Composition of Certain Financial Statement Captions - Summary of Other Current and Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Other Liabilities [Abstract]
Sales returns reserves and other customer liabilities	$ 9,449	$ 6,395
Accrued legal expense	6,302	2,119
Accrued hosting costs	6,158	4,652
Care services liabilities	5,280	2,307
Accrued employee benefits and withholdings	4,649	3,002
Customer credit balances and deposits	4,638	4,260
Accrued royalties	3,125	3,113
Accrued consulting and outside services	3,002	2,520
Accrued outsourcing costs	2,266	2,378
Accrued EDI expense	2,020	3,511
Accrued self insurance expense	1,737	2,054
Accrued taxes payable	586	1,222
Contingent consideration related to acquisitions	533
Other accrued expenses	2,954	3,819
Other current liabilities	52,699	41,352
Deferred payroll taxes	3,817
Uncertain tax positions	3,175	1,203
Contingent consideration related to acquisitions		1,900
Other liabilities	144	178
Other noncurrent liabilities	$ 7,136	$ 3,281