Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions |
9 Months Ended | |
---|---|---|
Jan. 02, 2020 |
Sep. 30, 2022 |
|
Loss Contingencies [Line Items] | ||
Record of decision description | The ROD includes a combination of dredging, capping, and enhanced natural recovery that would take approximately thirteen years to construct plus additional time for monitored natural recovery | |
Estimated present value cost for construction and recovery | $ 1,050 | |
Remediation plan description | the EPA indicated that it expected PRPs to submit a plan during 2019 to start remediation of the river and harbor per the ROD within the next two to three years. | |
Percentage of acreage on remediation | 100.00% | |
Minimum [Member] | ||
Loss Contingencies [Line Items] | ||
Remediation plan due date | 2 years | |
Maximum [Member] | ||
Loss Contingencies [Line Items] | ||
Remediation plan due date | 3 years |