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Derivatives and Hedging - Narrative (Details) - USD ($)
$ in Thousands
Nov. 08, 2018
Jan. 08, 2018
2021 Swap 1    
Derivative [Line Items]    
Notional amount   $ 144
Fixed interest rate 0.74% 0.74%
2021 Swap 2    
Derivative [Line Items]    
Notional amount $ 216