Nature Of Operations And Significant Accounting Policies (Schedule Of Changes To Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Balance at beginning of period, net of accumulated amortization	$ 125,913	$ 146,227
Additions	301,800	0
Disposals	(311)	(3,789)
Amortization expense	18,795	16,907
Currency translation and other	316	382
Balance at end of period, net of accumulated amortization	$ 408,923	$ 125,913