Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other comprehensive income/(loss), tax (benefit) expense	$ 41,300,000	$ 6,700,000	$ 11,500
Reclassifications to earnings of realized gains/(losses) on available-for-sale securities	0	$ 0	$ 0
Cumulative gain recognized on hedges	98,300,000
Cumulative gain recognized on hedges, Net of tax	$ 23,300,000