XML 80 R68.htm IDEA: XBRL DOCUMENT v3.8.0.1
Fair Value Measurements - Additional Information (Detail)
$ in Millions
 6 Months Ended
Sep. 30, 2017
USD ($)
Contract
Mar. 31, 2017
USD ($)
Contract
Derivatives, Fair Value [Line Items]    
Cash equivalents maturity period, days 90 days  
Number of contracts outstanding | Contract 44  
Notional value of foreign exchange contract | $ $ 1.9  
Predecessor    
Derivatives, Fair Value [Line Items]    
Number of contracts outstanding | Contract   6
Notional value of foreign exchange contract | $   $ 1.5