v3.25.1
Note 13 - Accumulated Other Comprehensive Loss - Schedule of Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Total other comprehensive loss, pre tax $ 59.8 $ (48.0)
Total other comprehensive loss, tax 2.1 2.8
Total other comprehensive loss, net 61.9 (45.2)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]    
Total other comprehensive loss, pre tax 58.8 (26.4)
Total other comprehensive loss, tax 2.1 2.8
Total other comprehensive loss, net 60.9 (23.6)
Reclassification to Net Income [Member]    
Total other comprehensive loss, pre tax [1] 1.0 (21.6)
Total other comprehensive loss, tax [1] 0.0 0.0
Total other comprehensive loss, net [1] $ 1.0 $ (21.6)
[1] Reclassifications to net income are primarily related to the release of accumulated foreign currency translation reserves during the period in which a JHG entity liquidated.