Non-controlling Interests - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Noncontrolling Interest [Line Items]
Equity-based compensation	$ 10,100	$ 13,000	$ 9,100
income tax expense (benefit)	$ 2,025	$ 4,476	$ 5,432
Funko Acquisition Holdings, L.L.C.
Noncontrolling Interest [Line Items]
Ownership percentage	69.50%	68.70%	50.20%
Equity-based compensation	$ 10,000	$ 10,800	$ 6,400
income tax expense (benefit)	$ (400)	$ 2,200	$ 3,600
Funko Acquisition Holdings, L.L.C. | Class A Common Stock
Noncontrolling Interest [Line Items]
Common stock, shares outstanding (in shares)	35.7	34.9	25.0