Share-Based Compensation (Schedule of Compensation Cost for Stock Options, Unvested Shares and Performance Share Units) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes			$ 14,735	$ 16,445
Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 1,388	$ 1,537	5,428	5,527
Income tax benefit	(440)	(492)	(1,709)	(1,743)
Total expense after income taxes	948	1,045	3,719	3,784
Stock Option | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	91	126	441	501
Stock Option | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	1,297	1,411	4,987	5,026
Unvested Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	651	2,102	5,829	8,591
Income tax benefit	(212)	(447)	(1,490)	(1,778)
Total expense after income taxes	439	1,655	4,339	6,813
Unvested Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	38	259	778	1,424
Unvested Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	613	1,843	5,051	7,167
Performance Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	953	843	3,478	2,327
Income tax benefit	(323)	(294)	(1,161)	(768)
Total expense after income taxes	630	549	2,317	1,559
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	$ 953	$ 843	$ 3,478	$ 2,327