Reclassification of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Supplemental Comprehensive Income Disclosures [Abstract]
Unrealized holding gains on securities arising during the period	$ (57,251)	$ (15,804)
Reclassification adjustment for gains on securities included in net income	(2)	(6)
Total unrealized gains on securities	(57,253)	(15,810)
Unrealized holding (losses) gains on derivatives arising during the period	(17,926)	1,842
Unrealized holding gains on securities arising during the period	12,023	3,319
Reclassification adjustment for gains on securities included in net income	0	1
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	12,023	3,320
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	(17,926)	1,842
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	3,764	(387)
Total other comprehensive (loss) income	(75,179)	(13,968)
Other Comprehensive Income (Loss), Tax	15,787	2,933
Other comprehensive income (loss) before reclassification adjustment	(45,228)	(12,485)
Reclassification adjustment for gains on securities included in net income	2	5
Total unrealized (losses) gains on securities	(45,230)	(12,490)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Total	(14,162)	1,455
Total other comprehensive (loss) income	(59,392)	(11,035)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(68,160)	6,198	$ (8,768)	$ 17,233
Other comprehensive income (loss) before reclassification adjustment	(45,228)	(12,485)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(59,390)	(11,030)
Amounts reclassified from accumulated other comprehensive income (loss)	(2)	(5)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	(17,926)	1,842
Total other comprehensive (loss) income	(59,392)	(11,035)
Unrealized holding losses on securities arising during the period	(57,251)	(15,804)
Unrealized holding gains on securities arising during the period	12,023	3,319
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	2	6
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	0	(1)
Reclassification adjustment for gains on securities included in net income	2	5
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	(57,253)	(15,810)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	12,023	3,320
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	(45,230)	(12,490)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	3,764	(387)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	(17,926)	1,842
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(17,926)	1,842
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	3,764	(387)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Total	(14,162)	1,455
Other Comprehensive Income (Loss), before Tax	(75,179)	(13,968)
Other Comprehensive Income (Loss), Tax	15,787	2,933
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Supplemental Comprehensive Income Disclosures [Abstract]
Other comprehensive income (loss) before reclassification adjustment	(45,228)	(12,485)
Total other comprehensive (loss) income	(45,230)	(12,490)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(48,547)	7,820	(3,317)	20,310
Other comprehensive income (loss) before reclassification adjustment	(45,228)	(12,485)
Amounts reclassified from accumulated other comprehensive income (loss)	(2)	(5)
Total other comprehensive (loss) income	(45,230)	(12,490)
Accumulated Defined Benefit Plans Adjustment [Member]
Supplemental Comprehensive Income Disclosures [Abstract]
Other comprehensive income (loss) before reclassification adjustment	0	0
Total other comprehensive (loss) income	0	0
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	95	(182)	95	(182)
Other comprehensive income (loss) before reclassification adjustment	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Total other comprehensive (loss) income	0	0
Derivative [Member]
Supplemental Comprehensive Income Disclosures [Abstract]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	14,162	(1,455)
Total other comprehensive (loss) income	(14,162)	1,455
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(19,708)	(1,440)	$ (5,546)	$ (2,895)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	14,162	(1,455)
Total other comprehensive (loss) income	(14,162)	1,455
Accumulated Other Comprehensive Income (Loss), net [Member]
Supplemental Comprehensive Income Disclosures [Abstract]
Total other comprehensive (loss) income	(59,392)	(11,035)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income	$ (59,392)	$ (11,035)