Acquisition - Schedule Of Net Sales And Pre Tax Net Income Loss Of Acquired Companies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Net sales	$ 1,106.6	$ 936.9	$ 1,038.1
Net (loss) earnings from continuing operations before income taxes	242.7	(126.7)	$ 299.4
Arktura Moz And Turf [Member]
Business Acquisition [Line Items]
Net sales	82.2	18.2
Net (loss) earnings from continuing operations before income taxes	$ (9.6)	$ 0.4