Accumulated Other Comprehensive Income (Loss) - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains on sales of available for sale securities	$ 90	$ 1,761	$ 656	$ 3,560
Interest expense - subordinated debentures and term loans	2,016	1,659	3,675	3,316
Income tax expense	(3,879)	(10,294)	(11,145)	(19,246)
Total reclassifications for the period, net of tax	38,991	55,559	87,577	105,028
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the Period
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period, net of tax	(70)	1,186	188	2,407
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the Period | Unrealized gains (losses) on available for sale securities
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains on sales of available for sale securities	90	1,761	656	3,560
Income tax expense	(19)	(370)	(138)	(748)
Total reclassifications for the period, net of tax	71	1,391	518	2,812
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the Period | Unrealized gains (losses) on cash flow hedges
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	37	55	88	108
Total reclassifications for the period, net of tax	(141)	(205)	(330)	(405)
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the Period | Unrealized gains (losses) on cash flow hedges | Interest rate contracts
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Interest expense - subordinated debentures and term loans	$ (178)	$ (260)	$ (418)	$ (513)