Composition of Certain Financial Statement Captions - Summary of Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Other Liabilities [Abstract]
Sales returns reserves and other customer liabilities	$ 8,705	$ 6,395
Care services liabilities	5,405	2,307
Customer credit balances and deposits	4,159	4,260
Accrued employee benefits and withholdings	3,078	3,002
Accrued hosting costs	2,966	4,652
Accrued consulting and outside services	2,340	2,520
Accrued self insurance expense	2,153	2,054
Accrued outsourcing costs	2,036	2,378
Accrued EDI expense	1,909	3,511
Accrued legal expense	1,604	2,119
Accrued taxes payable	751	1,222
Accrued royalties	435	3,113
Other accrued expenses	3,346	3,819
Other current liabilities	38,887	41,352
Deferred payroll taxes	5,535
Contingent consideration related to acquisitions	1,950	1,900
Uncertain tax positions	1,203	1,203
Other liabilities	211	178
Other noncurrent liabilities	$ 8,899	$ 3,281