Revenue from Contract with Customer (Details)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	100.00%	100.00%
Products transferred at a point in time
Disaggregation of Revenue [Line Items]
Net sales	35.00%	41.00%
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Net sales	65.00%	59.00%