Net Income Per Share - Schedule of Reconciliation of Denominators and Additional Shares that are Excluded from the Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Weighted-average shares:
Basic weighted-average common shares outstanding	34,918	35,753
Total weighted-average shares	34,939	35,869
Earnings per common share—Basic
Net income	$ 61,311	$ 43,306
Net income available to common shareholders—Basic	$ 61,275	$ 43,166
Net income per common share—Basic	$ 1.75	$ 1.21
Basic weighted-average common shares outstanding	34,918	35,753
Effect of diluted shares	1,446	1,996
Diluted weighted-average shares outstanding	36,364	37,749
Net income per common share—Diluted	$ 1.69	$ 1.14
RSAs
Weighted-average shares:
Basic weighted-average common shares outstanding	21	116
Earnings per common share—Basic
Less: Undistributed earnings allocated to RSAs	$ (36)	$ (140)
Basic weighted-average common shares outstanding	21	116
Common Stock
Weighted-average shares:
Basic weighted-average common shares outstanding	34,918	35,753
Earnings per common share—Basic
Basic weighted-average common shares outstanding	34,918	35,753