Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	May 31, 2017		May 31, 2016
Cash flows from operating activities:
Net income	$ 73,190		$ 61,184
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21,817		20,702
Amortization of debt discount and transaction costs	5,540		5,365
Share-based compensation expense	43,718		41,275
Deferred income taxes	7,917		(2,152)
Net amortization of bond premium on debt securities available for sale	2,436		3,540
Other	961		(765)
Changes in operating assets and liabilities:
Accounts receivable	208,761		190,330
Prepaid expenses	(7,708)		(9,373)
Accounts payable and accrued expenses	(55,338)		(30,186)
Deferred revenue	(45,717)		(46,093)
Other	2,295		(1,530)
Net cash provided by operating activities	257,872		232,297
Cash flows from investing activities:
Purchase of investment in debt securities available for sale	(149,524)		(134,601)
Proceeds from maturities of investment in debt securities available for sale	112,041		99,033
Proceeds from sales of investment in debt securities available for sale	14,324		18,149
Purchase of developed software and other intangible assets	(1,774)		(2,868)
Purchase of property and equipment	(25,900)		(17,653)
Other			(111)
Net cash used in investing activities	(50,833)		(38,051)
Cash flows from financing activities:
Proceeds from exercise of common stock options	2,968		1,380
Proceeds from employee stock purchase program	11,761
Payments related to net settlement of share-based compensation awards	(41,010)		(31,079)
Purchase of treasury stock	(61,987)		(66,478)
Payments on other borrowings	(443)		(445)
Other			500
Net cash used in financing activities	(88,711)		(96,122)
Effect of foreign currency exchange rates on cash and cash equivalents	21,321		5,663
Net increase in cash and cash equivalents	139,649		103,787
Cash and cash equivalents at beginning of the period	1,090,808	[1]	927,778
Cash and cash equivalents at end of the period	$ 1,230,457		$ 1,031,565

[1] Derived from audited financial statements.