Note 11 - Fair Value Measurements - Fair Value Measurements of Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Total Assets	$ 3.4	$ 3.0
Total Liabilities	17.5	27.3
Contingent consideration		1.8
Fair Value, Inputs, Level 1 [Member]
Total Assets	0.0	0.0
Total Liabilities	0.0	0.0
Contingent consideration		0.0
Fair Value, Inputs, Level 2 [Member]
Total Assets	3.4	3.0
Total Liabilities	17.5	25.5
Contingent consideration		0.0
Fair Value, Inputs, Level 3 [Member]
Total Assets	0.0	0.0
Total Liabilities	0.0	1.8
Contingent consideration		1.8
Foreign Exchange Forward [Member]
Foreign currency contracts, asset	3.4	3.0
Foreign currency contracts, liability	17.5	25.5
Foreign Exchange Forward [Member] | Fair Value, Inputs, Level 1 [Member]
Foreign currency contracts, asset	0.0	0.0
Foreign currency contracts, liability	0.0	0.0
Foreign Exchange Forward [Member] | Fair Value, Inputs, Level 2 [Member]
Foreign currency contracts, asset	3.4	3.0
Foreign currency contracts, liability	17.5	25.5
Foreign Exchange Forward [Member] | Fair Value, Inputs, Level 3 [Member]
Foreign currency contracts, asset	0.0	0.0
Foreign currency contracts, liability	$ 0.0	$ 0.0