Acquisitions - Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue
As reported	$ 457.7	$ 417.5
Income from continuing operations
As reported	$ 29.0	$ 19.7
As reported
Basic earnings per share from continuing operations (in dollars per share)	$ 0.91	$ 0.62
Diluted earnings per share from continuing operations (in dollars per share)	$ 0.90	$ 0.62
Proseal
Revenue
Pro forma	$ 457.7	$ 439.6
Income from continuing operations
Pro forma	$ 29.0	$ 20.8
Pro forma
Basic (in dollars per share)	$ 0.91	$ 0.65
Fully diluted (in dollars per share)	$ 0.90	$ 0.65