Accumulated Other Comprehensive Income (Loss) - Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reclassifications out of accumulated other comprehensive income, net of tax
Provision for income taxes	$ 40,478	$ 34,495	$ 78,940	$ 73,591
Net income	$ 132,370	$ 123,447	$ 247,426	263,373
Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income, net of tax
Net income				(33)
Gains on sales of available for sale securities | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income, net of tax
Securities gains, net				(45)
Provision for income taxes				12
Net income				$ (33)