Schedule of Disposal of Assets (Detail) $ in Thousands		3 Months Ended	9 Months Ended
	Jul. 24, 2018 USD ($) Fleet	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 106,195
Estimated net proceeds	(8,008)
Initial estimated net loss on impairment and divestiture	98,187
Net proceeds received (above) below impaired value	91
Estimated net loss on impairment and divestiture	$ 98,278	$ 98,278	$ 98,278
Units | Fleet	25,406
Tank & Pump Solutions
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 1,223
Units | Fleet	472
Other
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 9,644
North America | Storage Solutions | Steel storage containers
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 56,986
Units | Fleet	19,718
North America | Storage Solutions | Steel ground level offices
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 29,969
Units | Fleet	3,459
North America | Storage Solutions | Other
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 346
Units | Fleet	275
United Kingdom | Storage Solutions
Long Lived Assets Held For Sale [Line Items]
Net book value	$ 8,027
Units | Fleet	1,482