Employee Benefit Plans (Plans With Accumulated Benefit Obligations In Excess Of Plan Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Plans with accumulated benefit obligations in excess of plan assets:
Projected benefit obligation	$ 16,492	$ 17,236
Accumulated benefit obligation	15,496	16,122
Fair value of plan assets	14,703	15,356
Plans with plan assets in excess of accumulated benefit obligations:
Projected benefit obligation	12,739	9,741
Accumulated benefit obligation	10,687	8,132
Fair value of plan assets	$ 11,406	$ 8,752

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details