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Commitments and Contingencies Commitments and Contingencies - Environmental Textuals (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Environmental-related assets | $ 18.6 |
Qualified Settlement Fund [Member] |  |
Deferred Income |  | $ 7.2
Amortization of Deferred Gain | 7.2 |
Qualified Settlement Fund [Member] | Discontinued Operations [Member] |  |
Amortization of Deferred Gain | $ 1.3 |

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- Definition Amount of deferred income excluding obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28183603&loc=d3e692-112598 + Details
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- Definition Recorded amount of the individual components comprising the asset for third-party recoveries related to environmental remediation obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237650&loc=d3e13022-110858 + Details
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