Composition of Certain Financial Statement Captions - Summary of Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021
Other Liabilities [Abstract]
Accrued legal expense	$ 9,186	$ 6,302
Accrued hosting costs	8,006	6,158
Care services liabilities	7,048	5,280
Sales returns reserves and other customer liabilities	6,813	9,449
Customer credit balances and deposits	4,870	4,638
Accrued employee benefits and withholdings	4,448	4,649
Accrued consulting and outside services	2,428	3,002
Accrued outsourcing costs	2,302	2,266
Accrued EDI expense	1,996	2,020
Accrued self insurance expense	1,954	1,737
Accrued taxes payable	696	586
Contingent consideration related to acquisitions	533	533
Accrued royalties	484	3,125
Other accrued expenses	3,520	2,954
Other current liabilities	54,284	52,699
Deferred payroll taxes	3,817	3,817
Uncertain tax positions	3,175	3,175
Other liabilities	156	144
Other noncurrent liabilities	$ 7,148	$ 7,136