Acquisitions - (Fair Value of Identifiable Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions	Jan. 31, 2021	Jan. 31, 2020	Dec. 31, 2019
Instrumentation & Sampling (I&S)
Assets Acquired
Total current assets		$ 21.0
Property, plant and equipment		11.0
Other assets		6.0
Intangible assets		52.5
Goodwill		106.0
Total assets acquired		196.5
Liabilities Assumed
Total current liabilities		8.1
Other liabilities		19.2
Total assumed liabilities		$ 27.3
Net assets acquired	$ 169.2
Cummins-Allison
Assets Acquired
Total current assets			$ 91.6
Property, plant and equipment			26.3
Other assets			9.1
Intangible assets			66.0
Goodwill			60.3
Total assets acquired			253.3
Liabilities Assumed
Total current liabilities			71.6
Other liabilities			25.3
Total assumed liabilities			96.9
Net assets acquired			$ 156.4