Net Sales to Major Customers (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue, Major Customer [Line Items]
Net Sales	$ 94,505	$ 95,809
Wal-Mart
Revenue, Major Customer [Line Items]
Net Sales	23,252	27,747
Target
Revenue, Major Customer [Line Items]
Net Sales	12,659	8,334
Toys 'R' Us
Revenue, Major Customer [Line Items]
Net Sales	7,711	8,122
Major Customer
Revenue, Major Customer [Line Items]
Net Sales	$ 43,622	$ 44,203
Net Sales | Customer Concentration Risk
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	46.20%	46.10%
Net Sales | Wal-Mart | Customer Concentration Risk
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	24.60%	28.90%
Net Sales | Target | Customer Concentration Risk
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	13.40%	8.70%
Net Sales | Toys 'R' Us | Customer Concentration Risk
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	8.20%	8.50%