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Commitments and Contingencies (Detail Textuals)
$ in Thousands
1 Months Ended 12 Months Ended
Sep. 30, 2012
PRPs
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Commitments And Contingencies [Line Items]        
Operating leases, rent expense   $ 7,715 $ 8,131 $ 7,240
Number of potentially responsible parties | PRPs 140      
Term of employment and severance agreement   up to 15 months    
Insurance settlement        
Commitments And Contingencies [Line Items]        
Gain in selling, general and administrative expenses   $ 7,500    
Current and long-term liabilities        
Commitments And Contingencies [Line Items]        
Accrual for environmental loss contingencies payments   $ 7,211 $ 7,024