Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Foreign Exchange Contracts by Currency (Details)

v3.8.0.1
Fair Value Measurements - Foreign Exchange Contracts by Currency (Details) - Foreign Exchange Forward Contracts - USD ($)
$ in Thousands
Sep. 30, 2017
Mar. 31, 2017
Derivatives [Line Items]    
Notional amount $ 5,450 $ 2,375
Russian Ruble    
Derivatives [Line Items]    
Notional amount 2,000 250
Euro    
Derivatives [Line Items]    
Notional amount 500 0
South Korean Won    
Derivatives [Line Items]    
Notional amount 2,000 1,300
Mexican Peso    
Derivatives [Line Items]    
Notional amount 450 450
Australian Dollar    
Derivatives [Line Items]    
Notional amount $ 500 $ 375