Note 5 - Leases - Lease Cost and Other Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Operating lease cost	[1]	$ 8.5	$ 9.0
Sublease income		(1.0)	(0.4)
Depreciation of finance lease assets	[2]	4.4	3.7
Interest on finance lease liabilities	[3]	0.5	0.1
Total lease cost		12.4	12.4
Operating cash outflows from operating leases		(8.9)	(9.0)
Operating cash outflows from finance leases		(0.5)	(0.1)
Financing cash outflows from finance leases		$ (2.8)	$ (1.6)

[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