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Loans and Allowance for Loan Losses, Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2020	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	$ 263,233	$ 285,050	$ 94,777		$ 83,575
Charged-off loans	(54,996)	(49,333)	(28,467)
Recovery of previously charged-off loans	16,273	9,962	12,386
Provision for credit losses	16,906	191,542	27,283
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 38,102
Commercial Real Estate Owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	19,618	23,298	13,406		10,575
Charged-off loans	(1,420)	(2,598)	(1,625)
Recovery of previously charged-off loans	1,609	1,317	1,252
Provision for credit losses	(3,869)	10,909	3,204
Commercial Real Estate Owner Occupied | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				264
Commercial real estate non owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	58,504	79,132	19,963		16,371
Charged-off loans	(786)	(546)	(75)
Recovery of previously charged-off loans	969	911	980
Provision for credit losses	(20,811)	63,544	2,687
Commercial real estate non owner occupied | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				(4,740)
Consumer Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	32,104	33,304	8,054		7,670
Charged-off loans	(632)	(3,478)	(1,335)
Recovery of previously charged-off loans	2,288	1,493	1,827
Provision for credit losses	(2,856)	6,206	(108)
Consumer Real Estate | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				21,029
Construction and Land Development
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	29,429	42,408	12,662		11,128
Charged-off loans	(367)	0	(18)
Recovery of previously charged-off loans	372	147	682
Provision for credit losses	(12,984)	32,743	870
Construction and Land Development | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				(3,144)
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	112,340	98,423	36,112		31,731
Charged-off loans	(46,213)	(38,718)	(19,208)
Recovery of previously charged-off loans	7,485	4,540	6,473
Provision for credit losses	52,645	73,449	17,116
Commercial and Industrial | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				23,040
Consumer and Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	11,238	8,485	3,595		5,423
Charged-off loans	(5,578)	(3,993)	(6,206)
Recovery of previously charged-off loans	3,550	1,554	1,172
Provision for credit losses	4,781	4,691	3,206
Consumer and Other | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				2,638
Unallocated Financing Receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses	0	0	985		$ 677
Charged-off loans	0	0	0
Recovery of previously charged-off loans	0	0	0
Provision for credit losses	$ 0	$ 0	$ 308
Unallocated Financing Receivables | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses				$ (985)

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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