Changes In Accumulated Other Comprehensive Loss (Reclassifications Out Of Accumulated Other Comprehensive Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	$ (3,115)	$ (3,109)	$ (7,301)	$ (7,387)
Other revenues	456	522	1,417	1,616
(Loss) Income Before Benefit for Income Taxes and Equity in Net Income of Unconsolidated Entities	(1,248)	(1,844)	(5,170)	2,063
(Expense) Benefit for Income Taxes	(1,141)	(18)	(912)	(68)	12,268
Net (Loss) Income	(2,565)	(2,222)	(6,446)	1,290	18,532
Amount Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net (Loss) Income	(319)	(2,189)	(996)	(855)
Gains And Losses On Derivatives Fair Value [Member] | Amount Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Loss) Income Before Benefit for Income Taxes and Equity in Net Income of Unconsolidated Entities	(393)	(2,495)	(1,221)	(1,782)
Net (Loss) Income	(393)	(2,495)	(1,221)	(1,782)
Gains And Losses On Derivatives Fair Value [Member] | Interest Rate Contract [Member] | Amount Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	(426)	(2,444)	(1,105)	(1,796)
Gains And Losses On Derivatives Fair Value [Member] | Foreign Exchange Contracts [Member] | Amount Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other revenues	33	(51)	(116)	14
Defined Benefit Pension Items [Member] | Amount Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service costs	24	25	73	75
Actuarial losses	76	281	227	852
(Loss) Income Before Benefit for Income Taxes and Equity in Net Income of Unconsolidated Entities	100	306	300	927
(Expense) Benefit for Income Taxes	(26)		(75)
Net (Loss) Income	$ 74	$ 306	$ 225	$ 927