Stockholder's Equity - Schedule of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Funko Acquisition Holdings, L.L.C.
Funko, Inc. Stock Options
Stock Options, Outstanding (in shares)	228
Stock Options, Outstanding (in shares)	228	228
Stock Options, Options exercisable (in shares)	228
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 0.05
Weighted Average Exercise Price, Outstanding (in dollars per share)	0.05	$ 0.05
Weighted Average Exercise Options exercisable (in dollars per share)	$ 0.05
Aggregate Intrinsic Value, Outstanding	$ 2,437
Aggregate Intrinsic Value, Outstanding	4,278	$ 2,437
Aggregate Intrinsic Value, Options exercisable	$ 4,278
Remaining Contractual Life, Outstanding	1 year 4 months 28 days	2 years 4 months 28 days
Remaining Contractual Life, Options exercisable	1 year 4 months 28 days
2017 Plan
Funko, Inc. Stock Options
Stock Options, Outstanding (in shares)	2,905
Stock Options, Granted (in shares)	821
Stock Options, Exercised (in shares)	(268)
Stock Options, Forfeited (in shares)	(216)
Stock Options, Outstanding (in shares)	3,242	2,905
Stock Options, Options exercisable (in shares)	1,760
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 13.05
Weighted Average Exercise Price, Granted (in dollars per share)	19.82
Weighted Average Exercise Price, Exercised (in dollars per share)	14.12
Weighted Average Exercise Price, Forfeited (in dollars per share)	15.20
Weighted Average Exercise Price, Outstanding (in dollars per share)	14.54	$ 13.05
Weighted Average Exercise Options exercisable (in dollars per share)	$ 13.48
Aggregate Intrinsic Value, Outstanding	$ 4,069
Aggregate Intrinsic Value, Granted	0
Intrinsic value	2,543
Aggregate Intrinsic Value, Forfeited	812
Aggregate Intrinsic Value, Outstanding	15,973	$ 4,069
Aggregate Intrinsic Value, Options exercisable	$ 10,152
Remaining Contractual Life, Outstanding	7 years 7 months 9 days	8 years 18 days
Remaining Contractual Life, Options exercisable	6 years 9 months 21 days