CONTINGENCIES - Additional Information (Detail) ft³ in Millions, $ in Millions										1 Months Ended		12 Months Ended
	Apr. 14, 2021 USD ($)	Dec. 04, 2020 USD ($)	Oct. 10, 2018 mi	Jun. 30, 2018 USD ($) Company	May 17, 2017 Hazardous_Substance	Mar. 31, 2017 Company	Mar. 31, 2016 USD ($) age mi	Mar. 04, 2016 mi ft³	Apr. 11, 2014 mi	Apr. 30, 2015 mi	May 31, 2007 Company mi	Jan. 01, 2022 USD ($) site	Jan. 02, 2021 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Superfund sites | site												28
Environmental remediation costs, reserve												$ 46.1	$ 46.7
Environmental remediation costs deemed probable and reasonable estimable	$ 441.0						$ 1,400.0
Reserve for environmental loss contingencies, EPA funded amount												$ 16.1
Environmental remediation. period construction of treatment facility to be maintained												30 years
Number of miles of river | mi			9				8.3	8.3	8.3	17	17
Cubic yards of settlement | ft³								3.5
Approximate implementation time							6 years
Number of parties notified | age							105
Number of companies offered cash out settlements | Company						20
Number of hazardous substances | Hazardous_Substance					8
Number of defendants | Company				100
Estimated costs of remediation design				$ 165.0
Undiscounted environmental liability expected to be paid in 2022												$ 2.7
Undiscounted environmental liability expected to be paid 2023												3.1
Undiscounted environmental liability expected to be paid in 2024												3.1
Undiscounted environmental liability expected to be paid in 2025												2.8
Undiscounted environmental liability expected to be paid in 2026												2.9
Undiscounted environmental liability expected to be paid thereafter												30.1
Lower Passaic Cooperating Parties Group
Commitments and Contingencies Disclosure [Line Items]
Number of companies | Company											47
Property, Plant and Equipment, Other Types
Commitments and Contingencies Disclosure [Line Items]
Environmental remediation costs, reserve												159.1	$ 174.2
Reserve for environmental remediation costs, current												46.1
Reserve for environmental remediation costs, noncurrent												113.0
Reserve for environmental loss contingencies, obligation after EPA funding												143.0
Estimated environmental remediation expense												22.2
Centredale Site
Commitments and Contingencies Disclosure [Line Items]
Environmental remediation costs deemed probable and reasonable estimable												$ 57.2
Minimum
Commitments and Contingencies Disclosure [Line Items]
Environmental remediation costs deemed probable and reasonable estimable		$ 420.0
Environmental liability discount rate												0.10%
Undiscounted environmental liability												$ 40.9
Minimum | Property, Plant and Equipment, Other Types
Commitments and Contingencies Disclosure [Line Items]
Environmental remediation costs deemed probable and reasonable estimable												$ 93.7
Maximum
Commitments and Contingencies Disclosure [Line Items]
Environmental remediation costs deemed probable and reasonable estimable		$ 468.0
Environmental liability discount rate												2.00%
Undiscounted environmental liability												$ 44.7
Maximum | Property, Plant and Equipment, Other Types
Commitments and Contingencies Disclosure [Line Items]
Environmental remediation costs deemed probable and reasonable estimable												$ 229.3