Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic and Diluted Earnings Per Share
Net income available to common stockholders, basic	$ 79,338	$ 75,619	$ 223,525	$ 234,048
Net income available to common stockholders, diluted	$ 79,338	$ 75,619	$ 223,525	$ 234,048
Average outstanding shares - basic (in shares)	110,766,502	95,510,772	110,752,231	95,494,211
Add: dilutive restricted stock units and stock options (in shares)	67,092	75,430	59,036	79,308
Average outstanding shares - diluted (in shares)	110,833,594	95,586,202	110,811,267	95,573,519
Basic earnings per share (in dollars per share)	$ 0.72	$ 0.79	$ 2.02	$ 2.45
Diluted earnings per share (in dollars per share)	$ 0.72	$ 0.79	$ 2.02	$ 2.45
Restricted stock units and stock options excluded from the diluted average outstanding share calculation (in shares)	3,008	0	6,323	0