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NATURE OF OPERATIONS AND BASIS OF PRESENTATION - Additional Information (Detail)
Sep. 30, 2011
Entity
Location
Point
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] 
Number of data centers37
Number of service centers76
Networked
 
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] 
Number of points of presence18
Standalone
 
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] 
Number of points of presence1