Composition of Certain Financial Statement Captions (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013
Summary of Accounts Receivable
Accounts receivable, gross	$ 149,794	$ 160,080
Allowance for doubtful accounts	(10,845)	(11,823)
Accounts receivable, net	138,949	148,257
Summary of Inventories
Computer systems and components	983	710
Inventories	983	710
Summary of Equipment and improvements
Computer equipment	32,043	31,633
Furniture and fixtures	8,522	8,416
Leasehold improvements	8,444	7,125
Equipment and improvements, gross	49,009	47,174
Accumulated depreciation	(27,184)	(25,287)
Equipment and improvements, net	21,825	21,887
Summary of Current and non-current deferred revenue
Maintenance	11,135	12,085
Implementation services	36,955	36,899
Annual license services	10,366	9,906
Undelivered software and other	4,269	6,317
Deferred revenue	62,725	65,207
Deferred revenue, net of current	1,285	1,219
Summary of Accrued compensation and related benefits
Payroll, bonus and commission	3,510	3,842
Vacation	8,563	8,073
Accrued compensation and related benefits	12,073	11,915
Summary of Other current liabilities
Contingent consideration and other liabilities related to acquisitions	8,244	8,426
Care services liabilities	3,647	5,488
Users Group Meeting (UGM) deposits	3,205	1,452
Accrued EDI expense	2,383	2,602
Accrued consulting services	1,377	1,336
Sales tax payable	1,208	1,331
Accrued royalties	1,015	0
Self insurance reserve	743	869
Professional services	478	689
Deferred rent	375	461
Outside commission payable	361	384
Accrued travel	44	262
Other accrued expenses	3,397	3,208
Other current liabilities	26,477	26,508
Contingent consideration and other liabilities related to acquisitions	4,159	2,448
Deferred rent	520	1,382
Other liabilities	112	119
Other noncurrent liabilities	$ 4,791	$ 3,949