Assets Segments (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]    
Goodwill $ 703,337 $ 705,608
Intangibles 76,965 78,385
Rental Fleet 1,019,663 1,087,056
Property Plant and Equipment 116,735 113,175
Portable Storage    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Goodwill 520,486 523,636
Intangibles 2,530 2,770
Rental Fleet 896,166 965,837
Property Plant and Equipment 102,664 99,002
Portable Storage | North America    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Goodwill 458,852 459,234
Intangibles 1,912 2,119
Rental Fleet 755,434 825,158
Property Plant and Equipment 87,153 82,514
Portable Storage | United Kingdom    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Goodwill 61,634 64,402
Intangibles 618 651
Rental Fleet 140,732 140,679
Property Plant and Equipment 15,511 16,488
Specialty Containment    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Goodwill 182,851 181,972
Intangibles 74,435 75,615
Rental Fleet 123,497 121,219
Property Plant and Equipment $ 14,071 $ 14,173