Schedule of Compensation Cost for Stock Options and Unvested Shares (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 13,102	$ 12,076		$ 17,358
Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	6,292	6,958		7,727
Income tax benefit	(1,988)	(2,208)		(2,450)
Total expense after income taxes	4,304	4,750		5,277
Stock Option | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	650	805		804
Stock Option | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	5,642	6,153		6,923
Unvested Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	6,810	5,118	[1]	9,631
Income tax benefit	(1,682)	(1,827)	[1]	(2,097)
Total expense after income taxes	5,128	3,291	[1]	7,534
Unvested Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	991	684		311
Unvested Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	5,819	4,434	[1]	8,382
Unvested Shares | Restructuring Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes				$ 938

[1] Reflects the forfeiture of unvested shares related to the Company's transition to a new CEO in August 2011.