Summary of Significant Accounting Policies - Schedule of Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Other comprehensive income/(loss):
Other comprehensive income/(loss) before tax	$ 32,292		$ (12,430)		$ 20,876	$ (67,516)
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income/(loss), Provision (Benefit)	6,781		(2,611)		4,384	(14,179)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	29,790		(11,413)		24,863	(56,497)
Less reclassification adjustments, Provision (Benefit)	(4,279)		1,594		(8,371)	3,160
Net comprehensive income/(loss)	25,511	$ (9,019)	(9,819)	$ (43,518)	16,492	(53,337)
Securities | Available-for-Sale Securities
Other comprehensive income/(loss):
Unrealized gain/(losses), Before Tax	23,339		(30,176)		24,003	(116,439)
Other comprehensive income/(loss) before tax	23,334		(30,179)		23,992	(116,446)
Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gains/(losses), Provision (Benefit)	4,901		(6,337)		5,040	(24,453)
Other comprehensive income/(loss), Provision (Benefit)	4,900		(6,338)		5,038	(24,454)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	18,438		(23,839)		18,963	(91,986)
Net comprehensive income/(loss)	18,434		(23,841)		18,954	(91,992)
Securities | Held-to-Maturity Securities
Other comprehensive income/(loss):
Less reclassification adjustments, Before Tax	(321)		865		(1,103)	842
Other comprehensive income/(loss) before tax	(321)		865		(1,103)	842
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(68)		181		(232)	177
Other comprehensive income/(loss), Provision (Benefit)	(68)		181		(232)	177
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(253)		684		(871)	665
Net comprehensive income/(loss)	(253)		684		(871)	665
Securities | Net interest income | Available-for-Sale Securities
Other comprehensive income/(loss):
Less reclassification adjustments, Before Tax	0		0		0	0
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	0		0		0	0
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	0		0		0	0
Securities | Other income | Available-for-Sale Securities
Other comprehensive income/(loss):
Less reclassification adjustments, Before Tax	(5)		(3)		(11)	(7)
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(1)		(1)		(2)	(1)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(4)		(2)		(9)	(6)
Cash Flow Hedges
Other comprehensive income/(loss):
Unrealized gain/(losses), Before Tax	14,370		15,729		7,469	44,922
Less reclassification adjustments, Before Tax	(5,091)		1,155		(9,482)	3,166
Other comprehensive income/(loss) before tax	9,279		16,884		(2,013)	48,088
Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gains/(losses), Provision (Benefit)	3,018		3,303		1,569	9,433
Less reclassification adjustments, Provision (Benefit)	(1,069)		243		(1,991)	665
Other comprehensive income/(loss), Provision (Benefit)	1,949		3,546		(422)	10,098
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	11,352		12,426		5,900	35,489
Less reclassification adjustments, Provision (Benefit)	(4,022)		912		(7,491)	2,501
Net comprehensive income/(loss)	7,330		13,338		(1,591)	37,990
AOCI Attributable to Parent
Other comprehensive income/(loss):
Other comprehensive income/(loss) before tax	32,292		(12,430)		20,876	(67,516)
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income/(loss), Provision (Benefit)	6,781		(2,611)		4,384	(14,179)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net comprehensive income/(loss)	$ 25,511		$ (9,819)		$ 16,492	$ (53,337)