Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Mar. 31, 2012
Current assets:
Cash and cash equivalents	$ 117,043	$ 134,444
Restricted cash	5,223	1,962
Marketable securities	4,989	4,987
Accounts receivable, net	151,787	145,756
Inventories	3,858	3,715
Income taxes receivable	6,063	2,628
Deferred income taxes, net	10,127	10,127
Other current assets	6,712	9,090
Total current assets	305,802	312,709
Equipment and improvements, net	20,296	17,841
Capitalized software costs, net	29,232	19,994
Intangibles, net	31,299	23,259
Goodwill	63,161	60,776
Other assets	6,860	5,773
Total assets	456,650	440,352
Current liabilities:
Accounts payable	8,955	4,532
Deferred revenue	67,968	83,108
Accrued compensation and related benefits	9,894	11,870
Dividends payable	10,382	10,354
Other current liabilities	31,108	19,568
Total current liabilities	128,307	129,432
Deferred revenue, net of current	1,225	1,293
Deferred income taxes, net	4,500	5,351
Deferred compensation	3,208	3,497
Other noncurrent liabilities	7,103	5,602
Total liabilities	144,343	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	594	592
Additional paid-in capital	175,747	169,033
Accumulated other comprehensive loss	(55)	(45)
Retained earnings	136,021	125,597
Total shareholders' equity	312,307	295,177
Total liabilities and shareholders' equity	$ 456,650	$ 440,352