Intangible assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying amount	$ 45,212	$ 38,420
Accumulated amortization	(24,752)	(20,117)
Net	20,460	18,303
Patents and trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying amount	105	115
Accumulated amortization	(70)	(82)
Net	$ 35	33
Patents and trademarks | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	3 years
Patents and trademarks | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	20 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying amount	$ 2,772	2,687
Accumulated amortization	(2,528)	(2,271)
Net	$ 244	416
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	2 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	15 years
Internal-use software, technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying amount	$ 42,335	35,618
Accumulated amortization	(22,154)	(17,764)
Net	$ 20,181	$ 17,854
Internal-use software, technology and other | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	1 year
Internal-use software, technology and other | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	18 years