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Income Taxes - Summary of Book Value and Tax Basis of Assets and Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets    
Net operating loss carryforwards $ 0.6 $ 1.0
Deferred compensation 0.3 0.6
Stock-based compensation 5.7 9.6
Fixed asset depreciation 1.5 0.2
Lease liabilities 2.4 3.2
Accrued expenses 0.2 0.2
Goodwill and intangible assets   8.6
Section 163(j) interest carryover 14.9 6.7
Other assets 0.9 0.6
Total deferred tax assets 26.5 30.7
Deferred tax liabilities    
Right-of-use lease assets (1.6) (2.1)
Goodwill and intangible assets (0.5)  
Total deferred tax liabilities (2.1) (2.1)
Valuation allowance (29.3) (31.7)
Deferred tax liabilities, net $ (4.9) $ (3.1)