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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 |

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