Loans Receivable, Net - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method Excluding PCI Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Allowance for credit losses on loans
Balance at beginning of period	$ 56,824	$ 48,850
Provision (benefit) for credit losses	3,324	1,656
Charge-offs	(10)	(143)
Recoveries	57	235
Balance at end of period	60,195	50,598
Commercial Real Estate – Investor
Allowance for credit losses on loans
Balance at beginning of period	21,070	25,504
Provision (benefit) for credit losses	1,379	(1,867)
Charge-offs	0	0
Recoveries	2	0
Balance at end of period	22,451	23,637
Commercial real estate – owner occupied
Allowance for credit losses on loans
Balance at beginning of period	4,423	5,884
Provision (benefit) for credit losses	(304)	(840)
Charge-offs	(6)	(4)
Recoveries	3	13
Balance at end of period	4,116	5,053
Commercial and industrial
Allowance for credit losses on loans
Balance at beginning of period	5,695	5,039
Provision (benefit) for credit losses	131	(406)
Charge-offs	(3)	0
Recoveries	4	16
Balance at end of period	5,827	4,649
Residential Real Estate
Allowance for credit losses on loans
Balance at beginning of period	24,530	11,155
Provision (benefit) for credit losses	2,390	5,028
Charge-offs	0	0
Recoveries	8	94
Balance at end of period	26,928	16,277
Other consumer
Allowance for credit losses on loans
Balance at beginning of period	1,106	1,268
Provision (benefit) for credit losses	(272)	(259)
Charge-offs	(1)	(139)
Recoveries	40	112
Balance at end of period	$ 873	$ 982