Business Combinations - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Apr. 01, 2021	Sep. 30, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill		$ 703,411	$ 695,865
Custom Truck
Business Acquisition [Line Items]
Accounts and financing receivables	$ 115,325
Inventory	431,648
Other current assets	13,201
Property and equipment	104,721
Rental equipment	556,569
Intangible assets	301,018
Operating lease assets	23,793
Other assets	18,223
Total identifiable assets acquired	1,564,498
Current liabilities	(410,276)
Long-term debt	(28,607)
Operating lease liabilities-noncurrent	(21,308)
Deferred tax and other liabilities	(31,261)
Total identifiable liabilities assumed	(491,452)
Total net assets	1,073,046
Goodwill	457,813
Net assets acquired (purchase price)	1,530,859
Gross contractual receivables	122,400
Estimated uncollectible receivables	7,000
Expected deductible amount of goodwill	265,400
Custom Truck | Land, Buildings and Improvements
Business Acquisition [Line Items]
Property and equipment	67,900
Custom Truck | Machinery, equipment and vehicles
Business Acquisition [Line Items]
Property and equipment	31,100
Custom Truck | Other property
Business Acquisition [Line Items]
Property and equipment	5,700
Custom Truck | Trade names
Business Acquisition [Line Items]
Intangible assets	$ 151,000
Finite-lived intangible assets weighted average useful life	15 years
Custom Truck | Customer relationships
Business Acquisition [Line Items]
Intangible assets	$ 150,000
Finite-lived intangible assets weighted average useful life	12 years