Stock-Based Compensation, Stock Award and Incentive Plan and Stock Options (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Stock-Based Compensation [Abstract]
Increase in shares available for issuance (in shares)	889,000
Share based compensation costs	$ 11.8	$ 11.3	$ 10.4
Stock Options [Member]
Stock-Based Compensation [Abstract]
Term of stock options granted under Plan	10 years
Vesting period	3 years
Share based compensation costs	$ 5.4	5.2	4.8
Tax benefit of share-based compensation	$ 1.4	$ 1.4	$ 1.3
Forfeiture rate assumed	7.69%	7.91%	8.09%
Weighted average grant date fair value for stock options granted (in dollars per share)	$ 25.33	$ 25.11	$ 24.26
Weighted average grant date fair value for stock options vested (in dollars per share)	$ 23.75	$ 21.56	$ 19.82
Total intrinsic value of stock options exercised	$ 7.0	$ 1.0	$ 2.0
Weighted Average Assumptions [Abstract]
Expected life	6 years 6 months	6 years 4 months 24 days	6 years 8 months 12 days
Interest rate	4.06%	3.51%	1.70%
Volatility	31.93%	32.05%	31.92%
Expected dividend yield	0.61%	0.30%	0.28%
Stock Options [Roll Forward]
Balance, beginning of year (in shares)	1,514,462
Granted (in shares)	196,471
Exercised (in shares)	(279,810)
Canceled (in shares)	(5,487)
Expired (in shares)	0
Balance, end of year (in shares)	1,425,636	1,514,462
Exercisable, end of year (in shares)	997,406
Weighted Average Exercise Price Per Share [Abstract]
Balance, beginning of year (in dollars per share)	$ 63.15
Granted (in dollars per share)	66.72
Exercised (in dollars per share)	55.85
Canceled (in dollars per share)	66.76
Expired (in dollars per share)	0
Balance, end of year (in dollars per share)	65.06	$ 63.15
Exercisable, end of year (in dollars per share)	$ 64.24
Weighted Average Remaining Contractual Life [Abstract]
Outstanding options, end of year	5 years 10 months 17 days
Exercisable options, end of year	4 years 9 months 25 days
Aggregate Intrinsic Value [Abstract]
Outstanding options, end of year	$ 16.1
Exercisable options, end of year	$ 12.1
Additional Information [Abstract]
Closing stock price on last business day of the period (in dollars per share)	$ 76.21
Weighted average intrinsic value of options exercised (in dollars per share)	$ 24.85	$ 7.78	$ 16.34
Nonvested Stock Options [Member]
Stock Options [Roll Forward]
Balance, beginning of year (in shares)	460,141
Granted (in shares)	196,471
Vested (in shares)	(222,895)
Canceled (in shares)	(5,487)
Balance, end of year (in shares)	428,230	460,141
Weighted Average Exercise Price Per Share [Abstract]
Balance, beginning of year (in dollars per share)	$ 67.18
Granted (in dollars per share)	66.72
Vested (in dollars per share)	67.21
Canceled (in dollars per share)	66.76
Balance, end of year (in dollars per share)	$ 66.96	$ 67.18
Additional Information [Abstract]
Unrecognized stock-based compensation expense	$ 5.1
Weighted average period over which unrecognized stock-based compensation expense is expected to be recognized	3 years