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Leases - Net Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Leases [Abstract]        
Consolidated Operating Lease Expense $ 1,190 $ 1,121 $ 3,532 $ 3,329
Consolidated Financing Lease Amortization 60   159  
Consolidated Financing Lease Interest 10   23  
Consolidated Financing Lease Expense 70   182  
Sublease Income 0   (160)  
Net Lease Cost $ 1,260   $ 3,554