Pension Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 01, 2016	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015	May. 31, 2015
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost		$ 9,600		$ 28,700
Interest cost		6,100		18,300
Reduction of service cost		(200)		(600)
Reduction of interest cost		(1,400)		(4,200)
Increase in income from continuing operations		1,600		4,800
Increase in net income		$ 1,100		$ 3,300
Increase in basic and diluted earnings per share		$ 0.01		$ 0.02
Pension Benefits, U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected reduction to net periodic benefit expense				$ (5,400)
Service cost		$ 8,202	$ 7,604	24,606	$ 22,732
Interest cost		4,499	5,046	13,497	15,050
Contribution to retirement plans in current fiscal year						$ 32,000
Pension Benefits, U.S. Plans | Subsequent Event
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to retirement plans in current fiscal year	$ 35,800
Contribution to retirement plans	$ 3,800
Pension Benefits, Non-U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected reduction to net periodic benefit expense				(1,000)
Service cost		1,067	1,231	3,201	3,693
Interest cost		$ 1,319	$ 1,891	$ 3,965	$ 5,673
Contribution to retirement plans in current fiscal year						$ 5,700