Composition of Certain Financial Statement Captions (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014
Summary of Accounts Receivable
Accounts receivable, gross	$ 122,741	$ 127,006
Sales return reserve	(10,951)	(10,530)
Allowance for doubtful accounts	(5,138)	(6,295)
Accounts receivable, net	106,652	110,181
Summary of Inventories
Computer systems and components	745	834
Summary of Equipment and improvements
Computer equipment	40,848	37,322
Furniture and fixtures	9,792	9,395
Leasehold improvements	9,682	8,874
Equipment and improvements, gross	60,322	55,591
Accumulated depreciation	(37,129)	(32,790)
Equipment and improvements, net	23,193	22,801
Summary of Current and non-current deferred revenue
Maintenance	14,084	15,482
Implementation services	34,227	36,634
Annual license services	10,446	11,176
Undelivered software, subscriptions and other	10,870	7,785
Deferred revenue	69,627	71,077
Deferred revenue, net of current	1,813	2,187
Summary of Accrued compensation and related benefits
Payroll, bonus and commission	5,745	6,193
Vacation	10,204	9,760
Accrued compensation and related benefits	15,949	15,953
Summary of Other current liabilities
Contingent consideration and other liabilities related to acquisitions	8,548	1,052
Customer deposits	4,341	76
Accrued consulting	2,772	1,707
Care services liabilities	2,692	4,351
Users group meeting deposits	2,343	0
Accrued EDI expense	2,068	1,702
Self insurance reserve	2,008	2,090
Accrued royalties	1,357	1,418
Deferred rent	1,160	964
Professional services	619	170
Accrued travel	212	369
Other accrued expenses	3,293	4,383
Other current liabilities	31,413	18,282
Contingent consideration and other liabilities related to acquisitions	7,215	14,736
Deferred rent	2,975	3,509
Income tax payable	760	841
Other noncurrent liabilities	$ 10,950	$ 19,086