Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Leases [Abstract]
Operating leases, expiration period	3 years
Capital lease, expiration period	3 years
Rent expense	$ 15,377	$ 15,871	$ 20,166
Operating and Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017	8,578
2018	5,899
2019	2,931
2020	1,733
2021	1,161
Thereafter	1,575
Total minimum lease payments	$ 21,877