Fair Value Measurements - Other Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value Measurements
Outstanding borrowings	$ 1,235,354	$ 1,233,334
ABS 2028
Fair Value Measurements
Estimated fair value of notes	207,257	197,767
2028 Notes
Fair Value Measurements
Outstanding borrowings	197,881	197,767
2022 ABS
Fair Value Measurements
Estimated fair value of notes	294,707	299,866
Outstanding borrowings	301,798	300,810
2023 ABS
Fair Value Measurements
Estimated fair value of notes	189,417	187,345
Outstanding borrowings	$ 184,019	$ 183,840