Commitments and Contingencies (Detail) $ in Millions			7 Months Ended	12 Months Ended
	Jul. 06, 2020 lawsuit	Jul. 02, 2018 lawsuit	Jun. 12, 2018 stockholder	Dec. 31, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Minimum royalty obligations, Total				$ 80.4
Minimum royalty obligations, 2024				31.1
Minimum royalty obligations, 2025				48.8
Minimum royalty obligations, 2026				0.2
Minimum royalty obligations, 2027				$ 0.2
Severance payment period				1 year
Operating leases, renewal term				5 years
Expected liabilities under Tax Receivable Agreement				$ 9.0
Number of plaintiffs | stockholder			7
Cassella v. Mariotti et al., Evans v. Mariotti et al., and Igelido v. Mariotti et al.
Lessee, Lease, Description [Line Items]
Number of additional putative class action lawsuits filed | lawsuit	3	1
Funko Acquisition Holdings, L.L.C.
Lessee, Lease, Description [Line Items]
Operating leases, renewal term				5 years