Shared-Based Compensation - Restricted Stock Award Rollforward (Detail) - Restricted stock shares in Thousands	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Nonvested Shares (in thousands)
Nonvested restricted shares, beginning balance (in shares) | shares	1,038
Nonvested restricted shares, granted (in shares) | shares	3,711
Nonvested restricted shares, vested (in shares) | shares	(1,130)
Nonvested restricted shares, forfeited (in shares) | shares	(160)
Nonvested restricted shares, ending balance (in shares) | shares	3,459
Weighted Average Grant Date Fair Value [Abstract]
Beginning balance (in dollars per share) | $ / shares	$ 4.03
Granted (in dollars per share) | $ / shares	1.37
Vested (in dollars per share) | $ / shares	3.65
Forfeited (in dollars per share) | $ / shares	1.51
Ending balance (in dollars per share) | $ / shares	$ 1.41