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Recent Accounting Pronouncements - Additional Information (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Right-of-use assets $ 1,002  
Operating lease, liabilities $ 1,022  
Accounting Standards Update 2016-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Right-of-use assets   $ 200
Operating lease, liabilities   $ 200