Income Taxes - Summary of Reconciliation in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Liability for unrecognized tax benefits	$ 2,894	$ 2,419
Additions for prior year tax positions	1,372	1,405
Additions for current year tax positions	781
Reductions for prior year tax positions	(855)	(930)
Liability for unrecognized tax benefits	$ 4,192	$ 2,894