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Correction of Prior Year Interim Consolidated Financial Statements (Details 2) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Consolidated statements of cash flows    
Net income (loss) $ 18,753 $ 18,932
Deferred income tax 38 546
Net cash provided (used) by operating activities $ (2,394) 17,360
As reported    
Consolidated statements of cash flows    
Net income (loss)   20,481
Deferred income tax   (1,003)
Net cash provided (used) by operating activities   17,360
Correction    
Consolidated statements of cash flows    
Net income (loss)   (1,549)
Deferred income tax   $ 1,549
Net cash provided (used) by operating activities