Employee Benefit Plans (Fair Value Measurements Using Significant Unobservable Inputs For Fixed Maturity Investments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Employee Benefit Plans [Abstract]
Fair value of plan assets at beginning of year	$ 10,259	$ 6,564
Realized gains (losses)	21	7
Unrealized gains (losses)	(2,380)	1,629
Purchases	1,200	2,000
Investment income earned on assets	(95)	146
Sales	(123)	(88)
Fair value of plan assets at end of year	8,882	10,259
The amount of total gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets still held at the reporting date	$ (2,401)	$ 2,149

The amount of increase in the plan assets attributed to a business combination.

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The amount of decrease in the plan assets attributed to the sale, liquidation, spin-off or other divestiture of a corporate division or subsidiary.

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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