Note 11 - Derivatives - Effect of Derivative Instruments on Consolidated Statements of Earnings (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net sales		$ 1,090.8	$ 1,001.0	$ 1,137.6
Interest expense, net		(7.3)	(17.4)	(17.8)
Net foreign currency transaction loss		(0.7)	(5.3)
Net gain (loss) recognized in other comprehensive (loss) income, net of tax(a)		(0.5)	2.2	3.5
Net loss reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net sales		1,090.8	1,001.0	1,137.6
Foreign Exchange Option [Member]
Net gain (loss) recognized in earnings(b)	[1]	0.0	0.0	0.0
Foreign Exchange Option [Member] | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member]
Net gain (loss) recognized in other comprehensive (loss) income, net of tax(a)	[2]	0.0	(0.1)	(0.3)
Foreign Exchange Option [Member] | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Net sales		0.0	0.0	0.0
Net foreign currency transaction loss		0.0	0.0	0.0
Net loss reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net sales		0.0	0.0	0.0
Net gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to interest income		0.0	0.0	0.0
Foreign Exchange Forward [Member]
Net gain (loss) recognized in earnings(b)	[1]	2.5	(5.0)	(1.3)
Foreign Exchange Forward [Member] | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member]
Net gain (loss) recognized in other comprehensive (loss) income, net of tax(a)	[2]	10.8	(7.4)	8.6
Foreign Exchange Forward [Member] | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Net sales		(0.3)	(0.1)	0.0
Net foreign currency transaction loss		9.7	(11.6)	2.6
Net loss reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net sales		(0.3)	(0.1)	0.0
Net gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to interest income		1.9	2.0	$ 2.2
Sales [Member]
Amount of gain (loss) on cash flow hedge activity		(0.4)	(0.2)
Interest Income [Member]
Amount of gain (loss) on cash flow hedge activity		2.4	2.7
Foreign Currency Gain (Loss) [Member]
Amount of gain (loss) on cash flow hedge activity		$ 12.7	$ (15.0)

[1] Classified in net foreign currency transaction losses.

[2] Net change in the fair value of the effective portion classified in other comprehensive (loss) income.