Stock Based Compensation (Restricted Stock Units Activity) (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares, Outstanding at Beginning of Year	222,898
Shares, Granted	239,249
Shares, Vested	(268,423)
Shares, Canceled	(13,893)
Shares, Outstanding at End of Year	179,831	222,898
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Shares, Outstanding at Beginning of Year, Weighted Average Grant Date Fair Value	$ 54.21
Shares, Granted, Weighted Average Grant Date Fair Value	58.02	$ 58.85	$ 56.24
Shares, Vested, Weighted Average Grant Date Fair Value	55.00
Shares, Canceled, Weighted Average Grant Date Fair Value	57.80
Shares, Outstanding at End of Year, Weighted Average Grant Date Fair Value	$ 57.83	$ 54.21
Shares, Outstanding at End of Year, Weighted Average Remaining Years Contractual Term	1 year 2 months 12 days
Shares, Outstanding at End of Year, Aggregate Intrinsic Value	$ 12,000,123