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Debt (Schedule of Long-term Debt) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Jun. 30, 2015
Debt Instrument [Line Items]    
Mortgage $ 2,960 $ 3,157
Long-term debt including current portion 118,789 110,157
Less current portion 197 10,197
Long-term debt 118,592 99,960
Convertible Senior Notes, net    
Debt Instrument [Line Items]    
Long-term debt including current portion 115,829
Revolving bank loans    
Debt Instrument [Line Items]    
Long-term debt including current portion 45,000
Term bank loans    
Debt Instrument [Line Items]    
Long-term debt including current portion $ 62,000