Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Fair Value Measurements
Transfers of assets or liabilities between the fair value measurement levels 3	$ 0	$ 0
Level 2 | Carrying Value | Term Loan Facility
Fair Value Measurements
Debt instrument	1,359,230	1,367,277
Level 2 | Carrying Value | Floor Plan Facility
Fair Value Measurements
Debt instrument	20,885	20,885
Level 2 | Carrying Value | Real Estate Facilities
Fair Value Measurements
Debt instrument	21,666	22,896
Level 2 | Carrying Value | Other Long-Term Debt
Fair Value Measurements
Debt instrument	3,311	3,400
Level 2 | Fair Value | Term Loan Facility
Fair Value Measurements
Debt instrument	1,394,290	1,382,372
Level 2 | Fair Value | Floor Plan Facility
Fair Value Measurements
Debt instrument	18,191	20,885
Level 2 | Fair Value | Real Estate Facilities
Fair Value Measurements
Debt instrument	20,153	22,981
Level 2 | Fair Value | Other Long-Term Debt
Fair Value Measurements
Debt instrument	$ 2,926	$ 3,400