Net Sales to Major Customers (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue, Major Customer [Line Items]
Net sales to major customer	$ 171,350	$ 146,396	$ 256,312	$ 221,624
Wal-Mart
Revenue, Major Customer [Line Items]
Net sales to major customer	81,731	74,759	115,295	108,990
Target
Revenue, Major Customer [Line Items]
Net sales to major customer	55,849	42,162	79,954	65,676
Toys 'R' Us
Revenue, Major Customer [Line Items]
Net sales to major customer	$ 33,770	$ 29,475	$ 61,063	$ 46,958
Net Sales
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	49.10%	47.20%	46.10%	44.80%
Net Sales | Wal-Mart
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	23.40%	24.10%	20.70%	22.00%
Net Sales | Target
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	16.00%	13.60%	14.40%	13.30%
Net Sales | Toys 'R' Us
Revenue, Major Customer [Line Items]
Percentage of Net Sales from major customer	9.70%	9.50%	11.00%	9.50%