Composition of Certain Financial Statement Captions (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Mar. 31, 2013
Summary of Accounts Receivable
Accounts receivable, gross	$ 136,386	$ 160,080
Allowance for doubtful accounts	(10,088)	(11,823)
Accounts receivable, net	126,298	148,257
Summary of Inventories
Computer systems and components	928	710
Inventories	928	710
Summary of Equipment and improvements
Computer equipment	36,224	31,633
Furniture and fixtures	9,251	8,416
Leasehold improvements	9,975	7,125
Equipment and improvements, gross	55,450	47,174
Accumulated depreciation	(31,184)	(25,287)
Equipment and improvements, net	24,266	21,887
Summary of Current and non-current deferred revenue
Maintenance	16,337	12,085
Implementation services	33,476	36,899
Annual license services	10,051	9,906
Undelivered software, subscriptions and other	12,862	6,317
Deferred revenue	72,726	65,207
Deferred revenue, net of current	2,087	1,219
Summary of Accrued compensation and related benefits
Payroll, bonus and commission	4,805	3,842
Vacation	8,887	8,073
Accrued compensation and related benefits	13,692	11,915
Summary of Other current liabilities
Contingent consideration and other liabilities related to acquisitions	8,241	8,426
Care services liabilities	4,079	5,488
Accrued consulting services	2,766	2,602
Accrued EDI expense	2,506	1,452
Users Group Meeting (UGM) deposits	2,236	0
Self insurance reserve	1,589	1,336
Accrued royalties	1,285	1,331
Deferred rent	911	689
Sales tax payable	464	869
Accrued travel	271	384
Outside commission payable	267	461
Customer deposits	60	262
Other accrued expenses	3,072	3,208
Other current liabilities	27,747	26,508
Contingent consideration and other liabilities related to acquisitions	6,798	1,382
Deferred rent	3,705	2,448
Income tax payable	1,237	0
Other liabilities	0	119
Other noncurrent liabilities	$ 11,740	$ 3,949