Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies - Cumulative Effect of Adjustments for Adoption of ASC 606 (Details)

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Description of Business and Summary of Significant Accounting Policies - Cumulative Effect of Adjustments for Adoption of ASC 606 (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenues:      
Total revenues $ 9,767,042,000 $ 10,454,343,000 $ 9,951,630,000
Cost of Sales:      
Work in process 3,900,000 5,100,000  
Total cost of sales (8,343,397,000) (8,933,326,000) (8,505,505,000)
Operating income (loss) 33,939,000 307,706,000 177,663,000
Assets:      
Receivables, net 371,666,000 432,742,000  
Liabilities:      
Other accrued liabilities 279,477,000 266,211,000  
Stockholders’ Equity:      
Retained Earnings (Accumulated Deficit) 721,770,000 790,158,000  
Parts, service and collision repair      
Revenues:      
Total revenues 1,233,735,000 1,395,303,000 1,380,887,000
Cost of Sales:      
Total cost of sales (639,182,000) (727,288,000) (713,526,000)
Finance, insurance and other, net      
Revenues:      
Total revenues 489,874,000 476,951,000 $ 405,523,000
ASU 2014-09 | Finance, insurance and other, net      
Assets:      
Contract with Customer, Asset, Net, Current $ 21,700,000 $ 12,900,000