Organization and Summary of Significant Accounting Policies - Retail Automotive (Details) - Retail automotive dealership	1 Months Ended	12 Months Ended
	Jan. 31, 2024 franchise dealership	Dec. 31, 2023 franchise dealership	Dec. 31, 2022 franchise
U.S.
Summary Of Significant Accounting Policies [Line Items]
Number of locations closed		7
U.K.
Summary Of Significant Accounting Policies [Line Items]
Number of locations closed		5
Franchised Dealerships
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired			19
Number of locations operated		336
Franchised Dealerships | Outside of the U.S.
Summary Of Significant Accounting Policies [Line Items]
Number of locations operated		189
Franchised Dealerships | U.S.
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired		2	4
Number of locations operated		147
Number of locations closed		6
Franchised Dealerships | U.S. | Ford | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired | dealership	1
Franchised Dealerships | U.S. | Chrysler, Dodge, Jeep, Ram | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired | dealership	1
Franchised Dealerships | U.K.
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired			15
Number of locations closed		4
Franchised Dealerships | U.K. | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	16
Franchised Dealerships | U.K. | BMW | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	4
Franchised Dealerships | U.K. | BMW | Rybrook Group Limited | Subsequent Event | BMW Motorrad Motorcycles
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	3
Franchised Dealerships | U.K. | MINI | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	4
Franchised Dealerships | U.K. | Volvo | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	4
Franchised Dealerships | U.K. | Land Rover | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	2
Franchised Dealerships | U.K. | Jaguar | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	1
Franchised Dealerships | U.K. | Porsche | Rybrook Group Limited | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired	1
Franchised Dealerships | Italy
Summary Of Significant Accounting Policies [Line Items]
Number of Businesses Acquired		2
CarShop Used Vehicle Dealerships | U.S.
Summary Of Significant Accounting Policies [Line Items]
Number of locations operated | dealership		7
Number of locations closed		1
CarShop Used Vehicle Dealerships | U.S. | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
Number of locations closed	1
CarShop Used Vehicle Dealerships | U.S. and U.K.
Summary Of Significant Accounting Policies [Line Items]
Number of locations operated | dealership		19
CarShop Used Vehicle Dealerships | U.K.
Summary Of Significant Accounting Policies [Line Items]
Number of locations operated | dealership		12
Number of locations closed		1