Mezzanine and Stockholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Class of Stock [Line Items]
Holdback shares not issued to former shareholders (in shares)			41,048
Treasury shares (in shares)	10,569,340		10,569,340		10,299,259
Treasury stock repurchased (in shares)			270,081
APC
Class of Stock [Line Items]
Treasury shares (in shares)	10,299,259		10,299,259		10,299,259
Dividends paid	$ 0.0	$ 0.0	$ 0.0	$ 10.0
CDSC
Class of Stock [Line Items]
Dividends paid	$ 1.3	$ 0.0	$ 1.3	$ 2.9