Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Dispositions - Revenues and Other Activities Associated with Disposed Dealerships That Remain in Continuing Operations (Details)

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Business Acquisitions and Dispositions - Revenues and Other Activities Associated with Disposed Dealerships That Remain in Continuing Operations (Details) - Disposed dealerships that remain in continuing operations - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Income (loss) from operations $ (1,119) $ 337 $ (1,964) $ (2,499)
Gain (loss) on disposal 3,388 (823) 2,273 45,570
Lease exit accrual adjustments and charges 0 0 0 169
Pre-tax income (loss) 2,269 (486) 309 43,240
Total revenues $ 11,050 $ 110,274 $ 44,817 $ 358,788