Shareholders' Equity and Compensation Plans - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Other comprehensive income (loss), securities, available-for-sale, unrealized holding gain (loss) arising during period, before tax	$ 42,988	$ (200,030)	$ (22,701)
Unrealized (loss)/gain on investment securities available for sale arising during the period, tax	10,833	(50,407)	(5,652)
Other comprehensive income (loss), securities, available-for-sale, unrealized holding gain (loss) arising during period, net of tax	32,155	(149,623)	(17,049)
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, before tax	(601)	0	0
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, tax	(151)	0	0
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, net of tax	(450)	0	0
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, before of tax	(3,483)	(3,605)	(4,672)
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, tax	(878)	(909)	(1,048)
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, net of tax	(2,605)	(2,696)	(3,624)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(656)	3,741	1,533
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	(165)	943	372
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(491)	2,798	1,161
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Cash Flow Hedges, before Tax	945	551	1,543
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Cash Flow Hedges, Tax	237	139	374
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Cash Flow Hedges, after Tax	708	412	1,169
Other comprehensive income (loss) before tax	39,193	(199,343)	(24,297)
Other comprehensive income (loss) tax	9,876	(50,234)	(5,954)
Other comprehensive income (loss)	$ 29,317	$ (149,109)	$ (18,343)