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Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other Significant Noncash Transactions [Line Items]
Capital Lease Obligations	$ 1,331	$ 677
Schedule of Supplemental cash flow information
Interest paid	2,832	3,784
Income taxes paid, net	$ 5,366	$ 8,713

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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