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Significant Accounting Policies Other Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Cash Surrender Value of Life Insurance $ 36,087 $ 36,869
Equity Method Investments 2,719 2,336
Other Assets, Miscellaneous, Noncurrent 4,801 4,304
Other Assets, Noncurrent $ 43,607 $ 43,509