Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 24, 2017	Nov. 25, 2016	Nov. 24, 2017	Nov. 25, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (24.2)		$ (24.2)
Net income	25.7	$ 41.2	80.7	$ 98.8
Unrealized gain (loss) on investments	0.0	(0.5)	0.3	(0.6)
Pension and other post-retirement liability adjustments	(2.0)	(0.7)	(0.5)	(3.2)
Foreign currency translation adjustments	6.3	(18.5)	26.6	(15.2)
Total other comprehensive income (loss), net	4.3	(19.7)	26.4	(19.0)
Comprehensive income	30.0	$ 21.5	107.1	$ 79.8
Unrealized gain (loss) on investments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax	0.0		0.0
Total other comprehensive income (loss), net	$ 0.0		$ 0.3