Commitments and Contingencies - Additional information (Detail) $ in Millions					1 Months Ended	7 Months Ended	12 Months Ended
	Sep. 08, 2020 lawsuit	Jul. 06, 2020 lawsuit	Apr. 09, 2020 lawsuit	Jul. 02, 2018 lawsuit	Jul. 31, 2020 lawsuit	Jun. 12, 2018 lawsuit	Dec. 31, 2021 USD ($)
Lessee, Lease, Description [Line Items]
Minimum royalty obligations, Total | $							$ 11.2
Minimum royalty obligations, 2022 | $							5.3
Minimum royalty obligations, 2023 | $							4.3
Minimum royalty obligations, 2024 | $							$ 1.7
Severance payment period							1 year
Operating leases, renewal term							5 years
Nahas v. Funko, Inc. et al. and Dachev v. Funko, Inc. et al.
Lessee, Lease, Description [Line Items]
Number of additional putative class action lawsuits filed			2
In re Funko, Inc. Derivative Litigation
Lessee, Lease, Description [Line Items]
Number of additional putative class action lawsuits filed		1
Rubin V Mariotti Et Al And Fletcher V Mariotti Et Al
Lessee, Lease, Description [Line Items]
Number of additional putative class action lawsuits filed	1				2
King County V Fundamental
Lessee, Lease, Description [Line Items]
Number of additional putative class action lawsuits filed						7
Berkelhammer v. Funko, inc. et. al.
Lessee, Lease, Description [Line Items]
Number of additional putative class action lawsuits filed				1
Funko Acquisition Holdings, L.L.C.
Lessee, Lease, Description [Line Items]
Operating leases, renewal term							5 years