Financing Arrangement - Outstanding Financing Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 06, 2023	Mar. 31, 2023
Debt Instrument [Line Items]
Average outstanding	8.47%			8.31%
Barclays Facility | Line of Credit
Debt Instrument [Line Items]
Amount Outstanding	$ 400,000	$ 400,000
Amount Available	$ 100,000	$ 100,000
Barclays Facility | Line of Credit | Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	3.00%	3.00%
Debt instrument, variable rate floor	0.00%	0.00%
Average outstanding	3.00%	3.00%	3.00%