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Leases - Lease Receivables (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Capital Leased Assets [Line Items] |  |
Gross lease receivables | $ 286.1 | $ 191.9
Unearned income | (11.1) | (10.1)
Subtotal | 275.0 | 181.8
Allowance for credit loss | (4.4) | (1.2)
Net investment in sales-type leases | 270.6 | 180.6
Prepaid and other current assets |  |
Capital Leased Assets [Line Items] |  |
Net investment in sales-type leases | 81.1 | 63.1
Intangible and other assets, net |  |
Capital Leased Assets [Line Items] |  |
Net investment in sales-type leases | $ 189.5 | $ 117.5

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- Definition Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919379-209981 + Details
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- Definition Amount of allowance for credit loss on net investment in sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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