Other Comprehensive (Loss) Income - Schedule of Components of Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Before Tax
Net unrealized gain (loss) on securities available-for-sale	$ 24,039	$ (79,227)
Less: Reclassification adjustment for net loss (gain) included in net income	21	25
Total unrealized gain (loss) on investment securities available-for-sale	24,060	(79,202)
Amortization of unrealized loss on securities transferred to held-to-maturity	1,983
Net unrealized (loss) gain on securities transferred to held-to-maturity		(66,193)
Total unrealized (loss) gain recognized on investment securities held-to-maturity	1,983	(66,193)
Other comprehensive income (loss)	26,043	(145,395)
Tax Effect
Net unrealized gain (loss) on securities available-for-sale	(6,103)	20,821
Less: Reclassification adjustment for net loss (gain) included in net income	(5)	(6)
Total unrealized gain (loss) on investment securities available-for-sale	(6,108)	20,815
Amortization of unrealized loss on securities transferred to held-to-maturity	(1,342)
Net unrealized (loss) gain on securities transferred to held-to-maturity		17,098
Total unrealized (loss) gain recognized on investment securities held-to-maturity	(1,342)	17,098
Other comprehensive income (loss)	(7,450)	37,913
Net of Tax
Net unrealized gain (loss) on securities available-for-sale	17,936	(107,501)
Less: Reclassification adjustment for net loss (gain) included in net income	16	19
Total unrealized gain (loss) on investment securities available-for-sale	17,952	(58,387)
Net unrealized (loss) gain on securities transferred to held-to-maturity		(49,095)
Amortization of unrealized loss on securities transferred to held-to-maturity	641
Total unrealized (loss) gain recognized on investment securities held-to-maturity	641	(49,095)
Other comprehensive income (loss)	$ 18,593	$ (107,482)