Business Combinations - Summary of Net Assets Acquired from Acquisition (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 53.8		$ 41.9	$ 24.3
Assets acquired net of cash	40.4	$ 3.9
Material Handling
Business Acquisition [Line Items]
Goodwill	13.8		11.6	10.2
Construction Equipment
Business Acquisition [Line Items]
Goodwill	40.0		$ 30.3	$ 14.1
YIT
Business Acquisition [Line Items]
Cash	2.3
Accounts receivable, net of allowances	9.5
Inventories, net	7.5
Prepaid expenses and other current assets	0.1
Rental fleet, net	21.3
Property and equipment, net	2.0
Operating lease right-of-use assets, net	2.2
Goodwill	2.3
Total Assets	47.2
Accounts payable	(1.5)
Accrued expenses	(1.5)
Current operating lease liabilities	(0.8)
Current portion of deferred revenue	(1.1)
Other current liabilities	(1.4)
Total Liabilities	(6.3)
Net Assets Acquired	40.9
Assets acquired net of cash	38.6
2021 Acquisitions
Business Acquisition [Line Items]
Cash	1.7
Accounts receivable, net of allowances	9.0
Inventories, net	28.1
Prepaid expenses and other current assets	0.4
Rental fleet, net	13.1
Property and equipment, net	3.9
Operating lease right-of-use assets, net	8.9
Other intangible assets, net	13.5
Goodwill	28.8
Total Assets	107.4
Floor plan payable	(17.1)
Accounts payable	(5.0)
Accrued expenses	(2.8)
Customer deposits	(2.0)
Current operating lease liabilities	(0.6)
Other current liabilities	(0.9)
Deferred tax liability	(3.7)
Long-term operating lease liabilities	(8.3)
Other liabilities	(0.8)
Total Liabilities	(41.2)
Net Assets Acquired	66.2
Assets acquired net of cash	64.5
2021 Acquisitions | Material Handling
Business Acquisition [Line Items]
Cash	0.5
Accounts receivable, net of allowances	0.9
Inventories, net	0.6
Prepaid expenses and other current assets	0.4
Property and equipment, net	0.6
Operating lease right-of-use assets, net	2.3
Other intangible assets, net	0.9
Goodwill	1.5
Total Assets	7.7
Accounts payable	(0.3)
Accrued expenses	(0.1)
Customer deposits	(0.6)
Current operating lease liabilities	(0.2)
Other current liabilities	(0.9)
Long-term operating lease liabilities	(2.1)
Total Liabilities	(4.2)
Net Assets Acquired	3.5
Assets acquired net of cash	3.0
2021 Acquisitions | Construction Equipment
Business Acquisition [Line Items]
Cash	1.2
Accounts receivable, net of allowances	8.1
Inventories, net	27.5
Rental fleet, net	13.1
Property and equipment, net	3.3
Operating lease right-of-use assets, net	6.6
Other intangible assets, net	12.6
Goodwill	27.3
Total Assets	99.7
Floor plan payable	(17.1)
Accounts payable	(4.7)
Accrued expenses	(2.7)
Customer deposits	(1.4)
Current operating lease liabilities	(0.4)
Deferred tax liability	(3.7)
Long-term operating lease liabilities	(6.2)
Other liabilities	(0.8)
Total Liabilities	(37.0)
Net Assets Acquired	62.7
Assets acquired net of cash	$ 61.5