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Hurricane Michael (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
May 01, 2019
Mar. 31, 2019
Dec. 31, 2018
Loss contingency      
Insurance proceeds   $ 279  
Proceeds from settlement received   5,798  
Hurricane Michael.      
Loss contingency      
Insurance proceeds   300  
Insurance settlements receivable   900 $ 6,700
Additional hurricane expense   300  
Insurance recovery for additional hurricane expense   0  
Proceeds from business interruption insurance   0  
Proceeds from settlement received   $ 5,800  
Hurricane Michael. | Subsequent Event.      
Loss contingency      
Proceeds from settlement received $ 900