XML 59 R48.htm IDEA: XBRL DOCUMENT v3.5.0.2
Financial Risk Management and Derivatives (Details) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Mar. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]          
Forward foreign currency exchange contracts included in other current liabilities $ 1,602,000   $ 1,602,000   $ 416,000
Forward Foreign Currency Exchange Contracts [Member]          
Derivative Instruments, Gain (Loss) [Line Items]          
Notional amount of foreign currency derivatives 27,011,000   27,011,000   $ 18,917,000
Forward Foreign Currency Exchange Contracts [Member] | General and Administrative Expenses [Member]          
Derivative Instruments, Gain (Loss) [Line Items]          
Forward foreign currency exchange contracts $ (507,000) $ (527,000) $ (1,186,000) $ (349,000)