Income Taxes (Income Tax Rate Reconciliation) (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective income tax rate continuing operations tax rate reconciliation [Abstract]
Federal income tax computed at the statutory rate	21.00%	21.00%	21.00%
Increase (reduction) in taxes resulting from: [Abstract]
Change in valuation allowance	(9.40%)	(20.60%)	(20.30%)
Deferred inventory adjustments	(9.30%)	0.00%	0.00%
Excessive Remuneration Sec. 162(m)	(1.70%)	(0.40%)	(0.30%)
Other	(1.10%)	0.00%	(0.40%)
Effective tax rate	(0.50%)	0.00%	0.00%