Accumulated Other Comprehensive Income (Loss) - Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense	$ (11,380)	$ (14,411)	$ (20,370)	$ (30,889)
Provision for income taxes	(32,941)	(28,600)	(60,025)	(69,643)
Net income	$ 119,175	98,960	$ 219,504	245,909
Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Net income		(27)		(27)
Unrealized Gains and (Losses) on Securities Available for Sale | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Securities gains (losses), net		(36)		(36)
Provision for income taxes		9		9
Net income		$ (27)		$ (27)