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Accounting Policies - Receivables Past Due 90 Days (Details 1) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Accounting Policies [Abstract] |  |
Accounts Receivable, Noncurrent, 90 Days or More Past Due, Still Accruing | $ 43.9 | $ 46.7

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- References No definition available. + Details
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- Definition Amount of accounts receivable, classified as noncurrent, 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
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