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Recent Accounting Pronouncements - Narrative (Details) - Accounting Standards Update 2016-01
$ in Thousands
Oct. 01, 2018
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Adoption of Accounting Standards Update (ASU) 2016-01 $ 0
Retained Earnings  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Adoption of Accounting Standards Update (ASU) 2016-01 $ 63