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Statements of Operations-Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2015
Mar. 31, 2015
 [1]
Dec. 31, 2014
 [2]
Sep. 30, 2014
 [2]
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Depreciation and amortization                      
Depreciation of property, plant and equipment                 $ 16,813 $ 16,439 $ 14,917
Amortization of intangible assets                 4,560 4,897 4,106
Amortization of other assets                 231 117  
Depreciation and amortization $ 5,654 $ 5,356 $ 5,241 $ 5,353 $ 5,838 $ 5,122 $ 5,292 $ 5,201 21,604 21,453 19,023
Research and development expenditures                 9,511 8,212 6,638
Interest expense                      
Acquisition related accrued interest                 613    
Amortization of deferred financing fees, debt discount and imputed interest                 967 1,448 2,426
Other                 339 383 505
Interest expense                 14,554 33,081 $ 35,771
Term B Loans                      
Interest expense                      
Interest expense                 11,717 2,419  
Revolving credit facility                      
Interest expense                      
Interest expense                 $ 918 171  
Domestic senior credit facility                      
Interest expense                      
Interest expense                   1,328 $ 1,250
Senior notes                      
Interest expense                      
Interest expense                   24,281 27,750
Mayflower, BFI and Teva term loans                      
Interest expense                      
Interest expense                   $ 3,051 $ 3,840
[1] (Restated)
[2] (Revised)