Net Income Per Common Share (Schedule of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic Net Income Per Common Share:
Net income available to common shareholders	$ 194,753	$ 178,482	$ 527,260	$ 535,193
Weighted average common shares outstanding (in shares)	145,386	146,308	145,329	147,622
Net income per common share, basic (in dollars per share)	$ 1.34	$ 1.22	$ 3.63	$ 3.63
Diluted Net Income Per Common Share:
Net income available to common shareholders	$ 194,753	$ 178,482	$ 527,260	$ 535,193
Weighted average common shares outstanding (in shares)	145,386	146,308	145,329	147,622
Effect of dilutive outstanding equity-based awards, warrants, and earnout payments (in shares)	1,032	1,393	1,136	1,447
Weighted average number of diluted common shares (in shares)	146,418	147,701	146,465	149,069
Net income per common share, diluted (in dollars per share)	$ 1.33	$ 1.21	$ 3.60	$ 3.59