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Revenue Recognition - Schedule of Revenues Disaggregated by Service Line (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation Of Revenue [Line Items]
Total services	$ 239,643,000	$ 224,380,000	$ 474,354,000	$ 436,102,000
Patient Management Services [Member]
Disaggregation Of Revenue [Line Items]
Total services	150,795,000	147,173,000	297,563,000	286,345,000
Network Solutions Services [Member]
Disaggregation Of Revenue [Line Items]
Total services	$ 88,848,000	$ 77,207,000	$ 176,791,000	$ 149,757,000

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