Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions	15 Months Ended
	Jul. 03, 2021	Jan. 02, 2021	Mar. 28, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,279.9	$ 1,284.3
Legacy Primo Acquisition
Business Acquisition [Line Items]
Cash and cash equivalents	1.3		$ 1.3
Accounts receivable	21.6		21.6
Inventory	18.4		18.4
Prepaid expenses and other current assets	5.3		5.3
Property, plant and equipment	107.8		107.8
Operating lease right-of-use-assets	4.3		4.3
Goodwill	302.5		301.2
Measurement Period Adjustments, Goodwill	1.3
Intangible assets	421.6		421.6
Other assets	0.4		0.4
Current maturities of long-term debt	(2.3)		(2.3)
Accounts payable and accrued liabilities	(42.2)		(42.0)
Measurement Period Adjustments, Accounts payable and accrued liabilities	(0.2)
Current operating lease obligations	(1.4)		(1.4)
Long-term debt	(5.6)		(5.6)
Operating lease obligations	(3.0)		(3.0)
Deferred tax liabilities	(28.7)		(27.6)
Measurement Period Adjustments, Deferred tax liabilities	(1.1)
Other long-term liabilities	(1.8)		(1.8)
Total	798.2		$ 798.2
Measurement Period Adjustments, Total	$ 0.0