Note 8 - Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Goodwill [Table Text Block]

				Accumulated
				Impairment
	Goodwill			Losses			Total
Balance as of December 31, 2021	$	233.9		$	(40.8	)	$	193.1
Divestiture		(1.7	)		—			(1.7	)
Foreign currency fluctuations		(13.9	)		0.9			(13.0	)
Balance as of December 31, 2020	$	249.5		$	(41.7	)	$	207.8
Foreign currency fluctuations		14.4			(1.7	)		12.7
Balance as of December 31, 2019	$	235.1		$	(40.0	)	$	195.1

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Customer			Trade
	Lists			Names			Technology			Total
Balance as of December 31, 2021
Original cost	$	155.4		$	30.3		$	17.0		$	202.7
Accumulated amortization		(80.0	)		(13.9	)		(10.8	)		(104.7	)
Carrying amount	$	75.4		$	16.4		$	6.2		$	98.0
Weighted-average original life (in years)		15			11			11
Balance as of December 31, 2020
Original cost	$	166.2		$	34.4		$	17.9		$	218.5
Accumulated amortization		(70.3	)		(12.3	)		(9.7	)		(92.3	)
Carrying amount	$	95.9		$	22.1		$	8.2		$	126.2
Weighted-average original life (in years)		15			11			11

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2022	$	16.9
2023		15.4
2024		13.9
2025		12.5
2026		11.1
Thereafter		28.2
Total	$	98.0