Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Detail)

v2.4.0.8
Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Detail) (China [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
China [Member]
       
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Independent service providers service fee costs $ 61.0 $ 34.4 $ 145.7 $ 93.7