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Debt - Aggregate maturities of long-term debt (Details 1) - USD ($)
$ in Thousands
Jun. 30, 2015
Jun. 30, 2014
Debt Disclosure [Abstract]    
2016 $ 2,913  
2017 2,905  
2018 2,900  
2019 2,900  
2020 2,900  
Thereafter 272,600  
Total $ 287,118 $ 290,094