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Operating Lease Commitments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Year ended December 31,
2013	$ 6,437
2014	4,956
2015	3,668
2016	1,647
2017	1,604
Thereafter	1,538
Total	$ 19,850

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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