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Divestiture (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Divestiture Transactions [Abstract]        
Outside professional fees related to anticipated divestiture       $ 700
Proceeds from the sale of facility and related business lines $ 12,457 $ 0 $ 12,457 0
Corporate & Other [Member]        
Divestiture Transactions [Abstract]        
Non-cash loss on assets held for sale     $ 11,600  
Selling, General and Administrative Expenses [Member]        
Divestiture Transactions [Abstract]        
Impairment charges       $ 10,800