Goodwill And Intangible Assets (Changes To Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Disclosure Goodwill And Intangible Assets Changes To Intangible Assets [Abstract]
Balance at beginning of period, net of accumulated amortization	$ 125,913	$ 146,227
Disposals	0	(3,789)
Amortization expense	(12,290)	(16,907)
Currency translation and other	1,168	382
Balance at end of period, net of accumulated amortization	$ 114,791	$ 125,913