Net Loss Per Common Share - Additional Information (Details) - shares shares in Millions	3 Months Ended		6 Months Ended	9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Jun. 30, 2024
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common stock not included in the calculation of potentially diluted shares	17.1	17.1		17.1	17.1
3.75% Convertible Notes Due 2026
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Interest rate (as a percent)	3.75%			3.75%		3.75%
3.75% Convertible Notes Due June 2026
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Interest rate (as a percent)	3.75%	3.75%	3.75%	3.75%	3.75%
Convertible debt maturity period	2026	2026	2026	2026	2026