Debt Schedule of Long-Term Debt Repayments (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 53,125		$ 101,252
Secured Debt [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt	53,125		101,252
Term loan
Debt Instrument [Line Items]
Repayments of Long-term Debt	13,125		11,252
Multicurrency revolving line of credit (1)
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 40,000	[1]	$ 90,000	[1]

[1] We borrowed $35.0 million and $70.0 million under the multicurrency revolving line of credit during the nine months ended September 30, 2013 and 2012.