Interim Financial Information - Business and Organization (Details)	Mar. 31, 2020 town states state dealership
U.S.
Business And Organization [Line Items]
Number of states in which the entity operates | state	15
Number of dealerships	119
United Kingdom
Business And Organization [Line Items]
Number of towns in which the entity operates | town	33
Number of dealerships	50
Brazil
Business And Organization [Line Items]
Number of states in which the entity operates | states	3
Number of dealerships	17