Business Combinations - Pro Forma Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Increase (decrease) net income/loss:
Net income (loss)	$ (3,273)	$ (27,907)
Custom Truck
Increase (decrease) net income/loss:
Federal tax rate	25.00%
Impact of fair value mark-ups on rental fleet depreciation
Increase (decrease) net income/loss:
Net income (loss)		(3,817)
Intangible asset amortization and other depreciation expense
Increase (decrease) net income/loss:
Net income (loss)		(2,390)
Transaction expenses
Increase (decrease) net income/loss:
Net income (loss)		15,702
Interest expense and amortization of debt issuance costs
Increase (decrease) net income/loss:
Net income (loss)		3,919
Income tax expense
Increase (decrease) net income/loss:
Net income (loss)		$ (3,354)