Revenue - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 508,894	$ 425,323
Leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	393,192	315,662
Modular space leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	199,078	169,952
Portable storage leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	77,988	54,613
Tank and pump leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	19,230	15,760
VAPS and third party leasing revenues
Disaggregation of Revenue [Line Items]
Total revenues	80,926	62,426
Other leasing-related revenue
Disaggregation of Revenue [Line Items]
Total revenues	15,970	12,911
Total leasing and services revenue
Disaggregation of Revenue [Line Items]
Total revenues	493,523	399,166
Delivery and installation revenue
Disaggregation of Revenue [Line Items]
Total revenues	100,331	83,504
New unit sales revenue
Disaggregation of Revenue [Line Items]
Total revenues	6,597	10,955
Rental unit sales revenue
Disaggregation of Revenue [Line Items]
Total revenues	8,774	15,202
VAPS service
Disaggregation of Revenue [Line Items]
Total revenues	7,500	6,200
US
Disaggregation of Revenue [Line Items]
Total revenues	451,968	371,269
Canada
Disaggregation of Revenue [Line Items]
Total revenues	25,273	23,584
Mexico
Disaggregation of Revenue [Line Items]
Total revenues	4,214	3,463
UK
Disaggregation of Revenue [Line Items]
Total revenues	$ 27,439	$ 27,007