Stock Based Compensation (Performance Units Information) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Performance Share Risk Free Rate Assumption	4.24%	1.76%	0.22%
Performance Share Volatility Rate Assumption	25.09%	27.34%	27.31%
Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period for recognizing unrecognized compensation cost	1 year 7 months 6 days
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	397,010
Shares, Granted	388,658
Shares, Vested	(253,289)
Shares, Canceled	(49,963)
Shares, Outstanding at End of Year	482,416	397,010
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	$ 67.65
Shares, Granted, Weighted Average Grant Date Fair Value	67.99	$ 68.90	$ 65.57
Shares, Vested, Weighted Average Grant Date Fair Value	66.81
Shares, Cancelled, Weighted Average Grant Date Fair Value	68.20
Shares, Outstanding at End of Year, Weighted Average Grant Date Fair Value	$ 68.31	$ 67.65
Shares, Outstanding at End of Year, Weighted Average Remaining Years Contractual Term	1 year 7 months 6 days
Shares, Outstanding at End of Year, Aggregate Intrinsic Value	$ 29,499,703
Performance Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Options vesting period	3 years