XML 9 R4.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Statement of Comprehensive Income [Abstract]    
Amortization of prior service benefits included in net income, tax $ (0.1) $ (0.1)
Amortization of net actuarial gain included in net income, tax $ (0.2) $ (0.2)