Derivative Financial Instruments (Summary Of Location And Amounts Of Derivative Fair Values In The Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Derivative Financial Instruments [Line Items]
Asset Derivatives	$ 0	$ 0
Liability Derivatives	(278)	(1,325)
Non-hedging derivatives [Member] | Interest rate swap agreements [Member] | Other liabilities [Member]
Derivative Financial Instruments [Line Items]
Asset Derivatives	0	0
Liability Derivatives	(103)	(670)
Non-hedging derivatives [Member] | Equity contracts [Member] | Other liabilities [Member]
Derivative Financial Instruments [Line Items]
Asset Derivatives	0	0
Liability Derivatives	$ (175)	$ (655)