Segment Reporting - Segment Reporting Information by Operating Segment (Detail) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	Jan. 03, 2015	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Segment Reporting Information [Line Items]
Revenue, net		$ 887.4	$ 885.1	$ 765.0	$ 698.4	$ 698.8	$ 755.6	$ 779.8	$ 709.8	$ 3,235.9	$ 2,944.0	$ 2,102.8
Depreciation and amortization										238.7	223.8	110.7
Operating (loss) income	$ 1.1	(3.7)	$ 34.6	$ 36.6	$ 14.7	18.0	$ 28.6	$ 46.1	$ 6.7	82.2	99.4	15.7
Property, plant & equipment, net		929.9				769.8				929.9	769.8
Goodwill	743.6	1,175.4				759.6				1,175.4	759.6	743.6
Intangible assets, net		939.7				684.1				939.7	684.1
Total assets		3,939.7				2,887.3				3,939.7	2,887.3
Additions to property, plant & equipment										139.8	110.8	46.7
Cott North America [Member]
Segment Reporting Information [Line Items]
Goodwill		120.5								120.5
Water & Coffee Solutions [Member]
Segment Reporting Information [Line Items]
Operating (loss) income											0.1
Goodwill	556.9	1,003.6				579.1				1,003.6	579.1	556.9
All Other [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 4.5	4.5				4.5				4.5	4.5	4.5
Operating Segments [Member] | Cott North America [Member]
Segment Reporting Information [Line Items]
Revenue, net										1,287.6	1,330.9	1,433.5
Depreciation and amortization										73.3	79.6	82.1
Operating (loss) income										33.9	38.5	29.7
Property, plant & equipment, net		273.4				293.4				273.4	293.4
Goodwill		120.5				120.0				120.5	120.0
Intangible assets, net		190.9				211.8				190.9	211.8
Total assets		862.9				943.1				862.9	943.1
Additions to property, plant & equipment										30.6	30.9	29.2
Operating Segments [Member] | Cott United Kingdom [Member]
Segment Reporting Information [Line Items]
Revenue, net										469.8	557.0	597.9
Depreciation and amortization										20.6	22.7	21.7
Operating (loss) income										27.8	28.0	26.3
Property, plant & equipment, net		80.1				97.6				80.1	97.6
Goodwill		46.8				56.0				46.8	56.0
Intangible assets, net		62.5				81.7				62.5	81.7
Total assets		316.5				402.5				316.5	402.5
Additions to property, plant & equipment										12.2	11.6	13.3
Operating Segments [Member] | Water & Coffee Solutions [Member]
Segment Reporting Information [Line Items]
Revenue, net										1,452.3	1,021.1	28.7
Depreciation and amortization										144.0	119.9	5.2
Operating (loss) income										46.5	39.0	(1.7)
Property, plant & equipment, net		571.2				372.6				571.2	372.6
Goodwill		1,003.6				579.1				1,003.6	579.1
Intangible assets, net		686.3				390.6				686.3	390.6
Total assets		2,735.1				1,513.1				2,735.1	1,513.1
Additions to property, plant & equipment										96.1	67.2	3.4
Operating Segments [Member] | All Other [Member]
Segment Reporting Information [Line Items]
Revenue, net										50.5	57.6	65.0
Depreciation and amortization										0.8	1.6	1.7
Operating (loss) income										8.5	10.5	10.0
Property, plant & equipment, net		5.2				6.2				5.2	6.2
Goodwill		4.5				4.5				4.5	4.5
Total assets		$ 25.2				$ 28.6				25.2	28.6
Additions to property, plant & equipment										0.9	1.1	0.8
Corporate [Member]
Segment Reporting Information [Line Items]
Operating (loss) income										(34.5)	(16.6)	(48.6)
Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net										(24.3)	(22.6)	(22.3)
Elimination [Member] | Cott North America [Member]
Segment Reporting Information [Line Items]
Revenue, net										$ 24.3	$ 22.6	$ 22.3