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Litigation and Contingencies - Additional Information (Detail)
$ / shares in Units, shares in Millions, $ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended 13 Months Ended
Oct. 04, 2019
USD ($)
Jul. 26, 2019
$ / shares
Jul. 19, 2019
USD ($)
$ / shares
Jul. 06, 2017
USD ($)
shares
Jul. 06, 2017
USD ($)
shareholder
$ / shares
shares
Aug. 12, 2016
shareholder
Jul. 08, 2016
shareholder
Jun. 14, 2016
shareholder
Sep. 30, 2016
USD ($)
Sep. 30, 2016
Recipient
Jun. 30, 2020
USD ($)
lawsuit
entity
Recipient
alternative
mi
Jun. 30, 2020
USD ($)
Aug. 12, 2019
USD ($)
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 , Value       $ 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                     $ 2.0 $ 22.0        
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                     $ 50.0 50.0        
Minimum                                
Loss Contingencies [Line Items]                                
Loss contingency, estimate of possible loss                     1.0 1.0        
Maximum                                
Loss Contingencies [Line Items]                                
Loss contingency, estimate of possible loss                     $ 2.0 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 dollars 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                     $ 315.0 315.0        
Lower Passaic River Matter | Maximum                                
Loss Contingencies [Line Items]                                
Loss contingency, estimate of possible loss                     3,200.0 3,200.0        
Lower Passaic River Matter - Preferred Alternative                                
Loss Contingencies [Line Items]                                
Loss contingency, estimate of possible loss                     1,700.0 1,700.0        
Lower Passaic River Matter - Preferred Alternative Maintenance Costs                                
Loss Contingencies [Line Items]                                
Loss contingency, estimate of possible loss                     $ 2.0 $ 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                         $ 6.0 $ 28.0    
Lower Passaic River Matter - Alternative Range from Participating Parties | Maximum                                
Loss Contingencies [Line Items]                                
Loss contingency, estimate of possible loss                         $ 460.0 $ 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