Income Tax - Reconciliation of Income Tax Benefit (Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Taxes
Expected tax benefit (expense) at federal statutory rate	$ (30,192)	$ (12,177)
Changes in valuation allowances	284,927	12,267
Federal prior year adjustments		1,673
Fines & penalties		(1,939)
State income tax benefit (expense), net of federal benefit	(2,430)	(1,859)
State rate change, net of federal benefit	(2,541)	1,532
State prior year adjustment	(380)	(234)
Other	(405)	626
Total income tax benefit (expense)	$ 248,979	$ (111)