Segments - Schedule of Results of Operations by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total revenues	$ 406.5	$ 292.7	$ 738.2	$ 561.5
Interest expense	6.8	6.0	12.9	11.8
Depreciation and amortization	27.3	23.9	51.5	45.3
Net income (loss)	5.4	(15.8)	3.4	(21.5)
Income (loss) before taxes	6.6	(14.7)	5.4	(19.9)
Operating Segments | Material Handling Segment
Segment Reporting Information [Line Items]
Total revenues	135.5	111.6	261.1	218.4
Interest expense	2.6	2.0	4.9	4.2
Depreciation and amortization	6.1	4.6	11.4	9.2
Income (loss) before taxes	4.9	1.9	8.9	3.2
Operating Segments | Construction Equipment Segment
Segment Reporting Information [Line Items]
Total revenues	271.0	181.1	477.1	343.1
Interest expense	3.8	3.7	7.3	6.8
Depreciation and amortization	21.2	19.3	40.1	36.1
Income (loss) before taxes	6.3	(1.7)	4.2	(5.0)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Interest expense	0.4	0.3	0.7	0.8
Income (loss) before taxes	(4.6)	(14.9)	(7.7)	(18.1)
New and Used Equipment Sales
Segment Reporting Information [Line Items]
Total revenues	217.3	132.0	368.9	255.8
New and Used Equipment Sales | Operating Segments | Material Handling Segment
Segment Reporting Information [Line Items]
Total revenues	72.1	60.1	139.0	117.5
New and Used Equipment Sales | Operating Segments | Construction Equipment Segment
Segment Reporting Information [Line Items]
Total revenues	145.2	71.9	229.9	138.3
Parts Sales
Segment Reporting Information [Line Items]
Total revenues	58.3	44.1	111.7	85.5
Parts Sales | Operating Segments | Material Handling Segment
Segment Reporting Information [Line Items]
Total revenues	20.1	15.7	39.3	30.9
Parts Sales | Operating Segments | Construction Equipment Segment
Segment Reporting Information [Line Items]
Total revenues	38.2	28.4	72.4	54.6
Service Revenue
Segment Reporting Information [Line Items]
Total revenues	51.7	42.4	99.9	81.1
Service Revenue | Operating Segments | Material Handling Segment
Segment Reporting Information [Line Items]
Total revenues	26.9	24.1	53.6	46.7
Service Revenue | Operating Segments | Construction Equipment Segment
Segment Reporting Information [Line Items]
Total revenues	24.8	18.3	46.3	34.4
Rental Revenue
Segment Reporting Information [Line Items]
Total revenues	43.6	38.2	81.3	71.3
Rental Revenue | Operating Segments | Material Handling Segment
Segment Reporting Information [Line Items]
Total revenues	14.2	11.4	27.0	22.5
Rental Revenue | Operating Segments | Construction Equipment Segment
Segment Reporting Information [Line Items]
Total revenues	29.4	26.8	54.3	48.8
Rental Equipment Sales
Segment Reporting Information [Line Items]
Total revenues	35.6	36.0	76.4	67.8
Rental Equipment Sales | Operating Segments | Material Handling Segment
Segment Reporting Information [Line Items]
Total revenues	2.2	0.3	2.2	0.8
Rental Equipment Sales | Operating Segments | Construction Equipment Segment
Segment Reporting Information [Line Items]
Total revenues	$ 33.4	$ 35.7	$ 74.2	$ 67.0