Per Share Information	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Per Share Information	Per Share InformationEarnings per common share are computed based on the weighted average number of shares of common stock outstanding during the period and reduced for shares held in treasury. The dilutive effect of outstanding stock-based awards, consisting of RSUs with respect to 11,893 shares for the three months ended March 31, 2022, and both RSUs and stock options with respect to 17,697 shares for the same period last year, did not result in material dilution and is not included in the calculation.