Acquisitions (Aimia Acquisition) - Additional Information (Detail) - Aimia Foods Holdings Limited [Member] £ in Millions, $ in Millions			1 Months Ended		6 Months Ended
	Sep. 15, 2014 USD ($)	Sep. 15, 2014 GBP (£)	May. 31, 2014 USD ($)	May. 31, 2014 GBP (£)	Jul. 04, 2015 USD ($)	Jul. 04, 2015 GBP (£)	Jul. 04, 2015 GBP (£)	Jun. 04, 2014 GBP (£)	May. 31, 2014 GBP (£)	May. 30, 2014 USD ($)
Business Acquisition [Line Items]
Acquisition Date					May 30, 2014	May 30, 2014
Acquired Segment			100.00%						100.00%
Contingent consideration			$ 25.0		$ 25.0		£ 16.0	£ 16.0	£ 16.0
Aggregate purchase price			87.6	£ 52.1
Deferred consideration	$ 33.5	£ 19.9	33.5
Fair Value of Contingent Consideration			$ 17.9		17.0		£ 10.9
Fair value adjustment related to business combination					0.6	£ 0.4
Income Approach Valuation Technique [Member]
Business Acquisition [Line Items]
Fair Value of Contingent Consideration					$ 17.0					$ 10.9