charge-offs, prior	247
Revolving Loans Amortized Cost Basis	2
Total	2,064
Consumer and other | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	78,288	118,637
2022-2021	95,910	56,779
2021-2020	47,756	41,008
2020-2019	35,648	29,139
2019-2018	25,257	26,982
Prior	96,766	82,318
Revolving Loans Amortized Cost Basis	7,175	4,175
Total	386,800	359,038
Consumer and other | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	113	166
2022-2021	1,076	1,396
2021-2020	2,179	1,460
2020-2019	1,880	906
2019-2018	1,323	1,507
Prior	3,924	2,525
Revolving Loans Amortized Cost Basis	2	0
Total	10,497	7,960
Total consumer type loans
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	223,208	688,240
2022-2021	614,743	511,739
2021-2020	455,972	208,655
2020-2019	189,459	125,371
2019-2018	112,500	98,646
Prior	347,334	303,293
Revolving Loans Amortized Cost Basis	524,259	500,835
Total	2,467,475	2,436,779
Current-period gross charge-offs, 2023	1,022
Current-period gross charge-offs, 2022	535
Current-period gross charge-offs, 2021	116
Current-period gross charge-offs, 2020	124
Current-period gross charge-offs, 2019	38
Current-period gross charge-offs, prior	263
Revolving Loans Amortized Cost Basis	2
Total	2,100
Total consumer type loans | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	223,095	686,847
2022-2021	609,082	505,180
2021-2020	450,946	201,723
2020-2019	184,178	122,687
2019-2018	110,729	95,095
Prior	336,671	293,337
Revolving Loans Amortized Cost Basis	521,767	499,304
Total	2,436,468	2,404,173
Total consumer type loans | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	113	1,393
2022-2021	5,661	6,559
2021-2020	5,026	6,932
2020-2019	5,281	2,684
2019-2018	1,771	3,551
Prior	10,663	9,956
Revolving Loans Amortized Cost Basis	2,492	1,531
Total	31,007	32,606
Total Commercial Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	417,175	1,928,033
2022-2021	1,918,232	1,516,466
2021-2020	1,313,853	550,683
2020-2019	438,965	523,364
2019-2018	486,423	348,233
Prior	1,111,140	897,332
Revolving Loans Amortized Cost Basis	1,133,962	1,097,322
Total	6,819,750	6,861,433
Current-period gross charge-offs, 2023	0
Current-period gross charge-offs, 2022	0
Current-period gross charge-offs, 2021	344
Current-period gross charge-offs, 2020	0
Current-period gross charge-offs, 2019	0
Current-period gross charge-offs, prior	0
Revolving Loans Amortized Cost Basis	11
Total	355
Total Commercial Loans | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	416,696	1,927,662
2022-2021	1,883,817	1,511,093
2021-2020	1,296,722	548,528
2020-2019	429,247	516,650
2019-2018	484,062	340,964
Prior	1,073,786	864,548
Revolving Loans Amortized Cost Basis	1,104,847	1,083,355
Total	6,689,177	6,792,800
Total Commercial Loans | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	0	226
2022-2021	21,958	690
2021-2020	11,232	15
2020-2019	1,890	328
2019-2018	703	2,450
Prior	15,801	5,195
Revolving Loans Amortized Cost Basis	18,914	7,520
Total	70,498	16,424
Total Commercial Loans | Classified
Financing Receivable, Allowance for Credit Loss [Line Items]
2023-2022	479	145
2022-2021	12,457	4,683
2021-2020	5,899	2,140
2020-2019	7,828	6,386
2019-2018	1,658	4,819
Prior	21,553	27,589
Revolving Loans Amortized Cost Basis	10,201	6,447
Total	$ 60,075	$ 52,209