Segment Reporting - Schedule of Percentages of Revenues Attributable to Patient Management and Network Solutions Services (Detail) - Product Concentration Risk [Member] - Sales Revenue, Services, Net [Member]	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Revenue, Major Customer [Line Items]
Percentage of revenues	100.00%	100.00%	100.00%
Patient Management Services [Member]
Revenue, Major Customer [Line Items]
Percentage of revenues	66.60%	66.60%	65.60%
Network Solutions Services [Member]
Revenue, Major Customer [Line Items]
Percentage of revenues	33.40%	33.40%	34.40%