Summary of Significant Accounting Policies - Note Purchase Agreement (Details) - USD ($) $ in Millions		1 Months Ended
	Jun. 23, 2023	Oct. 31, 2021	Oct. 04, 2021
Debt Instrument [Line Items]
Debt instrument, term	6 years
Oberland Capital
Debt Instrument [Line Items]
Note purchase agreement, value	$ 300	$ 300	$ 75
Note purchase agreement, amount available for funding at the option of the company		75
Note purchase agreement, amount available for funding at the option of the company and counterparty	$ 100	$ 100
Oberland Capital | Senior Notes
Debt Instrument [Line Items]
Debt instrument, term		6 years