Stock-Based Compensation - Stock Option Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Options
Beginning balance (in shares)	670	1,419	2,654
Granted (in shares)	0	0	0
Exercised (in shares)	(307)	(720)	(1,180)
Forfeited (in shares)	0	(29)	(55)
Ending balance (in shares)	363	670	1,419
Weighted Average Exercise Price
Options outstanding, beginning (in dollars per share)	$ 27.43	$ 23.61	$ 19.72
Granted (in dollars per share)	0	0	0
Exercised (in dollars per share)	19.16	19.82	14.15
Forfeited (in dollars per share)	0	29.50	39.27
Options outstanding, ending (in dollars per share)	$ 34.42	$ 27.43	$ 23.61