Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

Commitments and Contingencies (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]    
Totaled arrangements under letter of credit guarantees and performance bonds securing performance obligations $ 9,242  
Guarantee obligations secured by cash deposits 1,456  
Guarantee obligations represented by a reduction of the available amount of the company's short term and long term revolving lines of credit 978  
Cash deposits pledged as collateral on performance bonds and letters of credit 1,456 $ 1,408
Indian Custom Bonds Outstanding $ 5,446