Schedule of Changes in Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Net balance at January 1	$ 258,400	$ 259,084
Disposals	0	(1,800)
Currency translation	1,734	1,116
Net balance at December 31	$ 260,134	$ 258,400