Floor Plans - Additional Information (Details) - USD ($)		3 Months Ended		6 Months Ended
	Jun. 28, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Line Of Credit Facility [Line Items]
Floor plan financing facility		$ 292,400,000		$ 292,400,000		$ 219,500,000
Recognized interest expense		13,700,000	$ 6,800,000	25,700,000	$ 12,900,000
First Lien Lender | Floor Plans and ABL Facility
Line Of Credit Facility [Line Items]
Floor plan financing facility		640,600,000		640,600,000		476,400,000
Maximum borrowing capacity		875,000,000		875,000,000
Debt issuance costs		2,300,000		2,300,000		2,100,000
First Lien Lender | JP Morgan Chase Bank | First Lien Floor Plan Facility
Line Of Credit Facility [Line Items]
Floor plan financing facility		$ 63,800,000		$ 63,800,000		$ 58,600,000
Effective interest rate		8.00%		8.00%		7.00%
First Lien Lender | JP Morgan Chase Bank | First Lien Floor Plan Facility | Yale Industrial Trucks Inc. | Minimum
Line Of Credit Facility [Line Items]
Maximum borrowing capacity	$ 60,000,000
Borrowing capacity increased	$ 10,000,000.0
First Lien Lender | JP Morgan Chase Bank | First Lien Floor Plan Facility | Yale Industrial Trucks Inc. | Maximum
Line Of Credit Facility [Line Items]
Maximum borrowing capacity		$ 70,000,000.0		$ 70,000,000.0
Original Equipment Manufacturer ("OEM") Captive Lenders and Suppliers | JP Morgan Chase Bank | Floor Plan Facilities | Minimum
Line Of Credit Facility [Line Items]
Maximum borrowing capacity		100,000		100,000
Original Equipment Manufacturer ("OEM") Captive Lenders and Suppliers | JP Morgan Chase Bank | Floor Plan Facilities | Maximum
Line Of Credit Facility [Line Items]
Maximum borrowing capacity		148,500,000		148,500,000
Original Equipment Manufacturer ("OEM") Captive Lenders and Suppliers | JP Morgan Chase Bank | OEM Floor Plan Facilities
Line Of Credit Facility [Line Items]
Floor plan financing facility		$ 284,400,000		$ 284,400,000		$ 198,300,000
Original Equipment Manufacturer ("OEM") Captive Lenders and Suppliers | JP Morgan Chase Bank | OEM Floor Plan Facilities | Minimum
Line Of Credit Facility [Line Items]
Effective interest rate		8.10%		8.10%
Original Equipment Manufacturer ("OEM") Captive Lenders and Suppliers | JP Morgan Chase Bank | OEM Floor Plan Facilities | Maximum
Line Of Credit Facility [Line Items]
Effective interest rate		10.20%		10.20%
Interest only or deferred payment period				12 months
Alta Enterprises, LLC, NITCO, LLC and Other Credit Parties [Member] | JP Morgan Chase Bank | Floor Plans
Line Of Credit Facility [Line Items]
Weighted average rate on Floor Plan Facilities		7.70%	4.00%	7.70%	4.00%
Alta Enterprises, LLC, NITCO, LLC and Other Credit Parties [Member] | JP Morgan Chase Bank | Floor Plan Facilities
Line Of Credit Facility [Line Items]
Floor plan financing facility		$ 348,200,000		$ 348,200,000		$ 256,900,000
Maximum borrowing capacity		390,000,000		390,000,000
Recognized interest expense		$ 1,900,000	$ 500,000	$ 3,400,000	$ 800,000