Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 31, 2014		May 31, 2013
Cash flows from operating activities:
Net income	$ 37,745		$ 40,391
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	18,924		17,932
Share-based compensation expense	28,714		23,131
Deferred income taxes	2,930		9,812
Net amortization of bond premium on debt securities available for sale	2,033		2,051
Other	(948)		143
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	96,580		72,422
Prepaid expenses	(5,189)		3,251
Accounts payable and accrued expenses	2,655		(12,609)
Deferred revenue	(19,749)		(16,900)
Other	991		2,191
Net cash provided by operating activities	164,686		141,815
Cash flows from investing activities:
Purchase of investment in debt securities available for sale	(268,574)		(129,643)
Proceeds from sales and maturities of investment in debt securities available for sale	269,431		325,850
Acquisition of business, net of cash acquired	(151,621)
Purchase of other intangible assets	(553)		(2,344)
Purchase of property and equipment	(8,594)		(26,677)
Other	3,472		192
Net cash provided by (used in) investing activities	(156,439)		167,378
Cash flows from financing activities:
Excess tax benefits from share-based payment arrangements	986		3,033
Proceeds from exercise of common stock options	45		453
Payments related to net settlement of share-based compensation awards	(13,729)		(10,983)
Purchase of treasury stock	(80,033)		(179,336)
Payments on other borrowings	(355)		(305)
Net cash used in financing activities	(93,086)		(187,138)
Effect of foreign currency exchange rates on cash and cash equivalents	2,245		(11,141)
Net increase (decrease) in cash and cash equivalents	(82,594)		110,914
Cash and cash equivalents at beginning of the period	646,742	[1]	487,084
Cash and cash equivalents at end of the period	$ 564,148		$ 597,998

[1] Derived from audited financial statements.