Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ (474,152)	$ (425,043)
Gross unrecognized tax benefits	18,200	18,100
Penalties and interest accrued	200	100
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	790,800	802,200
Operating loss carryforwards, indefinite lived	799,300	659,700
State | Capital loss carryforward
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	2,100	2,100
Federal and state
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards valuation allowance	421,600	372,500
Tax credit valuation allowance	50,400	50,400
Federal and state | Capital loss carryforward
Operating Loss Carryforwards [Line Items]
Tax credit valuation allowance	$ 2,100	$ 2,100