Annual report pursuant to Section 13 and 15(d)

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

v3.19.2
Fair Value Measurements - Foreign Exchange Contracts by Currency (Details) - Foreign Exchange Forward Contracts [Member] - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Derivative [Line Items]      
Gain (loss) on realized on foreign currency related to forward contracts $ (125) $ (96) $ (453)
Notional amount 7,400 18,716  
United Kingdom, Pounds      
Derivative [Line Items]      
Notional amount 3,000 0  
Russian Rubles [Member]      
Derivative [Line Items]      
Notional amount 0 2,416  
Euro [Member]      
Derivative [Line Items]      
Notional amount 0 750  
Canada, Dollars      
Derivative [Line Items]      
Notional amount 1,500 4,000  
South Korean Won [Member]      
Derivative [Line Items]      
Notional amount 2,000 10,500  
Mexico, Pesos      
Derivative [Line Items]      
Notional amount 0 200  
Australia, Dollars      
Derivative [Line Items]      
Notional amount $ 900 $ 850