CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,063.1	$ 1,029.0	$ 946.9
Cost of sales	688.8	672.1	621.2
Gross profit	374.3	356.9	325.7
Selling, distribution and administrative expenses	286.3	272.8	260.4
Special gains	0.0	0.0	(0.8)
Operating income from continuing operations	88.0	84.1	66.1
Foreign currency exchange loss	0.3	0.0	0.0
Interest and other expense	0.1	0.1	0.0
Income from continuing operations before income taxes	87.6	84.0	66.1
Provision for income taxes	17.5	19.9	16.1
Net income from continuing operations	70.1	64.1	50.0
Income (loss) from discontinued operations, net of tax	33.2	1.3	(1.5)
Net income	$ 103.3	$ 65.4	$ 48.5
Net income per common share from continuing operations:
Net income per share from continuing operations-basic (in dollars per share)	$ 1.85	$ 1.69	$ 1.33
Net income per share from continuing operations-diluted (in dollars per share)	1.84	1.68	1.32
Net income (loss) per common share from discontinued operations:
Net income (loss) per common share from discontinued operations- basic (in dollars per share)	0.88	0.03	(0.04)
Net income (loss) per common share from discontinued operations-diluted (in dollars per share)	0.87	0.03	(0.04)
Net Income (Loss) Per Common Share
Net income (loss) per common share - basic (in dollars per share)	2.73	1.72	1.29
Net income (loss) per common share - diluted (in dollars per share)	$ 2.71	$ 1.71	$ 1.28
Weighted average common and common equivalent shares:
Weighted average shares outstanding for basic net income per share (shares)	37.8	37.5	37.5
Weighted average shares outstanding for diluted net income per share (shares)	38.0	37.7	37.7
Dividends declared (in dollars per share)	$ 1.64	$ 3.56	$ 0.48