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Long-Term Debt (Details 1) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Stated interest rate on Secured Term Loan  
Variable interest rate, Stated Interest Rate 3.47%
Variable interest rate, Principal Balance $ 46,875
Fixed interest rate, Stated Interest Rate 5.15%
Fixed interest rate, Principal Balance 23,438
Weighted-average interest rate, Stated Interest Rate 4.03%
Weighted-average interest rate, Principal Balance $ 70,313