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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Income before income taxes for U.S. operations $ 130.9 $ 182.6 $ 271.1
Income (loss) before income taxes for foreign operations (0.9) 13.3 45.1
Net operating loss carryforwards - domestic 3.2    
Remaining state loss carryforwards 4.5    
Net operating loss carryforwards - foreign 7.7    
Undistributed earnings of foreign subsidiaries 100.1    
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 53.6 32.4  
AMP Tax Credits Sold 45.0    
AMP Tax Credits, Deferred Tax Assets 8.0 $ 9.8  
Other Noncurrent Assets      
Tax Credit Carryforward [Line Items]      
AMP Tax Credits, Deferred Tax Assets 14.6    
Cost of Sales      
Tax Credit Carryforward [Line Items]      
AMP Tax Credits for Wind Towers $ 2.7