Earnings per Share (Schedule of Earnings per Share, Basic and Diluted) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Weighted Average Number of Shares Outstanding, Basic	61,232	62,754	65,942
Effect of dilutive stock options and restricted stock units	192	216	473
Weighted Average Number of Shares Outstanding, Diluted, Total	61,424	62,970	66,415
Earnings Per Share, Basic	$ 4.11	$ 4.96	$ 5.37
Earnings Per Share, Diluted	$ 4.09	$ 4.95	$ 5.33