Revenue - Summary of Revenue By Category (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Disaggregation Of Revenue [Line Items]
Revenue	$ 219,638	$ 299,489	$ 271,893
Service
Disaggregation Of Revenue [Line Items]
Revenue	191,816	265,840	257,749
Service | Point in Time
Disaggregation Of Revenue [Line Items]
Revenue	175,596	217,827	205,002
Service | Over Time
Disaggregation Of Revenue [Line Items]
Revenue	44,042	81,662	66,891
PGS
Disaggregation Of Revenue [Line Items]
Revenue	167,744	202,414	202,681
PGS | Point in Time
Disaggregation Of Revenue [Line Items]
Revenue	145,113	182,866	189,703
PGS | Over Time
Disaggregation Of Revenue [Line Items]
Revenue	22,631	19,548	12,978
Telehealth
Disaggregation Of Revenue [Line Items]
Revenue	34,567	44,722	19,207
Telehealth | Point in Time
Disaggregation Of Revenue [Line Items]
Revenue	26,486	34,961	15,299
Telehealth | Over Time
Disaggregation Of Revenue [Line Items]
Revenue	8,081	9,761	3,908
Consumer services
Disaggregation Of Revenue [Line Items]
Revenue	202,311	247,136	221,888
Consumer services | Point in Time
Disaggregation Of Revenue [Line Items]
Revenue	171,599	217,827	205,002
Consumer services | Over Time
Disaggregation Of Revenue [Line Items]
Revenue	30,712	29,309	16,886
Research services
Disaggregation Of Revenue [Line Items]
Revenue	17,327	52,353	50,005
Research services | Point in Time
Disaggregation Of Revenue [Line Items]
Revenue	3,997	0	0
Research services | Over Time
Disaggregation Of Revenue [Line Items]
Revenue	13,330	52,353	50,005
Therapeutics
Disaggregation Of Revenue [Line Items]
Revenue	$ 0	$ 0	$ 0
Product Concentration Risk | Revenue
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
Product Concentration Risk | Revenue | Service | Point in Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	80.00%	73.00%	76.00%
Product Concentration Risk | Revenue | Service | Over Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	20.00%	27.00%	24.00%
Product Concentration Risk | Revenue | PGS
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	76.00%	68.00%	75.00%
Product Concentration Risk | Revenue | PGS | Point in Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	66.00%	61.00%	70.00%
Product Concentration Risk | Revenue | PGS | Over Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	10.00%	7.00%	5.00%
Product Concentration Risk | Revenue | Telehealth
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	16.00%	15.00%	7.00%
Product Concentration Risk | Revenue | Telehealth | Point in Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	12.00%	12.00%	6.00%
Product Concentration Risk | Revenue | Telehealth | Over Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	4.00%	3.00%	1.00%
Product Concentration Risk | Revenue | Consumer services
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	92.00%	83.00%	82.00%
Product Concentration Risk | Revenue | Consumer services | Point in Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	78.00%	73.00%	76.00%
Product Concentration Risk | Revenue | Consumer services | Over Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	14.00%	10.00%	6.00%
Product Concentration Risk | Revenue | Research services
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	8.00%	17.00%	18.00%
Product Concentration Risk | Revenue | Research services | Point in Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	2.00%	0.00%	0.00%
Product Concentration Risk | Revenue | Research services | Over Time
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	6.00%	17.00%	18.00%