Cash, Cash Equivalents, and Restricted Cash - Composition of Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Cash and Cash Equivalents [Abstract]
Compensating balance for short-term borrowings	$ 893	$ 1,225
Escrow	1,450	2,894
Other	532	1,648
Total	$ 2,875	$ 5,767	$ 3,373	$ 2,309