Allowance for Credit and Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss
Balance, beginning of period	$ 50,029	$ 50,464	$ 50,464
Credit loss expense (recovery)	669	(405)
PCD loan charge–offs	115	(154)
Charge–offs	(825)	(683)
Recoveries	399	304
Balance, end of period	50,387	49,526	50,029
Mortgage Warehouse
Financing Receivable, Allowance for Credit Loss
Balance, beginning of period	481	1,020	1,020
Credit loss expense (recovery)	178	(222)
PCD loan charge–offs	0	0
Charge–offs	0	0
Recoveries	0	0
Balance, end of period	659	798	481
Commercial
Financing Receivable, Allowance for Credit Loss
Balance, beginning of period	29,736	32,445	32,445
Credit loss expense (recovery)	606	(1,031)
PCD loan charge–offs	115	(154)
Charge–offs	(1)	(137)
Recoveries	58	33
Balance, end of period	30,514	31,156	29,736
Real Estate
Financing Receivable, Allowance for Credit Loss
Balance, beginning of period	2,503	5,577	5,577
Credit loss expense (recovery)	147	(1,136)
PCD loan charge–offs	0	0
Charge–offs	(1)	(4)
Recoveries	6	10
Balance, end of period	2,655	4,447	2,503
Consumer
Financing Receivable, Allowance for Credit Loss
Balance, beginning of period	17,309	11,422	11,422
Credit loss expense (recovery)	(262)	1,984
PCD loan charge–offs	0	0
Charge–offs	(823)	(542)
Recoveries	335	261
Balance, end of period	$ 16,559	$ 13,125	$ 17,309