Schedule of Derivatives Designated as Hedging Instruments (Detail) - Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	$ 125.1		$ 188.5
Fair Value	(1.5)		(3.4)
Amount of Gain (Loss) Recognized In AOCI	(1.5)		(3.4)
Amount of Gain (Loss) Recognized In Income	(2.4)	$ 0.1
Amount of Gain (Loss) Reclassified from AOCI	(2.4)	0.1
Total revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized In Income		2.2
Amount of Gain (Loss) Reclassified from AOCI		2.2
Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized In Income	(2.4)	(2.1)
Amount of Gain (Loss) Reclassified from AOCI	(2.4)	$ (2.1)
Derivatives For Forecasted Revenues | Other Current Assets
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	21.4		30.8
Fair Value			0.7
Amount of Gain (Loss) Recognized In AOCI			0.7
Derivatives For Forecasted Revenues | Other Current Liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	3.8		7.6
Fair Value	(0.2)		(0.1)
Amount of Gain (Loss) Recognized In AOCI	(0.2)		(0.1)
Derivatives For Forecasted Expenses | Other Current Assets
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	10.0		29.1
Fair Value	0.1		0.3
Amount of Gain (Loss) Recognized In AOCI	0.1		0.3
Derivatives For Forecasted Expenses | Other Current Liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	89.9		121.0
Fair Value	(1.4)		(4.3)
Amount of Gain (Loss) Recognized In AOCI	$ (1.4)		$ (4.3)