Fair Value Measurements - Carrying Values and Fair Values of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value Measurements
Carrying Value	$ 1,864,938	$ 1,233,334
Fair Value	1,865,500	1,235,895
Revolving Credit Facility
Fair Value Measurements
Carrying Value	251,319	253,579
Fair Value	251,319	253,579
SPV Credit Facility
Fair Value Measurements
Carrying Value	308,380	178,098
Fair Value	308,380	178,098
SPV II Credit Facility
Fair Value Measurements
Carrying Value	212,325	119,240
Fair Value	212,325	119,240
SPV III Credit Facility
Fair Value Measurements
Carrying Value	58,624	0
Fair Value	58,624	0
SPV IV Credit Facility
Fair Value Measurements
Carrying Value	145,800	0
Fair Value	145,800	0
2022 ABS
Fair Value Measurements
Carrying Value	303,786	300,810
Fair Value	296,767	299,866
2023 ABS
Fair Value Measurements
Carrying Value	184,377	183,840
Fair Value	186,629	187,345
2028 Notes
Fair Value Measurements
Carrying Value	198,059	197,767
Fair Value	203,388	197,767
2029 Notes
Fair Value Measurements
Carrying Value	202,268	0
Fair Value	$ 202,268	$ 0