XML 82 R70.htm IDEA: XBRL DOCUMENT v3.19.2
DERIVATIVE FINANCIAL INSTRUMENTS Narrative (Details) - 12 months ended Mar. 31, 2018
£ in Millions, $ in Millions
USD ($)
GBP (£)
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Notional Amount | £   £ 5
Foreign exchange contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred | $ $ (0.3)