Composition of Certain Financial Statement Captions (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
Summary of Accounts Receivable
Accounts receivable, gross	$ 91,257	$ 104,467
Sales return reserve	(9,530)	(7,541)
Allowance for doubtful accounts	(3,321)	(2,902)
Accounts receivable, net	78,406	94,024
Summary of Prepaid Expense and Other Assets, Current
Prepaid Expense, Current	13,558	11,804
Other Assets, Current	4,961	3,106
Prepaid Expense and Other Assets, Current	18,519	14,910
Summary of Equipment and improvements
Computer equipment	26,059	32,213
Internal-use software	10,616	10,201
Furniture and fixtures	10,904	9,799
Leasehold improvements	14,820	13,408
Equipment and improvements, gross	62,399	65,621
Accumulated depreciation	(36,414)	(39,831)
Equipment and improvements, net	25,985	25,790
Summary of Current and non-current deferred revenue
Professional services	22,793	23,128
Undelivered software, hardware and other	10,962	14,913
Support and Maintenance	10,100	11,902
Software related subscription services	8,440	7,992
Deferred revenue	52,295	57,935
Deferred revenue, net of current	1,403	1,335
Summary of Accrued compensation and related benefits
Vacation	8,121	8,987
Payroll, bonus and commission	7,071	9,683
Accrued compensation and related benefits	15,192	18,670
Summary of Other current liabilities
Contingent consideration and other liabilities related to acquisitions	20,400	24,153
Customer Deposits, Current	4,852	4,123
Care Services Liabilities Current	4,458	5,339
Deposit Liability, Current	3,049	0
Self Insurance Reserve, Current	2,508	1,862
Accrued consulting services, Current	2,391	3,650
Electronic Data Interchange Expense Current	2,167	2,382
Deferred Rent Credit, Current	1,441	828
Accrued Outsourcing Expenses	1,439	1,604
Accrued Royalties, Current	1,233	2,341
Accrued Professional Fees	1,017	864
Other Accrued Liabilities, Current	5,779	3,092
Other Liabilities, Current	50,734	50,238
Deferred Rent Credit, Noncurrent	9,292	6,577
Accrued Income Taxes, Noncurrent	4,084	4,084
Other Liabilities, Noncurrent	$ 13,376	$ 10,661