Equity - Narrative (Detail) $ / shares in Units, $ in Millions					1 Months Ended					12 Months Ended
	Dec. 22, 2023 USD ($)	Dec. 19, 2023 $ / shares shares	Jan. 23, 2023 USD ($)	Jan. 18, 2023 $ / shares shares	Dec. 31, 2023 USD ($) vote shares	Oct. 31, 2023 shares	Aug. 31, 2023 USD ($)	Jun. 30, 2022 USD ($) shares	Sep. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares	Sep. 30, 2023 shares	Jun. 30, 2023 shares	Mar. 31, 2023 shares	Sep. 30, 2022 shares	Mar. 31, 2022 shares
Subsidiary, Sale of Stock [Line Items]
Common stock, shares authorized (in shares)					250,000,000			125,000,000		125,000,000	250,000,000	250,000,000	125,000,000	125,000,000	125,000,000
Common stock, number of votes (in votes per share) | vote					1
Common stock, shares issued (in shares)					192,772,000			73,551,000		82,923,000	107,022,000	106,454,000	106,370,000	82,880,000	71,438,000
Common stock, shares outstanding (in shares)					192,772,000			73,551,000		82,923,000	107,022,000	106,454,000	106,370,000	82,880,000	71,438,000
Preferred stock, shares authorized (in shares)					5,000,000			5,000,000		5,000,000	5,000,000	5,000,000	5,000,000	5,000,000	5,000,000
Preferred Stock, shares issued (in shares)					0			0		0	0	0	0	0	0
Preferred stock, shares outstanding (in shares)					0			0		0	0	0	0	0	0
Private Placement
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction (in shares)						2,300,000			2,300,000	10,700,000
Common stock price per share (in dollars per share) | $ / shares									$ 16.50
Proceeds from stock offering | $									$ 75.0	$ 56.2
Stock issuance costs | $										$ 54.2
Private Placement | Maximum
Subsidiary, Sale of Stock [Line Items]
Proceeds from stock offering | $								$ 75.0
Private Placement | Pre-funded warrants
Subsidiary, Sale of Stock [Line Items]
Number of securities called by warrants (in shares)									2,300,000
Warrant price per share (in dollars per share) | $ / shares									$ 16.49
Exercise price of warrants (in dollars per share) | $ / shares									$ 0.01
At The Market Offering
Subsidiary, Sale of Stock [Line Items]
Value of shares available for issue | $							$ 125.0
Overallotment Option
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction (in shares)		12,500,000		3,000,000.0
Exercisable period		30 days		30 days
December Underwriting Agreement
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction (in shares)		83,300,000			83,300,000
Common stock price per share (in dollars per share) | $ / shares		$ 1.50
Proceeds from stock offering | $	$ 118.1				$ 118.1
January Underwriting Agreement
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction (in shares)				20,000,000.0
Common stock price per share (in dollars per share) | $ / shares				$ 6.00
Proceeds from stock offering | $			$ 130.5