Shared-Based Compensation - Restricted Stock Award Rollforward (Detail) - Restricted stock shares in Thousands	6 Months Ended
	Jun. 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	3,381
Nonvested restricted shares, vested (in shares) | shares	(849)
Nonvested restricted shares, forfeited (in shares) | shares	(123)
Nonvested restricted shares, ending balance (in shares) | shares	3,447
Weighted Average Grant Date Fair Value [Abstract]
Beginning balance (in dollars per share) | $ / shares	$ 4.03
Granted (in dollars per share) | $ / shares	1.17
Vested (in dollars per share) | $ / shares	4.15
Forfeited (in dollars per share) | $ / shares	1.56
Ending balance (in dollars per share) | $ / shares	$ 1.28