Goodwill and Identifiable Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2026

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying amount of goodwill by reporting unit for the three months ended March 31, 2026 is shown below. Mattel recognized additions to goodwill of approximately $196 million during the three months ended March 31, 2026 related to the acquisition of Mattel163. Brand-specific goodwill held by foreign subsidiaries is allocated to Mattel's reporting units based on the reporting unit selling those brands, thereby causing foreign currency translation impact.

	December 31, 2025		Acquisition		Currency Exchange Rate Impact		March 31, 2026
	(In thousands)
North America	$	735,207	$	125,324	$	(577)	$	859,954
International	447,391		70,496		(1,470)		516,417
American Girl	207,571		—		—		207,571
	$	1,390,169	$	195,820	$	(2,047)	$	1,583,942

Schedule of Identifiable Intangible Assets

Mattel's identifiable intangible assets, net consisted of the following:

	March 31, 2026		March 31, 2025		December 31, 2025
	(In thousands)
Identifiable intangible assets	$	966,800	$	803,872	$	808,830
Less: accumulated amortization	(480,531)		(447,970)		(471,725)
	$	486,269	$	355,902	$	337,105