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
	Mar. 31, 2014	Mar. 31, 2013
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 6,312	$ 5,612
Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,432	2,361
Income tax benefit	(755)	(737)
Total expense after income taxes	1,677	1,624
Stock Option | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	242	192
Stock Option | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,190	2,169
Unvested Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	3,218	3,062
Income tax benefit	(687)	(715)
Total expense after income taxes	2,531	2,347
Unvested Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	472	402
Unvested Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,746	2,660
Performance Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	661	189
Income tax benefit	(186)	(37)
Total expense after income taxes	475	152
Performance Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	0	0
Performance Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 661	$ 189