Selected Financial Statement Information - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts receivable, net:
Trade accounts receivable	$ 142,932	$ 129,400
Allowance for sales returns	(9,341)	(8,148)	$ (8,944)	$ (7,334)
Allowance for doubtful accounts	(5,728)	(5,645)	$ (6,460)	$ (11,655)
Accounts receivable, net	127,863	115,607
Inventories:
Raw materials	46,451	53,876
Work-in-process	739	703
Finished goods	142,210	154,304
Inventory	189,400	208,883
Property, plant and equipment, net:
Land	7,251	7,260
Buildings and improvements	67,945	63,754
Machinery and equipment	110,799	107,495
Furniture, computers and equipment	102,421	96,674
Production molds	19,843	19,478
Construction-in-process	4,724	5,507
Property, plant and equipment, gross	312,983	300,168
Accumulated depreciation	(258,508)	(244,360)
Property, plant and equipment, net	54,475	55,808
Accounts payable and accrued expenses:
Accounts payable	54,574	54,789
Accrued expenses	57,478	46,933
Accrued goods in-transit	20,469	20,898
Accounts payable and accrued expenses	132,521	122,620
Accrued employee compensation and benefits:
Accrued payroll and taxes	23,133	24,118
Accrued vacation and sick pay	8,722	8,408
Accrued commissions	713	992
Accrued employee compensation and benefits	$ 32,568	$ 33,518