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		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes			$ 11,963	$ 9,489
Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	1,558	1,352	3,990	3,712
Income tax benefit	(496)	(445)	(1,251)	(1,182)
Total expense after income taxes	1,062	907	2,739	2,530
Stock Option | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	133	99	375	291
Stock Option | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	1,425	1,253	3,615	3,421
Unvested Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	3,271	2,310	6,489	5,372
Income tax benefit	(644)	(609)	(1,331)	(1,319)
Total expense after income taxes	2,627	1,701	5,158	4,053
Unvested Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	693	212	1,165	614
Unvested Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,578	2,098	5,324	4,758
Performance Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	823	216	1,484	405
Income tax benefit	(288)	(77)	(474)	(114)
Total expense after income taxes	535	139	1,010	291
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	$ 823	$ 216	$ 1,484	$ 405