Borrowings (Tables)

3 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Components of Debt

The below table presents the components of the carrying value of the 2028 Notes as of December 31, 2023:

($ in millions)
Principal	$	350.0
Unamortized financing costs	(4.2)
Unaccreted discount	(1.7)
Interest rate swap fair value adjustment	10.6
Net carrying value	$	354.7
Fair Value	$	369.2

The below table presents the components of interest and other debt expenses related to the 2028 Notes for the three months ended December 31, 2023:

($ in millions)
Coupon interest	$	3.8
Amortization of financing costs and discount	0.1
Effect of interest rate swap	0.6
Total interest expense	$	4.5
Coupon interest rate (net of effect of interest rate swaps)	9.450		%