Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	$ 227,735	$ 223,048
Accumulated depreciation	(153,100)	(148,728)
Net property and equipment	74,635	74,320	[1]
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	97,711	96,909
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	57,632	56,716
Molds [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	37,236	36,436
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	25,316	23,346
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	3,829	3,638
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	$ 6,011	$ 6,003

[1] December 31, 2015 balances were derived from audited consolidated financial statements.