Note 5 - Leases - Lease Cost and Other Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Operating lease cost	[1]	$ 9.0	$ 13.3
Sublease income		(0.4)	(0.5)
Depreciation of finance lease assets	[2]	3.7	3.3
Interest on finance lease liabilities	[3]	0.1	0.2
Total lease cost		12.4	16.3
Operating cash outflows from operating leases		(9.0)	(12.9)
Operating cash outflows from finance leases		(0.1)	(0.2)
Financing cash outflows from finance leases		$ (1.6)	$ (2.4)

[1] Included in "Cost of revenues" and "Selling, general and administrative" expenses in our accompanying condensed consolidated statements of operations

[2] Included in "Depreciation and amortization of fixed assets" in our accompanying condensed consolidated statements of operations

[3] Included in "Interest expense" in our accompanying condensed consolidated statements of operations