Income Taxes (Details) - USD ($) $ in Thousands |
12 Months Ended | |
---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
Operating Loss Carryforwards [Line Items] | ||
Tax provision | $ 120 | $ 40 |
Valuation allowance related to net operating losses | 47,000 | 39,600 |
Accrued interest or penalties | 0 | 0 |
Federal | ||
Operating Loss Carryforwards [Line Items] | ||
Net operating loss ("NOL") carryforwards | 494,800 | 330,200 |
Net operating loss ("NOL") carryforwards, subject to expire | 73,700 | |
Net operating loss ("NOL") carryforwards, carried forward indefinitely | 421,100 | |
Federal and state tax credits | 9,200 | |
State | ||
Operating Loss Carryforwards [Line Items] | ||
Net operating loss ("NOL") carryforwards | 323,800 | $ 232,100 |
Federal and state tax credits | $ 1,800 |