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Debt (Schedule of Long-term Debt) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Jun. 30, 2014
Apr. 30, 2014
Debt Instrument [Line Items]      
Mortgage $ 3,157 $ 3,355  
Other   146  
Long-term debt including current portion $ 110,157 105,501  
Less current portion 10,197 8,343  
Long-term debt 99,960 97,158  
Revolving bank loans      
Debt Instrument [Line Items]      
Long-term debt including current portion 45,000 32,000  
Term bank loans      
Debt Instrument [Line Items]      
Long-term debt including current portion $ 62,000 $ 70,000 $ 70,000