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Income Taxes - Reconciliation of effective income tax rate (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income taxes at statutory rate	0.00%	0.00%	0.00%
Income of taxed entity	0.50%	3.70%	2.60%
Federal Credits	1.00%	1.30%	0.80%
Share-based compensation	(1.50%)	(2.20%)	(2.40%)
Provision to return adjustment	(3.20%)	0.00%	0.00%
Change in valuation allowance	3.70%	(7.30%)	(1.40%)
Other	(0.10%)	(0.10%)	(0.20%)
Effective income tax rate	0.40%	(4.60%)	(0.60%)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions.

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