XML 63 R49.htm IDEA: XBRL DOCUMENT v3.19.2
Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Mar. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Mar. 31, 2019
Property, Plant and Equipment [Line Items]          
Proceeds from sale of assets     $ 260 $ 1,755  
Buildings and improvements          
Property, Plant and Equipment [Line Items]          
Proceeds from sale of assets $ 200 $ 800      
Assets held-for-sale, net book value       $ 4,500 $ 1,100