Loss Per Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Mar. 31, 2025	Mar. 31, 2024
Numerator:
Net loss	$ (134,588)	$ (103,975)	$ (19,663)	$ (48,194)	$ (13,535)	$ (10,376)	$ (258,226)	$ (72,105)
Denominator:
Basic weighted average shares outstanding (shares)	90,247			89,832			90,080	89,718
Diluted weighted average shares outstanding (shares)	90,247			89,832			90,080	89,718
Basic net loss per common share (USD per share)	$ (1.49)			$ (0.54)			$ (2.87)	$ (0.8)
Diluted net loss per common share (USD per share)	$ (1.49)			$ (0.54)			$ (2.87)	$ (0.8)