Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions	4 Months Ended	6 Months Ended
	Jun. 27, 2020	Jun. 27, 2020	Mar. 02, 2020	Dec. 28, 2019
Business Acquisition [Line Items]
Goodwill	$ 1,244.9	$ 1,244.9		$ 1,047.5
Measurement Period Adjustments, Goodwill		(41.1)
Legacy Primo Acquisition
Business Acquisition [Line Items]
Cash and cash equivalents	1.3	1.3	$ 1.3
Accounts receivable	21.9	21.9	21.9
Inventory	12.7	12.7	12.7
Prepaid expenses and other current assets	5.2	5.2	4.3
Measurement Period Adjustments, Prepaid expenses and other current assets	0.9
Property, plant and equipment	126.1	126.1	119.0
Measurement Period Adjustments, Property, plant and equipment	7.1
Operating lease right-of-use-assets	4.0	4.0	4.9
Measurement Period Adjustments, Operating lease right-of-use assets	(0.9)
Goodwill	295.0	295.0	337.4
Measurement Period Adjustments, Goodwill	(42.4)
Intangible assets	412.7	412.7	361.3
Measurement Period Adjustments, Intangible assets	51.4
Other assets	0.5	0.5	3.9
Measurement Period Adjustments, Other assets	(3.4)
Current maturities of long-term debt	(2.2)	(2.2)	(2.2)
Accounts payable and accrued liabilities	(41.6)	(41.6)	(41.6)
Current operating lease obligations	(1.8)	(1.8)	(1.8)
Long-term debt	(5.3)	(5.3)	(5.8)
Measurement Period Adjustments, Long-term debt	0.5
Operating lease obligations	(2.2)	(2.2)	(3.1)
Measurement Period Adjustments, Operating lease obligations	0.9
Deferred tax liabilities	(26.2)	(26.2)	(11.7)
Measurement Period Adjustments, Deferred tax liabilities	(14.5)
Other long-term liabilities	(1.9)	(1.9)	(2.3)
Measurement Period Adjustments, Other long-term liabilities	0.4
Total	798.2	$ 798.2	$ 798.2
Measurement Period Adjustments, Total	$ 0.0