Cover - shares	6 Months Ended
	Jun. 30, 2022	Jul. 29, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-37725
Entity Registrant Name	ViewRay, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	42-1777485
Entity Address, Address Line One	2 Thermo Fisher Way
Entity Address, City or Town	Oakwood Village
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44146
City Area Code	440
Local Phone Number	703-3210
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	VRAY
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		181,009,565
Entity Central Index Key	0001597313
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022