Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
CASH FLOWS PROVIDED BY OPERATING ACTIVITIES:
Net income	$ 61,252	$ 72,636
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	44,706	37,300
Stock award compensation	17,555	13,387
Deferred income taxes	7,460	7,554
Other	221	561
Net change in assets and liabilities, net of effects from currency fluctuations and acquisitions:
Accounts receivable	(14,201)	(23,489)
Prepaid expenses and other current assets	1,940	14,572
Other assets	(3,451)	(1,514)
Accounts payable and accrued expenses	783	(11,882)
Deferred revenue	(53,184)	(77,463)
Income taxes	10,604	4,123
Net cash provided by operating activities	73,685	35,785
CASH FLOWS USED IN INVESTING ACTIVITIES:
Purchase of business, net of cash acquired	(249,337)	(18,165)
Purchase of property and equipment	(15,879)	(13,328)
Purchase of capitalized software	(18,346)	(12,877)
Other	(575)
Net cash used in investing activities	(284,137)	(44,370)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Proceeds from borrowings	180,200
Payments on borrowings	(70,200)
Net proceeds from exercise of stock awards including excess tax benefits	8,503	53,331
Employee contribution to stock purchase plans	2,101	1,892
Repurchase of common stock	(4,259)	(116,600)
Net cash provided by (used in) financing activities	116,345	(61,377)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(3,936)	1,928
NET DECREASE IN CASH AND CASH EQUIVALENTS	(98,043)	(68,034)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	180,244	149,897
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 82,201	$ 81,863