Schedule of Derivatives Designated as Hedging Instruments (Detail) - Designated as Hedging Instrument - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	$ 188.5	$ 262.2
Fair Value	(3.4)	(2.8)
Amount of Gain (Loss) Recognized In AOCI	(3.4)	(2.8)
Amount of Gain (Loss) Recognized In Income	(3.6)	6.4
Amount of Gain (Loss) Reclassified from AOCI	(3.6)	6.4
Total revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized In Income	5.8	0.9
Amount of Gain (Loss) Reclassified from AOCI	5.8	0.9
Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized In Income	(9.4)	5.5
Amount of Gain (Loss) Reclassified from AOCI	(9.4)	5.5
Derivatives For Forecasted Revenues
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized In AOCI		2.7
Derivatives For Forecasted Revenues | Other Current Assets
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	30.8	43.3
Fair Value	0.7	2.7
Derivatives For Forecasted Revenues | Other Current Liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	7.6
Fair Value	(0.1)
Derivatives For Forecasted Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized In AOCI		(5.5)
Derivatives For Forecasted Expenses | Other Current Assets
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	29.1	13.7
Fair Value	0.3
Derivatives For Forecasted Expenses | Other Current Liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	121.0	205.2
Fair Value	$ (4.3)	$ (5.5)