Summary of Significant Accounting Policies (Details)	12 Months Ended								12 Months Ended				12 Months Ended						12 Months Ended				12 Months Ended
	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Dec. 31, 2011 EUR (€)	Dec. 31, 2011 INR	Dec. 31, 2010 EUR (€)	Dec. 31, 2011 Land and land improvements [Member] USD ($)	Dec. 31, 2010 Land and land improvements [Member] USD ($)	Dec. 31, 2011 Buildings and improvements [Member] USD ($)	Dec. 31, 2010 Buildings and improvements [Member] USD ($)	Dec. 31, 2011 Machinery and equipment [Member] USD ($)	Dec. 31, 2010 Machinery and equipment [Member] USD ($)	Dec. 31, 2011 Machinery and equipment [Member] Minimum [Member]	Dec. 31, 2011 Machinery and equipment [Member] Maximum [Member]	Dec. 31, 2011 Leasehold improvements [Member] USD ($)	Dec. 31, 2010 Leasehold improvements [Member] USD ($)	Dec. 31, 2011 Office equipment [Member] USD ($)	Dec. 31, 2010 Office equipment [Member] USD ($)	Dec. 31, 2011 Office equipment [Member] Minimum [Member]	Dec. 31, 2011 Office equipment [Member] Maximum [Member]	Dec. 31, 2011 Construction in progress [Member] USD ($)	Dec. 31, 2010 Construction in progress [Member] USD ($)	Dec. 31, 2011 Trade Accounts Receivable [Member] USD ($)	Dec. 31, 2010 Trade Accounts Receivable [Member] USD ($)	Dec. 31, 2009 Trade Accounts Receivable [Member] USD ($)	Dec. 31, 2008 Trade Accounts Receivable [Member] USD ($)
Foreign Exchange Risk Management [Abstract]
Foreign currency transactions gain (loss)	$ 400,000	$ 2,100,000	$ 500,000
Derivatives, description of objective	The Company enters into foreign exchange forward contracts to reduce earnings and cash flow volatility associated with foreign exchange rate changes to allow management to focus its attention on its core business operations. Accordingly, the Company enters into contracts which change in value as foreign exchange rates change to economically offset the effect of changes in value of foreign currency assets and liabilities, commitments and anticipated foreign currency denominated sales and operating expenses. The Company enters into foreign exchange forward contracts in amounts between minimum and maximum anticipated foreign exchange exposures, generally for periods not to exceed one year. These derivative instruments are not designated as accounting hedges.
Derivative, Notional Amount				50,000,000	108,800,000	30,000,000
Allowance for doubtful accounts [Roll Forward]
Balance at Beginning of Year																							1,547,000	685,000	851,000	686,000
Additions																							1,091,000	260,000	740,000
Write-offs and Recoveries																							229,000	426,000	575,000
Balance at End of Year																							1,547,000	685,000	851,000	686,000
Inventories [Abstract]
Raw materials	8,533,000	9,459,000
Work-in-process	65,645,000	49,825,000
Finished goods	43,095,000	34,974,000
Total	117,273,000	94,258,000
Production Tooling [Abstract]
Production tooling, amortization period	three to nine months
Production tooling expense	23,500,000	12,400,000
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	428,562,000	403,268,000					18,550,000	18,902,000	117,961,000	97,076,000	233,702,000	209,334,000			8,482,000	8,401,000	37,906,000	32,269,000			11,961,000	37,286,000
Accumulated depreciation and amortization	(185,186,000)	(159,587,000)
Property, plant and equipment, net, Total	243,376,000	243,681,000
Property, plant and equipment, useful life									30 years				3 years	12 years					3 years	5 years
Property, plant and equipment, useful life, description															Shorter of 10 years or the term of lease
Property repairs and maintenance expense	11,200,000	10,800,000	10,900,000
Depreciation expense	$ 32,000,000	$ 30,400,000	$ 34,600,000