Acquisition - Hi-Rail Assets (Details) - USD ($) $ in Thousands			3 Months Ended		12 Months Ended
	Dec. 31, 2022	Jan. 14, 2022	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 703,827		$ 703,848		$ 703,827
Net cash paid			$ 0	$ 50,513
Hi-Rail
Business Acquisition [Line Items]
Current assets	3,847	$ 2,891			3,847
Changes in current assets					956
Property, equipment and other assets	819	819			819
Changes in property, equipment and other assets					0
Rental equipment	34,224	34,224			34,224
Changes in rental equipment					0
Total identifiable assets acquired	38,890	37,934			38,890
Changes in total identifiable assets acquired					956
Total identifiable liabilities assumed	(7,607)	(6,011)			(7,607)
Changes in total identifiable liabilities assumed					(1,596)
Total net assets	31,283	31,923			31,283
Changes in total net assets					(640)
Goodwill	8,644	8,685			8,644
Changes in goodwill					(41)
Intangible assets	11,027	11,027			11,027
Changes in intangible assets					0
Net assets acquired (purchase price)	50,954	51,635			50,954
Changes in net assets acquired (purchase price)					(681)
Less: cash acquired	(1,122)	(1,122)
Changes in less: cash acquired					0
Net cash paid	$ 49,832	$ 50,513
Changes in net cash paid					$ (681)