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Underwriting, Acquisition and Insurance Expenses
 6 Months Ended
Jun. 30, 2022
Underwriting, Acquisition and Insurance Expenses [Abstract]  
Underwriting, Acquisition and Insurance Expenses Underwriting, Acquisition and Insurance Expenses
Underwriting, acquisition and insurance expenses were as follows:
For the Three Months Ended
June 30,		For the Six Months Ended
June 30,
(in millions)2022202120222021
Commissions$61.3 $71.7 $139.2 $148.2 
Other underwriting and insurance expenses97.1 104.0 200.3 210.6 
Total underwriting, acquisition and insurance expenses before deferral158.4 175.7 339.5 358.8 
Net deferral of policy acquisition costs2.6 1.6 (5.6)(5.1)
Total underwriting, acquisition and insurance expenses$161.0 $177.3 $333.9 $353.7