XML 51 R50.htm IDEA: XBRL DOCUMENT v3.19.3
Property, Plant and Equipment - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Property, Plant and Equipment [Abstract]        
Depreciation $ 16,300,000 $ 16,800,000 $ 49,200,000 $ 50,800,000
Impairment charges and loss on sale $ (100,000) $ 0 $ 1,800,000 $ 500,000