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Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 29, 2018
Jun. 30, 2018
Sep. 30, 2018
Jun. 30, 2017
Sep. 16, 2015
Related Party Transaction [Line Items]          
Gain on sale of other assets   $ 2,883 $ 2,883    
SoLayTec, B.V.          
Related Party Transaction [Line Items]          
Due to related party       $ 2,400  
Kingstone Hong Kong          
Related Party Transaction [Line Items]          
Ownership percentage         15.00%
Remaining ownership percentage disposed of 15.00%        
Proceeds from sale of business $ 5,700        
Gain on sale of other assets     $ 2,900