Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue from External Customer [Line Items]
Topic 840	$ 44,468	$ 47,821	$ 138,429	$ 137,194
Topic 606	24,792	14,621	81,055	49,595
Total	69,260	62,442	219,484	186,789
Revenue
Revenue from External Customer [Line Items]
Topic 840	44,468	47,821	138,429	137,194
Topic 606	1,657	2,282	5,674	6,677
Total	46,125	50,103	144,103	143,871
Rental Revenue, Excluding Shipping And Handling
Revenue from External Customer [Line Items]
Topic 840	44,468	47,821	138,429	137,194
Topic 606	0	0	0	0
Total	44,468	47,821	138,429	137,194
Rental Revenue, Shipping And Handling
Revenue from External Customer [Line Items]
Topic 840	0	0	0	0
Topic 606	1,657	2,282	5,674	6,677
Total	1,657	2,282	5,674	6,677
Sales and services
Revenue from External Customer [Line Items]
Topic 840	0	0	0	0
Topic 606	23,135	12,339	75,381	42,918
Total	23,135	12,339	75,381	42,918
Sales of rental equipment
Revenue from External Customer [Line Items]
Topic 840	0	0	0	0
Topic 606	5,510	3,436	19,585	15,167
Total	5,510	3,436	19,585	15,167
Sales of new equipment
Revenue from External Customer [Line Items]
Topic 840	0	0	0	0
Topic 606	6,048	1,246	19,043	8,076
Total	6,048	1,246	19,043	8,076
Parts sales and services
Revenue from External Customer [Line Items]
Topic 840	0	0	0	0
Topic 606	11,577	7,657	36,753	19,675
Total	$ 11,577	$ 7,657	$ 36,753	$ 19,675