Loans and Allowance for Credit Losses - Loans Individually and Collectively Evaluated for Impairment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for credit losses:
Less allowance for credit losses	$ (74,444)	$ (74,965)	$ (109,579)	$ (73,658)
Loans:
Loans	7,635,632	7,065,598
Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(5,183)	(6,955)
Loans:
Loans	30,697	39,134
Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(69,261)	(68,010)
Loans:
Loans	7,604,935	7,026,464
Commercial
Allowance for credit losses:
Less allowance for credit losses	(15,655)	(14,475)
Loans:
Loans	1,490,605	1,405,422
Commercial | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(1,644)	(1,799)
Loans:
Loans	3,434	11,284
Commercial | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(14,011)	(12,676)
Loans:
Loans	1,487,171	1,394,138
Income producing - commercial real estate
Allowance for credit losses:
Less allowance for credit losses	(35,688)	(38,287)	(55,385)	(29,265)
Loans:
Loans	3,919,941	3,385,298
Income producing - commercial real estate | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(3,198)	(5,156)
Loans:
Loans	6,328	22,570
Income producing - commercial real estate | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(32,490)	(33,131)
Loans:
Loans	3,913,613	3,362,728
Owner occupied - commercial real estate
Allowance for credit losses:
Less allowance for credit losses	(12,702)	(12,146)	(14,000)	(5,838)
Loans:
Loans	1,110,325	1,087,776
Owner occupied - commercial real estate | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	0	0
Loans:
Loans	19,187	42
Owner occupied - commercial real estate | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(12,702)	(12,146)
Loans:
Loans	1,091,138	1,087,734
Real estate mortgage - residential
Allowance for credit losses:
Less allowance for credit losses	(969)	(449)	(1,020)	(1,557)
Loans:
Loans	73,001	73,966
Real estate mortgage - residential | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(294)	0
Loans:
Loans	1,698	1,779
Real estate mortgage - residential | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(675)	(449)
Loans:
Loans	71,303	72,187
Construction - Commercial  and Residential
Allowance for credit losses:
Less allowance for credit losses	(8,801)	(9,099)
Loans:
Loans	988,234	1,055,898
Construction - Commercial  and Residential | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	0	0
Loans:
Loans	0	3,093
Construction - Commercial  and Residential | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(8,801)	(9,099)
Loans:
Loans	988,234	1,052,805
Home equity
Allowance for credit losses:
Less allowance for credit losses	(555)	(474)	(1,039)	(656)
Loans:
Loans	51,782	55,811
Home equity | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	0	0
Loans:
Loans	0	366
Home equity | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(555)	(474)
Loans:
Loans	51,782	55,445
Other Consumer
Allowance for credit losses:
Less allowance for credit losses	(74)	(35)	$ (37)	$ (25)
Loans:
Loans	1,744	1,427
Other Consumer | Individually evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(47)	0
Loans:
Loans	50	0
Other Consumer | Collectively evaluated for impairment
Allowance for credit losses:
Less allowance for credit losses	(27)	(35)
Loans:
Loans	$ 1,694	$ 1,427