Note 10 - Derivatives - Effect of Derivative Instruments on Consolidated Statements of Earnings (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net sales		$ 280.2	$ 279.1	$ 538.3	$ 542.4
Interest expense, net		(1.2)	(2.1)	(1.5)	(6.0)
Net (loss) gain recognized in other comprehensive loss, net of tax(a)		0.8	(0.1)	0.6	(0.1)
Net loss reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net sales		280.2	279.1	538.3	542.4
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Net sales		280.2	279.1	538.3	542.4
Interest expense, net		(1.2)	(2.1)	(1.5)	(6.0)
Net foreign currency transaction (loss) gain		(1.0)	0.0	(0.4)	0.5
Net loss reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net sales		280.2	279.1	538.3	542.4
Net (loss) gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net foreign currency transaction gain		(1.0)	0.0	(0.4)	0.5
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Sales [Member]
Amount of gain (loss) on cash flow hedge activity		0.0	(0.2)	0.0	(0.3)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Income [Member]
Amount of gain (loss) on cash flow hedge activity		0.0	0.5	0.7	1.1
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Gain (Loss) [Member]
Amount of gain (loss) on cash flow hedge activity		0.2	(1.9)	4.7	5.4
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Interest expense, net		(1.2)	(2.1)	(1.5)	(6.0)
Net foreign currency transaction (loss) gain		(1.0)	0.0	(0.4)	0.5
Net (loss) gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net foreign currency transaction gain		(1.0)	0.0	(0.4)	0.5
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Interest Income [Member]
Amount of gain (loss) on cash flow hedge activity		0.4	0.0	0.4	0.0
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Foreign Currency Gain (Loss) [Member]
Amount of gain (loss) on cash flow hedge activity		4.3	0.0	4.3	0.0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member]
Interest expense, net		(1.2)	(2.1)	(1.5)	(6.0)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Interest Income [Member]
Amount of gain (loss) on cash flow hedge activity		0.3	0.0	0.3	0.0
Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member] | Cash Flow Hedging [Member]
Net sales		0.0	(0.2)	0.0	(0.2)
Net foreign currency transaction (loss) gain		0.1	(1.5)	3.6	4.1
Net (loss) gain recognized in other comprehensive loss, net of tax(a)	[1]	0.0	(1.3)	3.8	4.7
Net loss reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net sales		0.0	(0.2)	0.0	(0.2)
Net gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to interest expense, net		0.0	0.5	0.5	0.9
Net (loss) gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net foreign currency transaction gain		0.1	(1.5)	3.6	4.1
Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member] | Fair Value Hedging [Member]
Net foreign currency transaction (loss) gain		3.3	0.0	3.3	0.0
Net (loss) gain recognized in other comprehensive loss, net of tax(a)	[1]	4.7	0.0	4.7	0.0
Net gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to interest expense, net		0.3	0.0	0.3	0.0
Net (loss) gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to net foreign currency transaction gain		3.3	0.0	3.3	0.0
Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member] | Net Investment Hedging [Member]
Net gain reclassified from accumulated other comprehensive loss into income, net of tax, effective portion to interest expense, net		0.2	0.0	0.2	0.0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member]
Net gain (loss) recognized in income(b)	[2]	$ 4.2	$ (0.7)	$ 2.6	$ 1.4

[1] Net change in the fair value of the effective portion classified in other comprehensive loss.

[2] Classified in net foreign currency transaction (loss) gain.