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Other Investment and Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Other Investments and Assets [Abstract]
Cash surrender value of life insurance	$ 19,142	$ 18,812
Workers' compensation insurance security deposits	3,350	4,658
Other	9,924	7,581
Total other investment and assets	$ 32,416	$ 31,051

- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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