Summary of Significant Accounting Policies - Additional Information (Details)		1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 28, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 27, 2020 segment	Jan. 01, 2022 USD ($) segment_component segment	Jan. 02, 2021 USD ($)	Dec. 28, 2019 USD ($)
Significant Accounting Policies [Line Items]
Additional revenue, impact of additional week in fiscal year				$ 19,400,000
Additional operating income, impact of additional week in fiscal year				3,900,000
Accounts payable and accrued liabilities				437,700,000	$ 387,700,000
Other long-term liabilities				64,900,000	67,800,000
Goodwill and intangible asset impairment charges				0	115,200,000	$ 0
Cost of sales				915,900,000	839,600,000	734,200,000
Advertising costs				$ 21,700,000	21,200,000	22,500,000
Share-based compensation award vesting period				3 years
Number of operating segments | segment				2
Number of reporting segments | segment			2
Goodwill				$ 1,321,400,000	1,284,300,000	1,047,500,000
Goodwill impairment				0	104,100,000
Intangible assets subject to amortization, net of accumulated amortization				509,900,000	532,100,000
Finite-lived intangible asset impairment				0	0	0
Acquired rights				459,900,000	455,500,000
Loss on disposal of property, plant and equipment, net				9,300,000	10,600,000	7,600,000
Insurance reserves				20,700,000	15,500,000
Accounts Payable and Accrued Liabilities, and Other Long-term Liabilities
Significant Accounting Policies [Line Items]
Insurance reserves				60,100,000	52,200,000
Accounts Receivable, Net and Other Long-Term Assets
Significant Accounting Policies [Line Items]
Insurance reserves, covered by insurance				17,200,000	10,800,000
Trademarks
Significant Accounting Policies [Line Items]
Acquired rights				459,200,000	455,500,000
Customer relationships
Significant Accounting Policies [Line Items]
Intangible assets subject to amortization, net of accumulated amortization				462,700,000	485,200,000
Software
Significant Accounting Policies [Line Items]
Intangible assets subject to amortization, net of accumulated amortization				23,700,000	24,300,000
Patents
Significant Accounting Policies [Line Items]
Intangible assets subject to amortization, net of accumulated amortization				10,500,000	12,800,000
DSSAqua Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill				978,100,000
Mountain Valley Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill				16,000,000
Eden Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill				271,600,000
Aimia Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill				53,300,000
Fonthill Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill				1,100,000
Decantae Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill				$ 1,300,000
North America
Significant Accounting Policies [Line Items]
Number of segment components | segment_component				3
Rest of World
Significant Accounting Policies [Line Items]
Number of segment components | segment_component				5
Shipping and Handling | Selling, General and Administrative Expenses | North America and Rest of World Segments
Significant Accounting Policies [Line Items]
Cost of sales				$ 477,200,000	441,400,000	$ 479,300,000
2020 Restructuring Plan
Significant Accounting Policies [Line Items]
Restructuring charges					10,500,000
2020 Restructuring Plan | North America
Significant Accounting Policies [Line Items]
Restructuring charges					2,700,000
2020 Restructuring Plan | Rest of World
Significant Accounting Policies [Line Items]
Restructuring charges					7,800,000
COVID-19 Pandemic
Significant Accounting Policies [Line Items]
Wage subsidies received				3,700,000	7,400,000
Accounts payable and accrued liabilities				7,500,000	9,000,000
Other long-term liabilities					7,500,000
Goodwill and intangible asset impairment charges					115,200,000
COVID-19 Pandemic | Eden Reporting Unit | Trademarks
Significant Accounting Policies [Line Items]
Indefinite-lived intangible asset impairment				9,900,000
COVID-19 Pandemic | Aquaterra Reporting Unit | Trademarks
Significant Accounting Policies [Line Items]
Indefinite-lived intangible asset impairment				$ 1,200,000
COVID-19 Pandemic | Rest of World | Eden Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill impairment					103,300,000
COVID-19 Pandemic | Rest of World | Decantae Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill impairment					300,000
COVID-19 Pandemic | Rest of World | Farrers Reporting Unit
Significant Accounting Policies [Line Items]
Goodwill impairment					$ 500,000
Discontinued Operations, Disposed of by Sale | S&D Disposition
Significant Accounting Policies [Line Items]
Purchase price received, cash	$ 405,000,000
Payments, post-closing working capital adjustments		$ 1,500,000