Consolidated Balance Sheets - USD ($) $ in Thousands		May 31, 2019	Feb. 28, 2019
Current assets:
Cash, cash equivalents and restricted cash		$ 2,295,396	$ 1,883,096
Investments in debt securities, short-term		177,625	293,361
Accounts receivable, net of allowances for doubtful accounts of $4,452 and $4,561, respectively		529,115	980,188
Prepaid expenses		250,571	282,507
Other current assets		36,743	24,504
Total current assets		3,289,450	3,463,656
Property and equipment, net of accumulated depreciation and amortization of $331,642 and $316,432, respectively		200,015	198,969
Operating right-of-use assets, net	[1]	224,371	0
Goodwill		1,273,494	1,276,853
Identifiable intangibles, net		198,914	206,083
Investments in debt securities, long-term		188,172	248,512
Deferred tax assets, net		119,128	112,568
Other assets, net		80,395	81,648
Total assets		5,573,939	5,588,289
Current liabilities:
Accounts payable and accrued expenses		458,456	491,259
Deferred revenue, short-term		2,016,488	2,161,206
Other current obligations		256	282
Convertible notes		188,553	69,827
Total current liabilities		2,663,753	2,722,574
Deferred revenue, long-term		781,043	821,218
Convertible notes		0	231,540
Operating lease liabilities	[1]	188,133	0
Other long-term obligations		183,074	199,025
Commitments and contingencies (NOTES 10 and 11)
Stockholders’ equity:
Preferred stock, $0.0001 per share par value, 5,000,000 shares authorized, none outstanding		0	0
Common stock, $0.0001 per share par value, 300,000,000 shares authorized, 246,289,980 and 244,402,737 shares issued, and 178,083,153 and 176,800,502 shares outstanding, respectively		25	24
Additional paid-in capital		2,853,105	2,791,895
Retained earnings		2,195,189	2,054,069
Treasury stock, at cost, 68,206,827 and 67,602,235 shares, respectively		(3,242,725)	(3,189,434)
Accumulated other comprehensive loss		(47,658)	(42,622)
Total stockholders’ equity		1,757,936	1,613,932
Total liabilities and stockholders’ equity		$ 5,573,939	$ 5,588,289

[1] Effective March 1, 2019, the Company adopted Accounting Standard Update 2016-02, Leases (Topic 842) (“ASC 842”). See NOTE 2—Summary of Significant Accounting Policies and NOTE 4—Leases for detailed information on adoption of ASC 842.