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Note 13 - Income Taxes - Summary of Deferred Tax Assets (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Employee wages and other benefits | $ 49.9 | $ 54.9
Lease liabilities | 55.4 | 53.3
Net operating loss carryover | 9.4 | 12.0
Interest expense | 31.0 | 31.1
Book/tax energy basis difference | 0.0 | 112.2
Other | 17.1 | 22.0
Total | 162.8 | 285.5
Less valuation allowance | (5.6) | (45.3)
Deferred tax assets | 157.2 | 240.2
Right of use assets | (48.3) | (44.1)
Fixed assets and intangible assets | (194.1) | (223.9)
Commissions | (18.2) | (16.8)
Pensions | (57.0) | (56.5)
Other | (18.9) | (12.8)
Deferred tax liabilities | (336.5) | (354.1)
Deferred tax liabilities, net | $ (179.3) | $ (113.9)

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