Debt Schedule of Long-Term Debt Repayments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 22,373	$ 51,250
Secured Debt [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt	22,373	51,250
Term loan
Debt Instrument [Line Items]
Repayments of Long-term Debt	7,500	11,250
Multicurrency revolving line of credit
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 14,873	$ 40,000