Litigation and Related Matters (Narrative) (Details) $ in Millions |
1 Months Ended | 3 Months Ended | 12 Months Ended | 48 Months Ended | ||
|---|---|---|---|---|---|---|
|
Sep. 30, 2010
Site
|
Mar. 31, 2024
USD ($)
Site
|
Mar. 31, 2023
USD ($)
|
Dec. 31, 2007 |
Dec. 31, 2021
USD ($)
|
Dec. 31, 2023
USD ($)
|
|
| Loss Contingencies [Line Items] | ||||||
| Settlement agreement amount of litigation agreement | $ 53.0 | |||||
| Environmental insurance recoveries received in excess of cumulative expenses incurred | $ 2.6 | $ 2.6 | ||||
| Reserves for potential environmental liabilities | $ 0.1 | |||||
| Macon Site [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Number of landfills listed as Superfund site | Site | 2 | |||||
| Number of landfills AWI entered into an Administrative Order on Consent for a Removal Action | Site | 1 | |||||
| Submission date of final report to EPA | Oct. 31, 2016 | |||||
| Elizabeth City [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Percentage of site costs Navy agreed to pay | 33.33% | |||||
| Other Long-Term Liabilities [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Environmental liabilities | $ 0.5 | $ 0.5 | ||||