Note 15 - Leases - Lease Assets and Liabilities (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Operating Lease Assets		$ 44.5	$ 46.6
Finance lease assets	[1]	0.1	0.3
Total leased assets		44.6	46.9
Finance liabilities, current		0.1	0.2
Long-Term Operating Lease Liability		28.7	30.3
Finance liabilities, noncurrent		0.0	0.0
Total lease liabilities		45.1	47.2
Other Current Liabilities [Member]
Operating leases		$ 16.3	$ 16.7

[1] Finance lease assets are recorded net of accumulated amortization of $0.2 million and $0.5 million as of December 31, 2020 and December 31, 2019, respectively.