Costs Associated with Exit and Restructuring Activities Costs Associated with Exit and Restructuring Activities - June 2016 Plan (Details) - June 2016 Plan - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Jun. 03, 2016
Restructuring Cost and Reserve [Line Items]
Actual costs incurred	$ 10,262
Total restructuring, impairment and restructuring related charges
Restructuring Reserve	333	$ 668
Operating Earnings
Restructuring Cost and Reserve [Line Items]
Planned Costs			$ 13,400
Actual costs incurred	15,660
Equipment relocation
Restructuring Cost and Reserve [Line Items]
Planned Costs			9,025
Other charges
Restructuring Cost and Reserve [Line Items]
Planned Costs			1,300
Other charges | Operating Earnings
Restructuring Cost and Reserve [Line Items]
Actual costs incurred	2,088
Workforce reduction
Restructuring Cost and Reserve [Line Items]
Planned Costs			$ 3,075
Workforce reduction | Operating Earnings
Restructuring Cost and Reserve [Line Items]
Actual costs incurred	$ 3,310