Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2023

Class of Stock Disclosures [Abstract]

Summary of Repurchases of Common Stock

Repurchases of Common Stock were as follows (in millions, except share amounts):

	Year Ended December 31,				(transition period) Three Months Ended December 31,		Year Ended September 30,
	2023		2022		2021		2021
Shares of Common Stock repurchased		265,795		1,508,467		1,362,831		927,934
Cost of shares of Common Stock repurchased	$	22.5	$	155.0	$	150.0	$	107.8