Joint Venture - Summary of Financial Information of Joint Ventures (Operations Data) (Details) - USD ($) $ 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	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Schedule Of Equity Method Investments [Line Items]
Revenue	$ 113,243			$ 101,132			$ 330,962		$ 312,262
Gross profit	31,627			29,074			107,988		104,469
Net loss	$ (1,297)	$ 2,537	$ (3,954)	$ (6,342)	$ (9,621)	$ (2,969)	$ (2,714)		$ (18,932)
CNNC Accuray (Tianjin) Medical Technology Co. Ltd.
Schedule Of Equity Method Investments [Line Items]
Revenue		90,882			45,173			$ 146,298		$ 99,485
Gross profit		13,309			7,401			24,750		16,014
Net loss		4,687			2,091			7,812		2,098
Net income attributable to the Company		$ 2,297			$ 1,024			$ 3,829		$ 1,028