Composition of Certain Financial Statement Captions - Summary of Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Other Liabilities [Abstract]
Care services liabilities	$ 8,032	$ 2,307
Sales returns reserves and other customer liabilities	7,633	6,395
Accrued hosting costs	5,834	4,652
Customer credit balances and deposits	4,243	4,260
Accrued employee benefits and withholdings	3,058	3,002
Accrued self insurance expense	2,324	2,054
Accrued outsourcing costs	2,233	2,378
Accrued consulting and outside services	2,141	2,520
Accrued EDI expense	1,981	3,511
Accrued legal expense	1,300	2,119
Sales tax payable	560	1,222
Accrued royalties	527	3,113
Other accrued expenses	3,750	3,819
Other current liabilities	43,616	41,352
Deferred payroll taxes	3,263
Contingent consideration related to acquisitions	1,925	1,900
Uncertain tax positions	1,203	1,203
Other liabilities	179	178
Other noncurrent liabilities	$ 6,570	$ 3,281