Related Party Transactions - Transactions with the Relief Fund (Details) - Related Party - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Related Party Transaction [Line Items]
Remaining expense related to charitable contributions		$ 6.7		$ 6.4
Accounts payable and accrued liabilities
Related Party Transaction [Line Items]
Remaining liability associated with charitable contributions		$ 15.6	$ 9.2
Other expenses
Related Party Transaction [Line Items]
Charitable contributions	$ 40.0