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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]      
Income before income taxes for U.S. operations $ 236.0 $ 130.9 $ 182.6
Income (loss) before income taxes for foreign operations 5.3 (0.9) 13.3
Net operating loss carryforwards - domestic 10.3    
Remaining state loss carryforwards 5.0    
Net operating loss carryforwards - foreign 10.5    
Total accrued interest and penalties related to uncertain tax positions 0.0 0.0 0.0
Tax Credit Carryforward [Line Items]      
AMP Tax Credits for Wind Towers 72.8 53.6 $ 32.4
AMP Tax Credits, Deferred Tax Assets 3.8    
Other Noncurrent Assets      
Tax Credit Carryforward [Line Items]      
AMP Tax Credits, Deferred Tax Assets 11.1    
2025 AMP Tax Credits      
Tax Credit Carryforward [Line Items]      
AMP Tax Credits Sold 67.1    
2024 AMP Tax Credits      
Tax Credit Carryforward [Line Items]      
AMP Tax Credits Sold 8.3 45.0  
Cost of Sales      
Tax Credit Carryforward [Line Items]      
AMP Tax Credits for Wind Towers $ 5.1 $ 2.7