Stock-Based Employee Compensation (Options Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Number of Options
Outstanding, beginning balance (in shares)	49,647
Granted (in shares)	0
Exercised (in shares)	(49,647)
Canceled (in shares)	0
Outstanding, ending balance (in shares)	0	49,647
Vested at December 31, 2020 (in shares)	0
Options Exercisable at December 31, 2020 (in shares)	0
Weighted-Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 46.18
Granted (in dollars per share)	0
Exercised (in dollars per share)	46.18
Canceled (in dollars per share)	0
Outstanding, ending balance (in dollars per share)	0	$ 46.18
Vested at December 31, 2020 (in dollars per share)	0
Options Exercisable at December 31, 2020 (in dollars per share)	$ 0
Weighted-Average Remaining Contractual Term
Outstanding (Years)		1 month 9 days
Aggregate Intrinsic Value
Outstanding	$ 0	$ 1,355
Vested at December 31, 2020	0
Options Exercisable at December 31, 2020	$ 0