Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 04, 2020
Entity Listings [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-35469
Entity Registrant Name	VOCERA COMMUNICATIONS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3354663
Entity Address, Address Line One	525 Race Street
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95126
City Area Code	408
Local Phone Number	882-5100
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		32,378,449
Entity Central Index Key	0001129260
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
New York Stock Exchange
Entity Listings [Line Items]
Title of 12(b) Security	Common Stock, $0.0003 par value
Trading Symbol	VCRA
Security Exchange Name	NYSE