Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Weighted Average Option Fair Values and Assumptions

Weighted average option fair values and assumptions for the period specified are disclosed in the following table:

	Years Ended December 31,
	2014	2013	2012
Weighted average fair value of grants	$19.52	$12.97	$11.40
Dividend yield	1.27%	1.57%	1.59%
Volatility	30.36%	30.92%	32.00%
Risk-free interest rate	0.12% - 4.65%	0.17% - 4.12%	0.17% - 3.96%
Expected life (in years)	5.89	5.86	5.98

Schedule of Weighted Average Performance Share Units Fair Values and Assumptions

Weighted average performance share unit fair values and assumptions for the period specified are disclosed in the following table:

	Years Ended December 31,
	2014	2013
Weighted average fair value of grants	$94.55	$59.58
Dividend yield	—%	—%
Volatility	26.41%	28.99%
Risk-free interest rate	0.65%	0.40%
Expected life (in years)	2.88	2.87

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Total compensation cost for performance share units is as follows:

	Years Ended December 31,
	2014			2013
	(In thousands)
Cost of goods sold	$	—		$	—
Selling, general and administrative expenses	3,220			873
Total expense before income taxes	3,220			873
Income tax benefit	(1,081		)	(280		)
Total expense after income taxes	$	2,139		$	593

Schedule of Stock Option Activity

A summary of the Company’s stock option activity as of December 31, 2014, and changes during the year ended December 31, 2014 is presented in the following table:

Stock Options	Shares		Weighted Average Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at January 1, 2014	2,516,618		$	39.60	6.87	$	86,200,655
Granted	514,905		72.77
Exercised	(489,047	)	34.59
Forfeited	(163,917	)	52.59
Outstanding at December 31, 2014	2,378,559		$	46.91	6.69	$	73,561,785
Vested and expected to vest at December 31, 2014	2,279,445		$	46.24	6.60	$	72,026,247
Exercisable at December 31, 2014	1,157,805		$	36.70	5.17	$	47,631,234

Schedule of Unvested Share Activity

A summary of the Company’s unvested share activity as of December 31, 2014, and changes during the year ending December 31, 2014 is presented in the following table:

Unvested Shares	Shares		Weighted-Average Grant Date Fair Value
Unvested at January 1, 2014	618,679		$	50.33
Granted	146,360		74.10
Vested	(215,576	)	45.10
Forfeited	(70,799	)	57.83
Unvested at December 31, 2014	478,664		$	59.71

Schedule of Performance Share Units Activity

A summary of the Company's performance share unit activity as of December 31, 2014, and changes during the year ending December 31, 2014 is presented in the following table:

Performance Share Units	Shares		Weighted-Average Grant Date Fair Value
Unvested at January 1, 2014	53,205		$	59.98
Granted	91,030		94.55
Vested	—		—
Forfeited	(8,695	)	78.26
Unvested at December 31, 2014	135,540		$	81.87

Stock Option

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Compensation Cost for Stock Options and Unvested Shares

Total compensation cost for stock options is as follows:

	Years Ended December 31,
	2014			2013			2012
	(In thousands)
Cost of goods sold	$	581		$	479		$	650
Selling, general and administrative expenses	6,245			5,789			5,642
Total expense before income taxes	6,826			6,268			6,292
Income tax benefit	(2,194		)	(2,016		)	(1,988		)
Total expense after income taxes	$	4,632		$	4,252		$	4,304

Unvested Shares

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Compensation Cost for Stock Options and Unvested Shares

Total compensation cost for unvested shares is as follows:

	Years Ended December 31,
	2014			2013			2012
	(In thousands)
Cost of goods sold	$	1,753		$	1,380		$	991
Selling, general and administrative expenses	8,917			8,471			5,819
Total expense before income taxes	10,670			9,851			6,810
Income tax benefit	(2,233		)	(2,296		)	(1,682		)
Total expense after income taxes	$	8,437		$	7,555		$	5,128