Financial Instruments (Details) (USD $)						12 Months Ended					12 Months Ended
	Dec. 31, 2013 Senior notes Senior Secured Notes	Dec. 31, 2012 Senior notes Senior Secured Notes	Mar. 18, 2011 Senior notes Senior Secured Notes	Dec. 31, 2013 Fair Value, Inputs, Level 2 Senior notes Senior Secured Notes	Dec. 31, 2012 Fair Value, Inputs, Level 2 Senior notes Senior Secured Notes	Dec. 31, 2013 Operating Expense European Engineered Products U.K.	Dec. 31, 2013 Not Designated as Hedging Instrument Foreign Exchange Contract	Dec. 31, 2012 Not Designated as Hedging Instrument Foreign Exchange Contract	Dec. 31, 2013 Not Designated as Hedging Instrument Foreign Exchange Contract Fair Value, Inputs, Level 2 Accrued Liabilities	Dec. 31, 2012 Not Designated as Hedging Instrument Foreign Exchange Contract Fair Value, Inputs, Level 2 Accrued Liabilities	Dec. 31, 2013 Not Designated as Hedging Instrument Foreign Exchange Contract Other Income	Dec. 31, 2012 Not Designated as Hedging Instrument Foreign Exchange Contract Other Income	Dec. 30, 2011 Not Designated as Hedging Instrument Foreign Exchange Contract Other Income
Derivatives, Fair Value [Line Items]
Gain (Loss) on Derivative, Net											$ 364,000	$ 289,000	$ (613,000)
Derivative liability fair value									(200,000)	(200,000)
Derivative notional amount							9,400,000	9,000,000
Capitalized computer software, impairments						1,100,000
Debt instrument, face amount	375,000,000	375,000,000	375,000,000
Long-term debt, fair value				$ 375,000,000	$ 348,800,000