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Other Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Cash surrender value of life insurance policies $ 30,706 $ 30,351
Deposits 2,502 2,564
Other 964 2,378
Total other assets $ 34,172 $ 35,293