Liabilities - Revolving Credit Facility (Details) - USD ($) $ in Millions		9 Months Ended	12 Months Ended
	Dec. 16, 2021	Sep. 30, 2023	Dec. 31, 2022
Credit Facility
Debt
Borrowing capacity	$ 150
Debt instrument term	5 years
Additional increase in borrowing subject to certain conditions	$ 75
Outstanding amount		$ 0	$ 0
Credit Facility | Minimum
Debt
Unused commitment fee percentage (as a percent)	0.25%
Interest coverage ratio	3.00
Credit Facility | Maximum
Debt
Unused commitment fee percentage (as a percent)	0.35%
Total net leverage ratio	4.50
Secured net leverage ratio	2.50
Credit Facility | Base Rate [Member] | Minimum
Debt
Basis spread on base rate (as a percent)	0.50%
Credit Facility | Base Rate [Member] | Maximum
Debt
Basis spread on base rate (as a percent)	1.25%
Credit Facility | SOFR
Debt
Floor rate on debt instrument (as a percent)	0.00%
Credit Facility | SOFR | Minimum
Debt
Basis spread on base rate (as a percent)	1.50%
Credit Facility | SOFR | Maximum
Debt
Basis spread on base rate (as a percent)	2.25%
Credit Facility, Letter of Credit
Debt
Borrowing capacity	$ 15