Segment Reporting - Segment Reporting Information by Operating Segment (Detail) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	Jan. 03, 2015	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Segment Reporting Information [Line Items]
Revenue, net		$ 698.8	$ 755.6	$ 779.8	$ 709.8	$ 543.5	$ 535.0	$ 549.2	$ 475.1	$ 2,944.0	$ 2,102.8	$ 2,094.0
Depreciation and amortization										223.8	110.7	100.6
Operating income (loss)	$ 1.1	18.0	$ 28.6	$ 46.1	$ 6.7	(33.6)	$ 18.8	$ 26.2	$ 4.3	99.4	15.7	88.2
Property, plant & equipment, net	864.5	769.8				864.5				769.8	864.5	480.5
Goodwill	743.6	759.6				743.6				759.6	743.6	139.2
Intangibles and other assets, net	758.0	711.7				758.0				711.7	758.0	290.6
Total assets	3,073.2	2,887.3				3,073.2				2,887.3	3,073.2	1,410.7
Additions to property, plant & equipment										110.8	46.7	55.3
Cott North America [Member]
Segment Reporting Information [Line Items]
Goodwill		120.0								120.0
DSS Group Inc [Member]
Segment Reporting Information [Line Items]
Goodwill	556.9	579.1				556.9				579.1	556.9
All Other [Member]
Segment Reporting Information [Line Items]
Property, plant & equipment, net	7.3	6.2				7.3				6.2	7.3
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										1,330.9	1,433.5	1,556.2
Depreciation and amortization										79.6	82.1	84.2
Operating income (loss)										38.5	29.7	67.1
Property, plant & equipment, net	331.9	293.4				331.9				293.4	331.9	360.1
Goodwill	123.7	120.0				123.7				120.0	123.7	125.9
Intangibles and other assets, net	243.1	222.4				243.1				222.4	243.1	262.6
Total assets	1,048.4	943.1				1,048.4				943.1	1,048.4	1,075.2
Additions to property, plant & equipment										30.9	29.2	41.6
Operating Segments [Member] | Cott United Kingdom [Member]
Segment Reporting Information [Line Items]
Revenue, net										557.0	597.9	494.3
Depreciation and amortization										22.7	21.7	14.2
Operating income (loss)										28.0	26.3	25.6
Property, plant & equipment, net	109.9	97.6				109.9				97.6	109.9	111.0
Goodwill	58.5	56.0				58.5				56.0	58.5	8.8
Intangibles and other assets, net	99.2	86.8				99.2				86.8	99.2	27.7
Total assets	426.8	402.5				426.8				402.5	426.8	296.3
Additions to property, plant & equipment										11.6	13.3	12.4
Operating Segments [Member] | DSS Group Inc [Member]
Segment Reporting Information [Line Items]
Revenue, net										1,021.1	28.7
Depreciation and amortization										119.9	5.2
Operating income (loss)										39.0	(1.7)
Property, plant & equipment, net	415.4	372.6				415.4				372.6	415.4
Goodwill	556.9	579.1				556.9				579.1	556.9
Intangibles and other assets, net	415.5	402.5				415.5				402.5	415.5
Total assets	1,567.6	1,513.1				1,567.6				1,513.1	1,567.6
Additions to property, plant & equipment										67.2	3.4
Operating Segments [Member] | All Other [Member]
Segment Reporting Information [Line Items]
Revenue, net										57.6	65.0	64.5
Depreciation and amortization										1.6	1.7	2.2
Operating income (loss)										10.5	10.0	7.2
Property, plant & equipment, net	7.3	6.2				7.3				6.2	7.3	9.4
Goodwill	4.5	4.5				4.5				4.5	4.5	4.5
Intangibles and other assets, net	0.2					0.2					0.2	0.3
Total assets	$ 30.4	$ 28.6				$ 30.4				28.6	30.4	39.2
Additions to property, plant & equipment										1.1	0.8	1.3
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income (loss)										(16.6)	(48.6)	(11.7)
Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, net										(22.6)	(22.3)	(21.0)
Elimination [Member] | Cott North America [Member]
Segment Reporting Information [Line Items]
Revenue, net										$ 22.6	$ 22.3	$ 21.0