Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 01, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	EVBG
Entity Registrant Name	EVERBRIDGE, INC.
Entity Central Index Key	0001437352
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		33,563,285
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-37874
Entity Tax Identification Number	262919312
Entity Address, Address Line One	25 Corporate Drive
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Burlington
Entity Address, State or Province	Massachusetts
Entity Address, Postal Zip Code	01803
City Area Code	818
Local Phone Number	230-9700