Intangible Assets - Intangible Assets, Other than Capitalized Software Development Costs (Details) - Intangible Assets Other Than Capitalized Software - USD ($) $ in Thousands	Sep. 30, 2023	Mar. 31, 2023
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 75,650	$ 78,850
Accumulated amortization	(51,170)	(49,882)
Total	24,480	28,968
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	44,700	44,700
Accumulated amortization	(34,489)	(32,918)
Total	10,211	11,782
Trade Names
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	250	250
Accumulated amortization	(191)	(166)
Total	59	84
Computer Software, Intangible Asset
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	22,500	25,700
Accumulated amortization	(14,646)	(16,060)
Total	7,854	9,640
Re-acquired Rights
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	6,250	6,250
Accumulated amortization	(1,302)	(521)
Total	4,948	5,729
Data Health Database
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	1,950	1,950
Accumulated amortization	(542)	(217)
Total	$ 1,408	$ 1,733