Allowance for Credit Losses - Schedule of Loans Held For Investment by Credit Quality Indicators (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 911,166	$ 1,751,231
2022	1,497,417	1,660,779
2021	1,490,143	227,850
2020	204,518	367,450
2019	323,714	182,525
Prior	861,220	762,176
Revolving Loans Amortized Cost Basis	1,785,209	1,905,183
Total	7,073,387	6,857,194
Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total	5,168,278	4,858,208
Real estate loans | Non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2023	99,056	177,852
2022	191,221	637,015
2021	597,265	34,525
2020	35,803	112,054
2019	90,311	82,385
Prior	402,213	350,552
Revolving Loans Amortized Cost Basis	177,702	221,333
Total	1,593,571	1,615,716
Real estate loans | Non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	99,056	177,852
2022	191,221	637,015
2021	597,265	34,525
2020	35,803	91,941
2019	90,311	82,385
Prior	402,213	342,174
Revolving Loans Amortized Cost Basis	177,702	221,333
Total	1,593,571	1,587,225
Real estate loans | Non-owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	8,378
Revolving Loans Amortized Cost Basis	0	0
Total	0	8,378
Real estate loans | Non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	20,113
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	20,113
Real estate loans | Non-owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Non-owner occupied | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Multi-family residential
Financing Receivable, Credit Quality Indicator [Line Items]
2023	1,801	85,670
2022	70,396	110,943
2021	105,857	26,881
2020	26,605	126,724
2019	117,535	27,242
Prior	144,313	124,433
Revolving Loans Amortized Cost Basis	305,147	318,130
Total	771,654	820,023
Real estate loans | Multi-family residential | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	1,801	85,670
2022	70,396	110,943
2021	105,857	26,881
2020	26,605	126,724
2019	117,535	27,242
Prior	120,969	124,433
Revolving Loans Amortized Cost Basis	305,147	318,130
Total	748,310	820,023
Real estate loans | Multi-family residential | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Multi-family residential | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	23,344	0
Revolving Loans Amortized Cost Basis	0	0
Total	23,344	0
Real estate loans | Multi-family residential | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Multi-family residential | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Land development and construction loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	42,384	8,846
2022	9,735	27,746
2021	28,911	23,459
2020	21,945	188
2019	0	0
Prior	26,928	26,930
Revolving Loans Amortized Cost Basis	172,035	186,005
Total	301,938	273,174
Real estate loans | Land development and construction loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	42,384	8,846
2022	9,735	27,746
2021	28,911	23,459
2020	21,945	188
2019	0	0
Prior	26,928	26,930
Revolving Loans Amortized Cost Basis	172,035	186,005
Total	301,938	273,174
Real estate loans | Land development and construction loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Land development and construction loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Land development and construction loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Land development and construction loans | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Single-family residential
Financing Receivable, Credit Quality Indicator [Line Items]
2023	286,064	480,328
2022	460,287	186,790
2021	181,306	70,853
2020	65,722	21,654
2019	21,041	16,630
Prior	72,306	65,990
Revolving Loans Amortized Cost Basis	284,468	260,600
Total	1,371,194	1,102,845
Real estate loans | Single-family residential | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	286,064	480,328
2022	460,287	186,790
2021	181,306	70,853
2020	65,722	21,654
2019	21,041	16,630
Prior	71,615	65,249
Revolving Loans Amortized Cost Basis	282,074	259,411
Total	1,368,109	1,100,915
Real estate loans | Single-family residential | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Single-family residential | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	691	741
Revolving Loans Amortized Cost Basis	2,394	1,189
Total	3,085	1,930
Real estate loans | Single-family residential | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Single-family residential | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2023	143,861	258,912
2022	262,104	481,592
2021	435,936	22,997
2020	20,904	63,629
2019	58,112	22,440
Prior	163,058	163,694
Revolving Loans Amortized Cost Basis	45,946	33,186
Total	1,129,921	1,046,450
Real estate loans | Owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	143,861	256,816
2022	262,104	479,961
2021	434,620	22,341
2020	20,904	63,629
2019	58,112	21,790
Prior	161,840	162,411
Revolving Loans Amortized Cost Basis	44,066	33,146
Total	1,125,507	1,040,094
Real estate loans | Owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	354	0
Revolving Loans Amortized Cost Basis	1,880	0
Total	2,234	0
Real estate loans | Owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	2,096
2022	0	1,631
2021	1,316	656
2020	0	0
2019	0	650
Prior	864	1,283
Revolving Loans Amortized Cost Basis	0	40
Total	2,180	6,356
Real estate loans | Owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Real estate loans | Owner occupied | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	309,417	400,781
2022	292,647	95,554
2021	79,482	20,082
2020	12,233	43,133
2019	36,680	33,774
Prior	39,038	17,281
Revolving Loans Amortized Cost Basis	683,262	770,629
Total	1,452,759	1,381,234
Commercial loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	302,410	400,781
2022	292,024	95,470
2021	79,465	19,815
2020	12,127	42,936
2019	34,900	32,248
Prior	38,184	16,297
Revolving Loans Amortized Cost Basis	660,939	761,489
Total	1,420,049	1,369,036
Commercial loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	7,007	0
2022	0	0
2021	0	0
2020	0	0
2019	0	1,499
Prior	0	0
Revolving Loans Amortized Cost Basis	19,968	250
Total	26,975	1,749
Commercial loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	623	84
2021	17	267
2020	106	194
2019	1,777	27
Prior	854	984
Revolving Loans Amortized Cost Basis	2,355	8,890
Total	5,732	10,446
Commercial loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	3
2019	3	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	3	3
Commercial loans | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Loans to financial institutions and acceptances
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	13,353	13,292
Revolving Loans Amortized Cost Basis	0	0
Total	13,353	13,292
Loans to financial institutions and acceptances | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	13,353	13,292
Revolving Loans Amortized Cost Basis	0	0
Total	13,353	13,292
Loans to financial institutions and acceptances | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Loans to financial institutions and acceptances | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Loans to financial institutions and acceptances | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Loans to financial institutions and acceptances | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Consumer loans and overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
2023	28,583	338,842
2022	211,027	121,139
2021	61,386	29,053
2020	21,306	68
2019	35	54
Prior	11	4
Revolving Loans Amortized Cost Basis	116,649	115,300
Total	438,997	604,460
Consumer loans and overdrafts | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	28,583	338,744
2022	211,027	121,011
2021	61,386	29,053
2020	21,306	68
2019	35	54
Prior	10	0
Revolving Loans Amortized Cost Basis	116,649	115,300
Total	438,996	604,230
Consumer loans and overdrafts | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Consumer loans and overdrafts | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	98
2022	0	128
2021	0	0
2020	0	0
2019	0	0
Prior	1	4
Revolving Loans Amortized Cost Basis	0	0
Total	1	230
Consumer loans and overdrafts | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Consumer loans and overdrafts | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	$ 0	$ 0