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Recently Issued Accounting Standards (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Right of use assets $ 20,899  
Lease liabilities $ 21,247  
Adjustment | ASU 2016-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Right of use assets   $ 20,618
Lease liabilities   $ 20,856