Litigation and Contingencies - Additional Information (Detail) $ / shares in Units, shares in Millions, $ in Millions									1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 04, 2019 USD ($)	Jul. 26, 2019 $ / shares	Jul. 19, 2019 USD ($) $ / shares	Jul. 06, 2017 USD ($) shareholder $ / shares shares	Jul. 06, 2017 USD ($) shares	Aug. 12, 2016 shareholder	Jul. 08, 2016 shareholder	Jun. 14, 2016 shareholder	Sep. 30, 2016 USD ($)	Dec. 31, 2016 Recipient	Sep. 30, 2020 USD ($) lawsuit entity Recipient alternative mi	Aug. 07, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 party	Oct. 03, 2016 shares
Loss Contingencies [Line Items]
Number of securities action lawsuits (in lawsuits) | lawsuit											2
Number of dissenting shareholders (in shareholders) | shareholder				11		2	2	10
Share conversion ratio upon merger				86.20%	86.20%
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares				6.6
Issue of common stock to settling petitioners				$ 162.0	$ 162.0
Settlement amount			$ 140.0
Number Of PRPs (in recipients) | Recipient										20
Litigation settlement, paid to other party	$ 177.0
Reduction in net revenue due to return authorization notice											$ 22.0
Inventory recall, recovery amount											2.0
Environmental remediation expense											$ 43.0
Number of general notice letter recipients | entity											100
Number of remediation alternatives | alternative											4
Miles of river included in the remedial investigation and feasibility study | mi											8.3
Standby letters of credit outstanding											$ 49.0
Minimum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss											1.0
Maximum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss											$ 2.0
Jarden Acquisition
Loss Contingencies [Line Items]
Number of shares holding by dissenting shareholders (in shares) | shares				2.9	2.9										10.6
Number of common stock transferred on settlement (in shares) | shares				7.7
Litigation settlement, awarded to other party (in USD per share) | $ / shares		$ 59.21	$ 48.31	$ 21.00
Assumed acquisition price					$ 171.0
Operating cash flow related to business combination					$ 6.0
Lower Passaic River Matter
Loss Contingencies [Line Items]
Number of general notice letter recipients involved in remedial investigation and feasibility study | Recipient											72
Loss contingency estimated period											30 years
Number of parties sued (in parties) | party														120
Lower Passaic River Matter | Minimum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss											$ 315.0
Lower Passaic River Matter | Maximum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss											3,200.0
Lower Passaic River Matter - Preferred Alternative
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss											1,700.0
Lower Passaic River Matter - Preferred Alternative Maintenance Costs
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss											$ 2.0
Lower Passaic River Matter - Alternative Range from Participating Parties
Loss Contingencies [Line Items]
Miles of river included in the remedial investigation and feasibility study | mi											9
Lower Passaic River Matter - Alternative Range from Participating Parties | Minimum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss												$ 321.0	$ 28.0
Lower Passaic River Matter - Alternative Range from Participating Parties | Maximum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss												$ 468.0	$ 2,700.0
Lower Passaic River Matter - Selected Remedy for the Preferred Alternative
Loss Contingencies [Line Items]
Settlement amount									$ 0.3		$ 1,400.0
Lower half of river
Loss Contingencies [Line Items]
Miles of river included in the remedial investigation and feasibility study | mi											17