Summary of Significant Accounting Policies - Schedule of Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Other comprehensive (loss)/income:
Other comprehensive (loss)/income before tax	$ (17,853)			$ 1,864			$ (85,369)	$ 40,670
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income/(loss), Provision (Benefit)	(3,748)			391			(17,927)	8,541
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	(12,764)			2,324			(69,261)	34,775
Less reclassification adjustments, Provision (Benefit)	(1,341)			(851)			1,819	(2,646)
Other comprehensive (loss)/income net of tax	(14,105)	$ (9,819)	$ (43,518)	1,473	$ (35,011)	$ 65,667	(67,442)	32,129
Securities | Available-for-Sale Securities
Other comprehensive (loss)/income:
Unrealized gain/(losses), Before Tax	(41,824)			1,614			(158,263)	32,574
Other comprehensive (loss)/income before tax	(41,827)			991			(158,273)	29,966
Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gains/(losses), Provision (Benefit)	(8,783)			339			(33,236)	6,840
Other comprehensive income/(loss), Provision (Benefit)	(8,784)			209			(33,238)	6,293
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	(33,041)			1,275			(125,027)	25,734
Other comprehensive (loss)/income net of tax	(33,043)			782			(125,035)	23,673
Securities | Held-to-Maturity Securities
Other comprehensive (loss)/income:
Less reclassification adjustments, Before Tax	(622)			(2,385)			220	(6,195)
Other comprehensive (loss)/income before tax	(622)			(2,385)			220	(6,195)
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(130)			(501)			47	(1,301)
Other comprehensive income/(loss), Provision (Benefit)	(130)			(501)			47	(1,301)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(492)			(1,884)			173	(4,894)
Other comprehensive (loss)/income net of tax	(492)			(1,884)			173	(4,894)
Securities | Net interest income | Available-for-Sale Securities
Other comprehensive (loss)/income:
Less reclassification adjustments, Before Tax	0			(362)			0	(2,333)
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	0			(76)			0	(490)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	0			(286)			0	(1,843)
Securities | Other income | Available-for-Sale Securities
Other comprehensive (loss)/income:
Less reclassification adjustments, Before Tax	(3)			(8)			(10)	(22)
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(1)			(1)			(2)	(4)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	(2)			(7)			(8)	(18)
Cash Flow Hedges
Other comprehensive (loss)/income:
Unrealized gain/(losses), Before Tax	25,668			1,326			70,590	11,445
Less reclassification adjustments, Before Tax	(1,072)			1,932			2,094	5,454
Other comprehensive (loss)/income before tax	24,596			3,258			72,684	16,899
Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gains/(losses), Provision (Benefit)	5,391			277			14,824	2,404
Less reclassification adjustments, Provision (Benefit)	(225)			406			440	1,145
Other comprehensive income/(loss), Provision (Benefit)	5,166			683			15,264	3,549
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	20,277			1,049			55,766	9,041
Less reclassification adjustments, Provision (Benefit)	(847)			1,526			1,654	4,309
Other comprehensive (loss)/income net of tax	19,430			2,575			57,420	13,350
AOCI Attributable to Parent
Other comprehensive (loss)/income:
Other comprehensive (loss)/income before tax	(17,853)			1,864			(85,369)	40,670
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income/(loss), Provision (Benefit)	(3,748)			391			(17,927)	8,541
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive (loss)/income net of tax	(14,105)			1,473			(67,442)	32,129
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest | Available-for-Sale Securities
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	(33,041)			1,275			(125,027)	25,734
Less reclassification adjustments, Provision (Benefit)	(2)			(493)			(8)	(2,061)
Other comprehensive (loss)/income net of tax	(33,043)			782			(125,035)	23,673
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest | Held-to-Maturity Securities
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains/(losses), After Tax	0			0			0	0
Less reclassification adjustments, Provision (Benefit)	(492)			(1,884)			173	(4,894)
Other comprehensive (loss)/income net of tax	(492)			(1,884)			173	(4,894)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest | Gain on sale of available-for sale investment securities | Available-for-Sale Securities | Reclassification adjustments
Other comprehensive (loss)/income:
Less reclassification adjustments, Before Tax	0			(253)			0	(253)
Other Comprehensive Income (Loss), Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	0			(53)			0	(53)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Less reclassification adjustments, Provision (Benefit)	$ 0			$ (200)			$ 0	$ (200)