Quarterly Consolidated Results of Operations (Unaudited) - Summary of the Quarterly Consolidated Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 60,490	$ 60,861	$ 60,864	$ 61,372	$ 60,816	$ 60,159	$ 62,449	$ 54,522	$ 243,587		$ 237,946		$ 141,084
Interest expense	3,288	3,826	4,245	4,859	5,849	6,888	8,145	9,059	16,218		29,941		25,435
Net interest income	57,202	57,035	56,619	56,513	54,967	53,271	54,304	45,463	227,369		208,005		115,649
Credit loss (benefit) expense - loans and leases	2,816	1,594	(3,631)	(7,512)	(6,158)	3,658	1,868	43,786	(6,733)	[1]	43,154	[1]	2,905	[1]
Provision for unfunded commitments/ loan losses	(807)	226	(288)	550	(606)	(864)	1,107	1,459
Net interest income after provision for credit losses	55,193	55,215	60,538	63,475	61,731	50,477	51,329	218	234,421		163,755		112,765
Noninterest income	17,824	18,314	17,545	26,274	18,670	25,000	23,015	13,999	79,957		80,684		44,956
Noninterest expense	(41,733)	(39,045)	(38,375)	(38,802)	(41,313)	(43,563)	(37,984)	(42,310)	(157,955)		(165,170)		(97,084)
Income before income taxes	31,284	34,484	39,708	50,947	39,088	31,914	36,360	(28,093)	156,423		79,269		60,637
Income taxes	5,974	6,124	8,323	9,951	8,240	6,259	7,303	(5,610)	30,372		16,192		11,267
Net Income	$ 25,310	$ 28,360	$ 31,385	$ 40,996	$ 30,848	$ 25,655	$ 29,057	$ (22,483)	$ 126,051		$ 63,077		$ 49,370
Earnings per common share:
Basic	$ 0.69	$ 0.76	$ 0.84	$ 1.10	$ 0.83	$ 0.69	$ 0.78	$ (0.71)	$ 3.39		$ 1.75		$ 2.49
Diluted	$ 0.69	$ 0.76	$ 0.84	$ 1.10	$ 0.82	$ 0.69	$ 0.78	$ (0.71)	$ 3.39		$ 1.75		$ 2.48

[1] Beginning January 1, 2020, calculation is based on current expected loss methodology. Prior to January 1, 2020, calculation was based on incurred loss methodology.