Nature of Business (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator for income (loss) per common share calculation:
Net income (loss) attributable to Hemisphere Media Group, Inc.	$ 5,297	$ (3,169)	$ (10,813)	$ (7,213)
Denominator for income (loss) per common share calculation:
Weighted-average common shares, basic	39,489	39,209	39,415	39,135
Effect of dilutive securities
Stock options and restricted stock	36
Weighted-average common shares, diluted	39,525	39,209	39,415	39,135
Income (loss) per share attributable to Hemisphere Media Group, Inc.
Basic (in dollars per share)	$ 0.13	$ (0.08)	$ (0.27)	$ (0.18)
Diluted (in dollars per share)	$ 0.13	$ (0.08)	$ (0.27)	$ (0.18)
Shares excluded from the computation of diluted income (loss) per common share	3,900	1,700	3,100	1,200
Outstanding awards excluded from computation of diluted loss per share		300	200	300
Snap Media
Nature of business
Ownership Percentage	75.00%		75.00%