Restructuring - Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	$ 2,126	$ 1,988	$ 2,126	$ 3,630
Operating Segments | Fluid & Metering Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			930
Operating Segments | Health & Science Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			330
Operating Segments | Fire & Safety/Diversified Products
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			819
Corporate/Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			47
Severance Costs
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			1,842
Severance Costs | Operating Segments | Fluid & Metering Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			930
Severance Costs | Operating Segments | Health & Science Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			46
Severance Costs | Operating Segments | Fire & Safety/Diversified Products
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			819
Severance Costs | Corporate/Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			47
Exit Costs
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			284
Exit Costs | Operating Segments | Fluid & Metering Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			0
Exit Costs | Operating Segments | Health & Science Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			284
Exit Costs | Operating Segments | Fire & Safety/Diversified Products
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			0
Exit Costs | Corporate/Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs			$ 0