Income Taxes - Additional Information (Detail) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2007 |
|
| CALIFORNIA | ||
| Income Tax [Line Items] | ||
| Net operating loss carryforwards | $ 75.2 | |
| Federal Income Tax | ||
| Income Tax [Line Items] | ||
| Net operating loss carryforwards | $ 193.3 | $ 156.5 |
| Net operating loss carryforwards expiration year | 2037 | |
| Net operating loss carryforwards having indefinite life | $ 191.9 | |
| State Income Tax | ||
| Income Tax [Line Items] | ||
| Net operating loss carryforwards | $ 21.7 | |
| Net operating loss carryforwards expiration year | 2034 |