Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Mar. 11, 2021	Jun. 30, 2020
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2020
Entity File Number	001-35886
Entity Registrant Name	Hemisphere Media Group, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	80-0885255
Entity Address, Address Line One	4000 Ponce de Leon Blvd., Suite 650
Entity Address, City or Town	Coral Gables
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33146
City Area Code	305
Local Phone Number	421-6364
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001567345
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
ICFR Auditor Attestation Flag	true
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Trading Symbol	HMTV
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Entity Public Float			$ 177,066,202
Common Class A
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		20,143,881
Common Class B
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		19,720,381