Accumulated Other Comprehensive Income (Loss) (Schedule Of After-Tax Changes In Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income (loss), Beginning balance			$ (102,347)
Other comprehensive income (loss) before reclassifications			(13,327)
Amounts reclassified from accumulated other comprehensive income (loss)			4,532
Net other comprehensive income (loss) - current period	(11,455)	(15,355)	(8,795)	(8,280)
Accumulated other comprehensive income (loss), Ending balance	(111,142)		(111,142)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income (loss), Beginning balance			131
Other comprehensive income (loss) before reclassifications			(12,880)
Net other comprehensive income (loss) - current period			(12,880)
Accumulated other comprehensive income (loss), Ending balance	(12,749)		(12,749)
Gain (Loss) On Derivative Financial Instruments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income (loss), Beginning balance			993
Other comprehensive income (loss) before reclassifications			(447)
Amounts reclassified from accumulated other comprehensive income (loss)			(93)
Net other comprehensive income (loss) - current period			(540)
Accumulated other comprehensive income (loss), Ending balance	453		453
Pension & Other Post-Retirement Benefit Adjust. [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income (loss), Beginning balance			(103,471)
Amounts reclassified from accumulated other comprehensive income (loss)			4,625
Net other comprehensive income (loss) - current period			4,625
Accumulated other comprehensive income (loss), Ending balance	$ (98,846)		$ (98,846)