Segment Reporting - Summary of Revenue, Income (Loss) from Operations, Total Assets and Total Cash, Cash Equivalents and Available-for-Sale Investment Securities by Geographic Segments (Detail) - USD ($) $ in Thousands		3 Months Ended
		May 31, 2019	May 31, 2018	Feb. 28, 2019
Segment Reporting Information [Line Items]
Total revenue from unaffiliated customers		$ 934,111	$ 813,530
Income (loss) from operations		132,118	112,156
Total cash, cash equivalents, restricted cash and available-for-sale investment securities		2,661,193	2,527,129
Total assets		5,573,939	5,191,561	$ 5,588,289
Corporate
Segment Reporting Information [Line Items]
Total revenue from unaffiliated customers	[1]	0	0
Income (loss) from operations	[1]	(50,168)	(46,005)
Total cash, cash equivalents, restricted cash and available-for-sale investment securities	[1]	0	0
Total assets	[1]	0	0
Americas | Operating Segment
Segment Reporting Information [Line Items]
Total revenue from unaffiliated customers		582,290	500,306
Income (loss) from operations		83,555	71,864
Total cash, cash equivalents, restricted cash and available-for-sale investment securities		1,429,795	1,524,311
Total assets		3,567,096	3,559,900
EMEA | Operating Segment
Segment Reporting Information [Line Items]
Total revenue from unaffiliated customers		216,951	195,148
Income (loss) from operations		54,909	48,860
Total cash, cash equivalents, restricted cash and available-for-sale investment securities		730,228	576,171
Total assets		1,258,782	1,015,187
Asia Pacific | Operating Segment
Segment Reporting Information [Line Items]
Total revenue from unaffiliated customers		134,870	118,076
Income (loss) from operations		43,822	37,437
Total cash, cash equivalents, restricted cash and available-for-sale investment securities		501,170	426,647
Total assets		$ 748,061	$ 616,474

[1] Amounts represent share-based compensation expense that was not allocated to geographic segments.