Share-Based Compensation (Schedule of Compensation Cost for Stock Options, Unvested Shares and Performance Share Units) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes			$ 16,445	$ 13,464
Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	1,537	1,332	5,527	5,044
Income tax benefit	(492)	(439)	(1,743)	(1,620)
Total expense after income taxes	1,045	893	3,784	3,424
Stock Option | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	126	94	501	385
Stock Option | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	1,411	1,238	5,026	4,659
Unvested Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,102	2,415	8,591	7,786
Income tax benefit	(447)	(551)	(1,778)	(1,864)
Total expense after income taxes	1,655	1,864	6,813	5,922
Unvested Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	259	338	1,424	1,065
Unvested Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	1,843	2,077	7,167	6,721
Performance Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	843	229	2,327	634
Income tax benefit	(294)	(82)	(768)	(195)
Total expense after income taxes	549	147	1,559	439
Performance Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	0	0	0	0
Performance Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 843	$ 229	$ 2,327	$ 634