XML 32 R22.htm IDEA: XBRL DOCUMENT v3.25.1
Accumulated Other Comprehensive Loss (Notes)
 3 Months Ended
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss, net of tax, is comprised of the following:
Pension Plan AdjustmentsOther Post Retirement Employee Benefit Plan AdjustmentsTotal
Balance at December 31, 2023$(42.0)$11.3 $(30.7)
Amounts reclassified from accumulated other comprehensive loss— (0.1)— 
Balance at March 31, 2024$(41.9)$11.2 $(30.7)
Balance at December 31, 2024$(47.8)$13.4 $(34.5)
Amounts reclassified from accumulated other comprehensive loss0.1 (0.1)— 
Balance at March 31, 2025$(47.7)$13.2 $(34.5)