Allowance for Credit Losses - Activity by Portfolio Segment (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 06, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		$ 67,112	$ 67,252	$ 58,047	$ 71,124
Initial allowance for credit losses on PCD loans	$ 12,077	0	0	12,077	0
Charge-offs		(369)	(1,861)	(8,173)	(3,132)
Recoveries		510	312	672	519
Provision (benefit) for credit loss - loans		1,583	(5,314)	6,213	(8,122)
Balance at end of the period		68,836	60,389	68,836	60,389
Non-owner occupied commercial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		23,649	23,880	20,071	25,910
Initial allowance for credit losses on PCD loans				1,312
Charge-offs		0	(1,650)	(4)	(2,243)
Recoveries		4	1	4	3
Provision (benefit) for credit loss - loans		273	(1,325)	2,543	(2,764)
Balance at end of the period		23,926	20,906	23,926	20,906
Owner occupied commercial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		6,125	4,003	3,964	3,955
Initial allowance for credit losses on PCD loans				1,137
Charge-offs		(4)	0	(38)	(78)
Recoveries		341	9	351	17
Provision (benefit) for credit loss - loans		476	88	1,524	206
Balance at end of the period		6,938	4,100	6,938	4,100
Multifamily
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		8,300	7,508	8,309	7,253
Initial allowance for credit losses on PCD loans				4
Charge-offs		0	0	0	0
Recoveries		0	0	0	0
Provision (benefit) for credit loss - loans		141	(331)	128	(76)
Balance at end of the period		8,441	7,177	8,441	7,177
Non-owner occupied residential
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		2,908	2,883	2,380	3,321
Initial allowance for credit losses on PCD loans				175
Charge-offs		0	(3)	0	(212)
Recoveries		0	11	14	13
Provision (benefit) for credit loss - loans		(15)	(299)	324	(530)
Balance at end of the period		2,893	2,592	2,893	2,592
Commercial, industrial and other
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		11,674	12,139	9,891	13,665
Initial allowance for credit losses on PCD loans				2,413
Charge-offs		(305)	(110)	(1,128)	(375)
Recoveries		33	105	78	149
Provision (benefit) for credit loss - loans		(1,313)	(1,645)	(1,165)	(2,950)
Balance at end of the period		10,089	10,489	10,089	10,489
Construction
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		1,727	1,129	838	786
Initial allowance for credit losses on PCD loans				6,843
Charge-offs		0	0	(6,807)	0
Recoveries		0	42	3	67
Provision (benefit) for credit loss - loans		1,210	(137)	2,060	181
Balance at end of the period		2,937	1,034	2,937	1,034
Equipment finance
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		2,459	6,264	3,663	6,552
Initial allowance for credit losses on PCD loans				0
Charge-offs		(24)	(10)	(121)	(104)
Recoveries		64	6	79	17
Provision (benefit) for credit loss - loans		(246)	(1,140)	(1,368)	(1,345)
Balance at end of the period		2,253	5,120	2,253	5,120
Residential mortgage
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		5,686	3,781	3,914	3,623
Initial allowance for credit losses on PCD loans				179
Charge-offs		0	(36)	0	(36)
Recoveries		0	118	48	176
Provision (benefit) for credit loss - loans		893	22	2,438	122
Balance at end of the period		6,579	3,885	6,579	3,885
Consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of the period		4,584	5,665	5,017	6,059
Initial allowance for credit losses on PCD loans				14
Charge-offs		(36)	(52)	(75)	(84)
Recoveries		68	20	95	77
Provision (benefit) for credit loss - loans		164	(547)	(271)	(966)
Balance at end of the period		$ 4,780	$ 5,086	$ 4,780	$ 5,086