Specialty Rental Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation	$ (307,025)		$ (294,292)
Specialty rental assets, net	281,837		291,792
Depreciation	12,800	$ 12,440
Specialty rental assets
Property, Plant and Equipment [Line Items]
Specialty rental assets, gross	584,511		582,527
Depreciation	12,800	$ 12,400
Construction-in-process
Property, Plant and Equipment [Line Items]
Specialty rental assets, gross	$ 4,351		$ 3,557

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of expense for allocation of cost of tangible asset over its useful life directly used in production of good and rendering of service.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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