Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.20.1
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Schedule of Equity Method Investments [Line Items]      
Discrete charge for non-deductible executive compensation, transition costs     $ 1,500
Percentage of dealership that is accounted for under the equity method   50.00%  
Contract work in process $ 5,100 $ 3,600  
Effective tax rate from continuing operations   18.20% 31.00%
Tax expense for uncertain tax positions   $ 100 $ 200
Discrete benefit related to vested or exercised stock compensation   500 200
Income benefit   44,117 (18,987)
Impairment charges   268,000 $ 1,952
Income Tax Benefit Goodwill Impairment   $ 51,300  
Dealership      
Schedule of Equity Method Investments [Line Items]      
Percentage of dealership that is accounted for under the equity method   50.00%  
ASU 2014-09 | Finance, insurance and other, net      
Schedule of Equity Method Investments [Line Items]      
Contract assets $ 12,900 $ 5,200