Income Tax (Benefit) Expense - Income Tax (Benefit) Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Current
Canada	$ 4.0		$ (0.3)
Outside Canada	3.7	$ 2.5	(0.4)
Income tax (benefit) expense, current, Total	7.7	2.5	(0.7)
Deferred
Canada	(2.5)	0.3	(0.6)
Outside Canada	(27.9)	(64.2)	3.1
Income tax (benefit) expense, deferred, Total	(30.4)	(63.9)	2.5
Income tax (benefit) expense	$ (22.7)	$ (61.4)	$ 1.8