Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Mar. 31, 2012
Current assets:
Cash and cash equivalents	$ 101,702	$ 134,444
Restricted cash	5,155	1,962
Marketable securities	4,987	4,987
Accounts receivable, net	151,495	145,756
Inventories	3,912	3,715
Income taxes receivable	1,864	2,628
Deferred income taxes, net	10,127	10,127
Other current assets	7,276	9,090
Total current assets	286,518	312,709
Equipment and improvements, net	20,930	17,841
Capitalized software costs, net	32,881	19,994
Intangibles, net	29,415	23,259
Goodwill	63,161	60,776
Other assets	7,315	5,773
Total assets	440,220	440,352
Current liabilities:
Accounts payable	6,563	4,532
Deferred revenue	63,001	83,108
Accrued compensation and related benefits	8,595	11,870
Dividends payable	0	10,354
Other current liabilities	27,750	19,568
Total current liabilities	105,909	129,432
Deferred revenue, net of current	1,307	1,293
Deferred income taxes, net	4,096	5,351
Deferred compensation	3,454	3,497
Other noncurrent liabilities	4,368	5,602
Total liabilities	119,134	145,175
Commitments and contingencies (Note 12)
Shareholders' equity:
Common stock $0.01 par value; authorized 100,000 shares; issued and outstanding 59,370 and 59,180 shares at September 30, 2012 and March 31, 2012, respectively	595	592
Additional paid-in capital	179,306	169,033
Accumulated other comprehensive loss	(45)	(45)
Retained earnings	141,230	125,597
Total shareholders' equity	321,086	295,177
Total liabilities and shareholders' equity	$ 440,220	$ 440,352