Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule of Accrued Liabilities [Line Items]
Royalties	$ 20,887	$ 22,193
Sales commissions	1,594	617
Bonuses	780	1,020
Professional fees	4,791	1,924
Acquisition earn-out	6,000	4,634
Salaries and employee benefits	3,891	2,497
Interest expense	1,055	750
Unearned revenue	1,057	760
Molds and tools	2,225	1,746
Reorganization costs	2,241	3,484
Media expense	5,602	2,106
Inventory liabilities	4,395	3,319
Other	9,159	5,730
Accrued expenses	$ 63,677	$ 50,780