Commitments and Contingencies Asbestos Claimant and Settlement (Details) - Asbestos [Member]	9 Months Ended	12 Months Ended
	Sep. 30, 2019 USD ($) claimants	Dec. 31, 2018 USD ($) claimants	Dec. 31, 2017 claimants
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	4,778	4,820	5,256
Loss Contingency, New Claims Filed, Number	100	171
Loss Contingency, Claims Dismissed, Number	127	564
Loss Contingency, Claims Settled, Number	15	43
Average settlement amount per claim during period | $	$ 23,933	$ 7,191
Total defense costs during period | $	$ 1,714,530	$ 2,260,000