Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Income Tax Benefit Recognized for our Share-Based Compensation Arrangements

Compensation cost charged against income, primarily selling, general and administrative expense, and the income tax benefit recognized for our share-based compensation arrangements is included below: 

	Years Ended December 31,
	2020		2019		2018
	(In thousands)
Total share-based compensation cost	$	19,171	$	16,802	$	17,143
Income tax benefit	4,563		3,999		4,080

Fair Values for SARs and Stock Options Estimated on Grant Date Using Black-Scholes-Merton Option-Pricing Formula Which Incorporates Assumptions

	Years Ended December 31,
	2020			2019			2018
	(In thousands, except weighted average fair value and assumptions)
Weighted-average fair value of SARs and options granted	$	18.29		$	22.31		$	25.19
Total intrinsic value of SARs converted and options exercised	545			354			2,263
Tax benefit (expense) related to share-based compensation	(560)			(101)			113
Weighted-average fair value of restricted stock shares and units granted	41.75			64.61			72.54
Total fair value of restricted stock shares and units vested	6,600			10,325			5,740
Expected volatility	37.55		%	35.05		%	33.16		%
Expected term (in years)	5.7			5.7			5.6
Risk-free rate	1.44		%	2.56		%	2.70		%
Dividend yield	0.39		%	0.32		%	0.27		%

Summary of Share Based Compensation Activity

	SARs and Stock Options						Restricted Shares and Units
	Number	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value		Number	Weighted- Average Grant-Date Fair Value
	(In thousands, except exercise prices, fair values, and contractual terms)
Outstanding at January 1, 2020	1,367	$	65.04	n/a	n/a		737	$	68.31
Granted	149	51.14		n/a	n/a		565	41.75
Exercised or converted	(38)	38.24		n/a	n/a		(102)	64.56
Forfeited or expired	(167)	66.42		n/a	n/a		(247)	75.07
Outstanding at December 31, 2020	1,311	$	64.06	5.7	$	(29,054)	953	$	52.50
Vested or expected to vest at December 31, 2020	1,266	$	64.09	5.7	$	(28,096)
Exercisable or convertible at December 31, 2020	1,021	$	62.62	5.5	$	(24,060)