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Summary by Level of Fair Value of Financial Instruments Measured on Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands
Mar. 31, 2018
Jun. 30, 2017
Assets:    
Foreign currency forward contracts   $ 191
Liabilities:    
Foreign currency forward contracts $ 271  
Contingent earnout arrangements 5,130 5,795
Net put option 2,233  
Fair Value, Inputs, Level 2    
Assets:    
Foreign currency forward contracts   191
Liabilities:    
Foreign currency forward contracts 271  
Fair Value, Inputs, Level 3    
Liabilities:    
Contingent earnout arrangements 5,130 $ 5,795
Net put option $ 2,233