Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Recognition of previously deferred revenue for removal services for lease transactions and advance billings for sale transactions	$ 20.3
Deferred revenue for removal services for lease transactions and advance billings for sale transactions	$ 84.4		$ 79.4
Modular Leasing \| Revenues \| Revenue Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	76.00%	73.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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