Segment Information - (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segment	Jun. 30, 2013
Segment Information [Abstract]
Operating segments			4
Net foreign currency transaction gains	$ 5.1		$ 5.8
Net foreign currency transaction losses		$ 5.6		$ 7.7