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Stock-Based Compensation - Narrative (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mar. 31, 2013
Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares reserved for issuance in the Long-Term Incentive Plan 1,700,000   1,700,000    
LLC Units [Member]
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation vesting period     3 years    
Stock compensation expense $ 2,077 $ 32 $ 2,141 $ 95  
Unrecognized compensation cost $ 3,025   $ 3,025   $ 670