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Other Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Cash surrender value of life insurance policies $ 30,351 $ 36,269
Deposits 2,564 2,343
Other 2,378 6,921
Total other assets $ 35,293 $ 45,533