Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 37,628	$ 37,628
Finite-lived intangible assets, accumulated amortization	(34,161)	(33,047)
Total finite-lived intangible assets, net	3,467	4,581
Supplier agreements
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	37,525	37,525
Finite-lived intangible assets, accumulated amortization	(34,058)	(32,944)
Capitalized development costs
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	103	103
Finite-lived intangible assets, accumulated amortization	$ (103)	$ (103)