Revenue Recognition - Schedule of Revenues Disaggregated by Service Line (Detail) - USD ($)	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Disaggregation Of Revenue [Line Items]
Total services	$ 211,722,000	$ 190,253,000
Patient Management Services [Member]
Disaggregation Of Revenue [Line Items]
Total services	139,172,000	127,838,000
Network Solutions Services [Member]
Disaggregation Of Revenue [Line Items]
Total services	$ 72,550,000	$ 62,415,000