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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
China [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Independent service providers service fee costs	$ 53.2	$ 33.5	$ 84.7	$ 59.3