Segment Reporting - Segment Reporting Information by Operating Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015	Jan. 02, 2016
Segment Reporting Information [Line Items]
Revenue, net	$ 885.1	$ 755.6	$ 2,348.5	$ 2,245.2
Depreciation and amortization	63.2	58.1	169.2	173.7
Operating income (loss)	34.6	28.6	85.9	81.4
Additions to property, plant and equipment	38.7	28.3	101.4	85.5
Total assets	4,114.4		4,114.4		$ 2,887.3
Operating Segments [Member] | Cott North America [Member]
Segment Reporting Information [Line Items]
Revenue, net	326.2	338.5	988.7	1,026.2
Depreciation and amortization	18.4	19.4	55.3	61.3
Operating income (loss)	12.0	8.3	31.0	33.8
Additions to property, plant and equipment	8.0	8.4	24.0	20.1
Total assets	891.8		891.8		943.1
Operating Segments [Member] | Cott United Kingdom [Member]
Segment Reporting Information [Line Items]
Revenue, net	116.1	139.9	369.0	425.9
Depreciation and amortization	5.0	5.9	15.9	16.8
Operating income (loss)	5.3	7.0	26.9	25.5
Additions to property, plant and equipment	1.5	1.5	7.3	7.7
Total assets	340.1		340.1		402.5
Operating Segments [Member] | Water & Coffee Solutions [Member]
Segment Reporting Information [Line Items]
Revenue, net	436.5	268.1	969.5	765.4
Depreciation and amortization	39.6	32.3	97.3	94.3
Operating income (loss)	21.1	14.0	44.6	25.7
Additions to property, plant and equipment	28.9	18.0	69.4	56.8
Total assets	2,854.8		2,854.8		1,513.1
Operating Segments [Member] | All Other [Member]
Segment Reporting Information [Line Items]
Revenue, net	11.9	15.4	40.3	44.8
Depreciation and amortization	0.2	0.5	0.7	1.3
Operating income (loss)	1.9	3.1	7.8	8.4
Additions to property, plant and equipment	0.3	0.4	0.7	0.9
Total assets	27.7		27.7		$ 28.6
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(5.7)	(3.8)	(24.4)	(12.0)
Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	(5.6)	(6.3)	(19.0)	(17.1)
Elimination [Member] | Cott North America [Member]
Segment Reporting Information [Line Items]
Revenue, net	$ 5.6	$ 6.3	$ 19.0	$ 17.1