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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
Jul. 26, 2019
$ / shares
Jul. 19, 2019
USD ($)
$ / shares
Jun. 30, 2019
USD ($)
Jul. 06, 2017
USD ($)
$ / shares
shares
Oct. 03, 2016
shares
Sep. 30, 2016
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Recipient
Lawsuits
mi
shares
Jun. 30, 2018
Parties
Loss Contingencies [Line Items]                  
Number of putative class action lawsuits (in lawsuits) | Lawsuits               2  
Share conversion ratio upon merger       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          
Accrual for Environmental Loss Contingencies, Significant Assumptions               $ 0.1  
Miles of river included in the remedial investigation and feasibility study | mi               8.3  
Standby letters of credit outstanding     $ 64.0       $ 64.0 $ 64.0  
Accrued interest awarded to remaining dissenting shareholders     35.0            
Reduction in net revenue due to return authorization notice             13.0    
Environmental Remediation Expense               $ 46.1  
Minimum                  
Loss Contingencies [Line Items]                  
Inventory Recall Expense             10.0    
Maximum                  
Loss Contingencies [Line Items]                  
Inventory Recall Expense             15.0    
Jarden Acquisition                  
Loss Contingencies [Line Items]                  
Number of shares holding by dissenting shareholders (in shares) | shares       2.9 10.6     2.9  
Number of common stock transferred on settlement (in shares) | shares       7.7          
Litigation Settlement, Amount Awarded to Other Party, Per Share | $ / shares       $ 21.00          
Assumed acquisition price       $ 171.0          
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) | Parties                 120
Lower Passaic River Matter | Minimum                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     315.0       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 3,200.0  
Lower Passaic River Maintenance Costs | Minimum                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     0.5       0.5 0.5  
Lower Passaic River Maintenance Costs | Maximum                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     1.8       1.8 1.8  
Lower Passaic River Matter - Preferred Alternative                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     1,700.0       1,700.0 $ 1,700.0  
Loss contingency estimated period               30 years  
Lower Passaic River Matter - Preferred Alternative Maintenance Costs                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     1.6       1.6 $ 1.6  
Lower Passaic River Matter - Alternative Range from Participating Parties | Minimum                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     28.0       28.0 28.0  
Lower Passaic River Matter - Alternative Range from Participating Parties | Maximum                  
Loss Contingencies [Line Items]                  
Loss contingency, estimate of possible loss     $ 2,700.0       $ 2,700.0 2,700.0  
Lower Passaic River Matter - Selected Remedy for the Preferred Alternative                  
Loss Contingencies [Line Items]                  
Settlement amount           $ 0.3   $ 1,400.0  
Subsequent Event                  
Loss Contingencies [Line Items]                  
Settlement amount   $ 140.0              
Subsequent Event | Jarden Acquisition                  
Loss Contingencies [Line Items]                  
Litigation Settlement, Amount Awarded to Other Party, Per Share | $ / shares $ 59.21 $ 48.31              
Lower half of river                  
Loss Contingencies [Line Items]                  
Miles of river included in the remedial investigation and feasibility study | mi               17