Restructuring - Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	$ 4,621	$ 0	$ 8,251	$ 4,797
Corporate/Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	618		1,213
Fluid & Metering Technologies | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	827		1,313
Health & Science Technologies | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	3,116		5,298
Fire & Safety/Diversified Products | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	60		427
Severance Costs
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	4,438		7,750
Severance Costs | Corporate/Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	618		1,213
Severance Costs | Fluid & Metering Technologies | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	809		1,160
Severance Costs | Health & Science Technologies | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	2,951		4,950
Severance Costs | Fire & Safety/Diversified Products | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	60		427
Exit Costs
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	183		501
Exit Costs | Corporate/Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	0		0
Exit Costs | Fluid & Metering Technologies | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	18		153
Exit Costs | Health & Science Technologies | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	165		348
Exit Costs | Fire & Safety/Diversified Products | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	$ 0		$ 0