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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Schedule of Product Warranty Liability
Warranty liabilities are included in Other current liabilities and Other long-term liabilities in the consolidated balance sheets. Changes in our warranty liability were as follows (in millions):
202420232022
January 1$8.4 $10.6 $12.7 
Provision for warranty6.1 9.3 8.8 
Actual warranty costs(7.4)(11.5)(10.9)
December 31$7.1 $8.4 $10.6 
Schedule of Weighted Average Number of Shares
The weighted average number of common shares outstanding used to calculate Basic and diluted loss per share, and the anti-dilutive shares that are excluded from the Diluted loss per share calculation are as follows (in thousands):
 Year Ended December 31,
 202420232022
Basic weighted average shares common outstanding28,214 29,209 29,785 
Effect of potentially dilutive stock options, restricted   
   stock and performance stock awards— — — 
Diluted weighted average common shares outstanding28,214 29,209 29,785 
Anti-dilutive shares226 212 325 
Accounts Receivable, Allowance for Credit Loss
Changes in our allowance for credit losses were as follows (in millions):

December 31,202420232022
Beginning balance$14.9 $15.0 $15.1 
Provision for expected credit losses(0.6)0.5 1.7 
Write-offs charged against the allowance(5.1)(0.6)(1.8)
Ending balance$9.2 $14.9 $15.0