Summary of Significant Accounting Policies Property and Equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	$ 182,950,000	$ 169,597,000
Accumulated Depreciation	(99,902,000)	(86,052,000)
Net property and equipment	83,048,000	83,545,000
Depreciation	15,600,000	14,600,000	13,400,000
Government incentive reimbursement	3,500,000	1,800,000
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	73,390,000	62,680,000
Estimated useful life, minimum	2
Estimated useful life, maximum	10
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	60,334,000	57,810,000
Molds [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	24,133,000	22,521,000
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	17,518,000	14,613,000
Estimated useful life, minimum	3
Estimated useful life, maximum	5
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	2,298,000	2,107,000
Estimated useful life, minimum	2
Estimated useful life, maximum	5
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, cost	$ 5,277,000	$ 9,866,000
Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	15
Estimated useful life, maximum	30
Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	15
Estimated useful life, maximum	15