Nature of Business and Significant Accounting Policies (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) segment $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Jul. 15, 2021	Nov. 26, 2018
Nature of business
Number of operating segments | segment		1
Numerator for income (loss) per common share calculation:
Net income (loss) attributable to Hemisphere Media Group, Inc. | $		$ 11,063	$ (1,235)
Net income (loss) available for common shareholders - basic | $		11,063	(1,235)
Net income (loss) available for common shareholders - diluted | $		$ 11,063	$ (1,235)
Denominator for income (loss) per common share calculation:
Weighted-average common shares, basic		39,612	39,434
Effect of dilutive securities
Stock options, restricted stock and warrants		322
Weighted-average common shares, diluted		39,934	39,434
Income (loss) per share attributable to Hemisphere Media Group, Inc.
Basic | $ / shares		$ 0.28	$ (0.03)
Diluted | $ / shares		$ 0.28	$ (0.03)
Shares excluded from the computation of diluted income (loss) per common share		2,500	3,300
Outstanding common stock awards excluded from computation of diluted loss per share			100
Snap Global. LLC
Nature of business
Equity interest acquired (as a percent)					75.00%
Percentage of minority interest relinquished				25.00%
PANTAYA
Nature of business
Equity interest acquired (as a percent)	75.00%	75.00%
Equity interest owned prior to transaction (in percent)	25.00%	25.00%
Total cash consideration | $	$ 123,605