Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Deferred tax assets
Capital loss carryforwards	$ 44.8
Continued Operations
Deferred tax assets
Net operating loss carryforwards	134.2	$ 109.8
Capital loss carryforwards	12.0	13.1
Liabilities and reserves	28.2	25.0
Stock options	8.2	8.1
Inventories	4.0	3.8
Interest expense	11.3	12.2
Derivatives	0.0	(2.8)
Right of use lease obligations	49.1
Other	0.0	3.9
Deferred tax assets, gross	247.0	178.7
Deferred tax liabilities
Property, plant and equipment	(76.3)	(65.7)
Intangible assets	(125.1)	(139.2)
Right of use assets	(47.6)
Derivatives	(3.9)	0.0
Other	(1.2)	0.0
Deferred tax liabilities	(254.1)	(204.9)
Valuation allowance	(120.3)	(98.0)
Net deferred tax liability	$ (127.4)	$ (124.2)