EQUITY INCENTIVE PLAN - Summary of Stock Option Activity (Details) - Hyperfine Plan	3 Months Ended
	Mar. 31, 2024 shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Number of Options, Beginning balance	14,271,587
Number of Options, Granted	4,461,083	[1]
Number of Options, Exercised	(70,670)
Number of Options, Forfeited / Cancelled / Expired	(181,006)
Number of Options, Ending balance	18,480,994

[1] Includes employee new hire grants of stock options to purchase 91,100 shares of the Company's Class A common stock. Also includes annual employee grants of stock options and special employee grants of stock options to purchase 1,934,983 shares of the Company's Class A common stock, and grants to executive officers of stock options to purchase 2,435,000 shares of the Company's Class A common stock. The grants will vest 25% on the first anniversary date of the grant with the remainder vesting equally over the remaining 36 months, subject to the employee’s continued service to the Company through the applicable vesting dates.