Pension Liabilities (Schedule Of Items Not Recognized As A Component Of Net Periodic Pension Cost) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Pension Liabilities [Abstract]
Unamortized actuarial (gain) loss	$ 2,269	$ (14)
Prior service costs	931	1,234
Accumulated other comprehensive loss	$ 3,200	$ 1,220

After tax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s).

No definition available.

Name:	us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant