Segment Reporting - Revenues by Channel Reporting Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Segment Reporting Information [Line Items]
Revenue, net	$ 885.1	$ 755.6	$ 2,348.5	$ 2,245.2
Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	(5.6)	(6.3)	(19.0)	(17.1)
Cott North America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	326.2	338.5	988.7	1,026.2
Cott North America [Member] | Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	5.6	6.3	19.0	17.1
Cott United Kingdom [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	116.1	139.9	369.0	425.9
Private Label Retail [Member]
Segment Reporting Information [Line Items]
Revenue, net	338.3	353.0	1,012.2	1,077.0
Private Label Retail [Member] | Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	(0.4)	(0.4)	(1.1)	(1.6)
Private Label Retail [Member] | Cott North America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	263.9	270.4	793.3	827.8
Private Label Retail [Member] | Cott United Kingdom [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	52.2	65.1	158.2	197.4
Branded Retail [Member]
Segment Reporting Information [Line Items]
Revenue, net	80.0	95.1	258.2	283.2
Branded Retail [Member] | Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	(0.3)	(0.3)	(1.0)	(1.2)
Branded Retail [Member] | Cott North America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	25.4	30.0	77.0	87.9
Branded Retail [Member] | Cott United Kingdom [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	32.9	41.6	111.2	130.0
Contract Packaging Inc [Member]
Segment Reporting Information [Line Items]
Revenue, net	57.9	64.7	189.4	190.0
Contract Packaging Inc [Member] | Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	(1.9)	(2.4)	(6.5)	(4.0)
Contract Packaging Inc [Member] | Cott North America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	30.7	31.1	97.8	88.0
Contract Packaging Inc [Member] | Cott United Kingdom [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	25.2	30.3	84.5	89.6
Home and Office Bottled Water Delivery [Member]
Segment Reporting Information [Line Items]
Revenue, net	235.9	173.3	575.1	487.7
Coffee and Tea Services [Member]
Segment Reporting Information [Line Items]
Revenue, net	112.9	28.9	174.4	92.2
Coffee and Tea Services [Member] | Cott United Kingdom [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	2.0	0.8	2.0	2.4
Concentrate and Other [Member]
Segment Reporting Information [Line Items]
Revenue, net	60.1	40.6	139.2	115.1
Concentrate and Other [Member] | Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net	(3.0)	(3.2)	(10.4)	(10.3)
Concentrate and Other [Member] | Cott North America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	6.2	7.0	20.6	22.5
Concentrate and Other [Member] | Cott United Kingdom [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	3.8	2.1	13.1	6.5
Water & Coffee Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	436.5	268.1	969.5	765.4
Water & Coffee Solutions [Member] | Private Label Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	21.6	17.0	59.2	49.7
Water & Coffee Solutions [Member] | Branded Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	21.3	22.9	68.5	63.2
Water & Coffee Solutions [Member] | Home and Office Bottled Water Delivery [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	235.9	173.3	575.1	487.7
Water & Coffee Solutions [Member] | Coffee and Tea Services [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	110.9	28.1	172.4	89.8
Water & Coffee Solutions [Member] | Concentrate and Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	46.8	26.8	94.3	75.0
All Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	11.9	15.4	40.3	44.8
All Other [Member] | Private Label Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	1.0	0.9	2.6	3.7
All Other [Member] | Branded Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	0.7	0.9	2.5	3.3
All Other [Member] | Contract Packaging Inc [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	3.9	5.7	13.6	16.4
All Other [Member] | Concentrate and Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue, net	$ 6.3	$ 7.9	$ 21.6	$ 21.4