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v3.20.1

Segment Information (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 USD ($) segments | Mar. 31, 2019 USD ($) segments
Segment Reporting Information [Line Items] |  |  |
Number of reportable segments | segments |  | 3 | 3
Revenues |  | $ 4,667.0 | $ 4,981.8
Segment income |  | 200.2 | 213.1
AN Reportable Segment, Domestic [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues |  | 1,483.5 | 1,568.8
Segment income | [1] | 54.1 | 56.2
AN Reportable Segment, Import [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues |  | 1,362.1 | 1,496.1
Segment income | [1] | 65.9 | 72.6
AN Reportable Segment, Premium Luxury [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues |  | 1,616.8 | 1,734.1
Segment income | [1] | $ 80.2 | $ 84.3
[1] | Segment income represents income for each of our reportable segments and is defined as operating income less floorplan interest expense.

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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