Revenue Recognition - Summary of Disaggregated Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Net revenue	$ 295.0	$ 220.6	$ 856.5	$ 593.2
Accounting Standards Update Topic 840
Revenues:
Net revenue	41.7	32.2	113.0	83.4
Topic 606
Revenues:
Net revenue	253.3	188.4	743.5	509.8
New and Used Equipment Sales
Revenues:
Net revenue	136.8	97.9	392.6	275.2
New and Used Equipment Sales | Topic 606
Revenues:
Net revenue	136.8	97.9	392.6	275.2
Parts Sales
Revenues:
Net revenue	44.8	35.5	130.3	92.3
Parts Sales | Topic 606
Revenues:
Net revenue	44.8	35.5	130.3	92.3
Service Revenue
Revenues:
Net revenue	41.9	35.5	123.0	94.1
Service Revenue | Topic 606
Revenues:
Net revenue	41.9	35.5	123.0	94.1
Rental Revenue
Revenues:
Net revenue	41.7	32.2	113.0	83.4
Rental Revenue | Accounting Standards Update Topic 840
Revenues:
Net revenue	41.7	32.2	113.0	83.4
Rental Equipment Sales
Revenues:
Net revenue	29.8	19.5	97.6	48.2
Rental Equipment Sales | Topic 606
Revenues:
Net revenue	$ 29.8	$ 19.5	$ 97.6	$ 48.2