Long-term Debt (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Summary of remaining principal payments under existing debt agreements [Line Items]
Remaining 6 months of 2013	$ 3,300
2014	6,655
2015	6,655
2016	6,673
2017	6,655
2018	168,138
Total	$ 198,076

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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