Goodwill And Intangible Assets (Changes To Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 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	(8,289)	(16,907)
Currency translation and other	(3,034)	382
Balance at end of period, net of accumulated amortization	$ 114,590	$ 125,913