Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS PROVIDED BY OPERATING ACTIVITIES:
Net income	$ 39,664	$ 38,637
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	28,770	24,505
Stock award compensation	11,983	9,195
Deferred income taxes	3,024	(627)
Other	125	416
Net change in assets and liabilities, net of effects from currency fluctuations and acquisitions:
Accounts receivable	41,669	49,767
Prepaid expenses and other current assets	5,913	16,822
Other assets	(7,232)	745
Accounts payable and accrued expenses	(10,048)	(28,040)
Deferred revenue	(95,571)	(104,230)
Income taxes	13,461	6,171
Net cash provided by operating activities	31,758	13,361
CASH FLOWS USED IN INVESTING ACTIVITIES:
Purchase of business, net of cash acquired	(249,337)	(15,715)
Purchase of property and equipment	(12,189)	(7,528)
Purchase of capitalized software	(13,137)	(9,826)
Other	(500)
Net cash used in investing activities	(275,163)	(33,069)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Proceeds from borrowings	161,200
Payments on borrowings	(35,600)
Net proceeds from exercise of stock options including excess tax benefits	6,498	3,241
Employee contribution to stock purchase plans	1,403	1,232
Repurchase of common stock	(3,308)	(59,015)
Net cash provided by (used in) financing activities	130,193	(54,542)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(3,166)	1,621
NET DECREASE IN CASH AND CASH EQUIVALENTS	(116,378)	(72,629)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	180,244	149,897
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 63,866	$ 77,268