Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Estimated Useful Lives

The range of estimated useful lives is as follows:

Buildings and improvements	5 to 40 years
Service equipment	5 to 15 years
Furniture, office equipment, signs and fixtures	3 to 10 years

Property and equipment consisted of the following:

	December 31,
(Dollars in millions)	2020		2019
Land	$	699.3	$	473.0
Building and improvements	1,149.7		948.0
Service equipment	123.6		113.3
Furniture, office equipment, signs and fixtures	512.9		327.0
	2,485.5		1,861.3
Less accumulated depreciation	(338.0)		(284.3)
	2,147.5		1,577.0
Construction in progress	50.0		34.7
	$	2,197.5	$	1,611.7

Schedule of Advertising Expense and Manufacturer Cooperative Advertising Credits

Advertising expense and manufacturer cooperative advertising credits were as follows:

	Year Ended December 31,
(Dollars in millions)	2020		2019		2018
Advertising expense, gross	$	121.3	$	139.8	$	134.2
Manufacturer cooperative advertising credits	(23.9)		(27.9)		(25.5)
Advertising expense, net	$	97.4	$	111.9	$	108.7