Discontinued Operations - Major Components of Net Income (Loss) from Discontinued Operations, Net of Income Taxes in Consolidated Statements of Operations (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) from discontinued operations, net of income taxes	$ 357.4	$ (24.2)
Net income (loss) attributable to Cott Corporation - discontinued operations	356.8	(26.2)
Discontinued Operations, Disposed of by Sale [Member] | Traditional CSD and Juice Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue, net	111.2	371.8
Cost of sales	98.4	330.0
Operating income from discontinued operations	2.0	5.6
Gain on sale of discontinued operations	429.4
Net income (loss) from discontinued operations, before income taxes	404.0	(24.8)
Income tax expense (benefit)	46.6	(0.6)
Net income (loss) from discontinued operations, net of income taxes	357.4	(24.2)
Less: Net income attributable to non-controlling interests	0.6	2.0
Net income (loss) attributable to Cott Corporation - discontinued operations	$ 356.8	$ (26.2)