Intangibles - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Intangible assets subject to amortization:
Accumulated amortization	$ (45,715)	$ (38,822)
Net book value	164,785
Intangible Assets, Net (Including Goodwill) [Abstract]
Gross carrying amount	499,500	499,500
Accumulated amortization	(45,715)	(38,822)
Net book value	453,785	460,678
Trade name - Mobile Mini
Indefinite-lived intangible assets:
Indefinite-lived intangible assets	164,000	164,000
Trade name - WillScot
Indefinite-lived intangible assets:
Indefinite-lived intangible assets	$ 125,000	$ 125,000
Mobile Mini customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining life (in years)	6 years 4 months 24 days	6 years 7 months 6 days
Intangible assets subject to amortization:
Gross carrying amount	$ 209,000	$ 209,000
Accumulated amortization	(45,277)	(38,447)
Net book value	163,723	170,553
Intangible Assets, Net (Including Goodwill) [Abstract]
Accumulated amortization	$ (45,277)	$ (38,447)
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining life (in years)	4 years 3 months 18 days	4 years 6 months
Intangible assets subject to amortization:
Gross carrying amount	$ 1,500	$ 1,500
Accumulated amortization	(438)	(375)
Net book value	1,062	1,125
Intangible Assets, Net (Including Goodwill) [Abstract]
Accumulated amortization	$ (438)	$ (375)