Mattel (MAT) 10-Q 4 Nov 21 2021 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2021	Oct. 19, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document period end date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-05647
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-1567322
Entity Address, Address Line One	333 Continental Blvd.
Entity Address, City or Town	El Segundo,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90245-5012
City Area Code	310
Local Phone Number	252-2000
Title of 12(b) Security	Common stock, $1.00 per share
Trading Symbol	MAT
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Small Business	false
Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		350,341,243
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Registrant Name	MATTEL INC /DE/
Entity Central Index Key	0000063276
Current Fiscal Year End Date	--12-31

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Current Assets
Cash and equivalents	$ 148,508	$ 762,181	$ 452,167
Accounts receivable, net of allowances for credit losses of $11.3 million, $18.5 million and $15.9 million, respectively	1,437,904	1,033,966	1,326,128
Inventories	854,477	528,474	679,482
Prepaid expenses and other current assets	274,262	172,070	157,929
Total current assets	2,715,151	2,496,691	2,615,706
Noncurrent Assets
Property, plant, and equipment, net	455,889	473,794	462,521
Right-of-use assets, net	325,871	291,601	291,097
Goodwill	1,389,715	1,393,834	1,387,260
Other noncurrent assets	1,376,409	878,970	856,907
Total Assets	6,263,035	5,534,890	5,613,491
Current Liabilities
Short-term borrowings	128,000	969	400,000
Accounts payable	538,170	495,363	497,379
Accrued liabilities	919,047	831,922	730,790
Income taxes payable	101,619	27,125	21,252
Total current liabilities	1,686,836	1,355,379	1,649,421
Noncurrent Liabilities
Long-term debt	2,569,835	2,854,664	2,852,751
Noncurrent lease liabilities	288,232	249,353	251,957
Other noncurrent liabilities	404,454	465,350	439,559
Total noncurrent liabilities	3,262,521	3,569,367	3,544,267
Stockholders’ Equity
Common stock $1.00 par value, 1.0 billion shares authorized; 441.4 million shares issued	441,369	441,369	441,369
Additional paid-in capital	1,821,106	1,842,680	1,823,742
Treasury stock at cost: 91.0 million shares, 93.3 million shares and 93.2 million shares, respectively	(2,228,910)	(2,282,939)	(2,283,992)
Retained earnings	2,230,764	1,553,610	1,424,558
Accumulated other comprehensive loss	(950,651)	(944,576)	(985,874)
Total stockholders’ equity	1,313,678	610,144	419,803
Total Liabilities and Stockholders’ Equity	$ 6,263,035	$ 5,534,890	$ 5,613,491

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Statement of Financial Position [Abstract]
Accounts receivable, allowances for credit losses	$ 11.3	$ 15.9	$ 18.5
Common stock, par value (USD per share)	$ 1	$ 1	$ 1
Common stock authorized (in shares)	1,000,000,000	1,000,000,000	1,000,000,000
Common stock issued (in shares)	441,400,000	441,400,000	441,400,000
Treasury stock (in shares)	91,000,000	93,200,000	93,300,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net Sales	$ 1,762,293	$ 1,636,464	$ 3,662,851	$ 2,962,670
Cost of sales	919,754	808,736	1,920,470	1,555,809
Gross Profit	842,539	827,728	1,742,381	1,406,861
Advertising and promotion expenses	117,650	102,527	280,074	238,981
Other selling and administrative expenses	335,815	345,700	990,221	981,229
Operating Income	389,074	379,501	472,086	186,651
Interest expense	52,062	50,415	220,689	149,010
Interest (income)	(753)	(455)	(2,156)	(3,564)
Other non-operating expense, net	3,901	1,327	3,347	7,012
Income Before Income Taxes	333,864	328,214	250,206	34,193
(Benefit) Provision for income taxes	(456,754)	22,080	(415,805)	46,811
Income from equity method investments	4,458	5,204	11,143	7,145
Net Income (Loss)	$ 795,076	$ 311,338	$ 677,154	$ (5,473)
Net Income (Loss) Per Common Share - Basic (USD per share)	$ 2.27	$ 0.90	$ 1.94	$ (0.02)
Weighted average number of common shares (in shares)	350,424	347,628	349,642	347,206
Net Income (Loss) Per Common Share - Diluted (USD per share)	$ 2.24	$ 0.89	$ 1.91	$ (0.02)
Weighted average number of common and potential common shares (in shares)	354,178	348,714	354,313	347,206

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 795,076	$ 311,338	$ 677,154	$ (5,473)
Other Comprehensive Loss, Net of Tax
Currency translation adjustments	(29,316)	13,032	(36,517)	(105,759)
Employee benefit plan adjustments	3,624	1,291	8,193	4,869
Net unrealized (losses) gains on available-for-sale security	(1,320)	178	1,912	293
Net unrealized gains (losses) on derivative instruments:
Unrealized holding gains (losses)	13,900	(20,578)	23,230	(4,556)
Reclassification adjustments included in net income (loss)	(2,223)	(2,200)	(2,893)	(11,237)
Net unrealized gains on derivative instruments	11,677	(22,778)	20,337	(15,793)
Other Comprehensive Loss, Net of Tax	(15,335)	(8,277)	(6,075)	(116,390)
Comprehensive Income (Loss)	$ 779,741	$ 303,061	$ 671,079	$ (121,863)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash Flows From Operating Activities:
Net Income (Loss)	$ 677,154	$ (5,473)
Adjustments to reconcile net income (loss) to net cash flows used for operating activities:
Depreciation	108,848	120,073
Amortization	28,572	29,465
Share-based compensation	46,493	39,946
Bad debt expense	1,191	7,822
Inventory obsolescence	27,411	31,068
Deferred income taxes	(39,064)	8,777
Income from equity method investments	(11,143)	(6,425)
Loss on extinguishment of long-term borrowings	101,695	0
(Gain) loss on sale of assets/business, net	(22,965)	2,284
Release of valuation allowances on deferred tax assets	(492,191)	0
Changes in assets and liabilities:
Accounts receivable	(431,337)	(429,584)
Inventories	(393,349)	(204,822)
Prepaid expenses and other current assets	(11,252)	(6,721)
Accounts payable, accrued liabilities, and income taxes payable	161,884	(40,495)
Other, net	(7,823)	12,075
Net cash flows used for operating activities	(255,876)	(442,010)
Cash Flows From Investing Activities:
Purchases of tools, dies, and molds	(53,678)	(42,371)
Purchases of other property, plant, and equipment	(61,531)	(40,059)
Payments of foreign currency forward exchange contracts, net	(1,229)	(26,982)
Proceeds from sale of assets/business	43,479	1,587
Other, net	1,479	696
Net cash flows used for investing activities	(71,480)	(107,129)
Cash Flows From Financing Activities:
Proceeds from short-term borrowings, net	127,031	400,000
Payments of long-term borrowings	(1,575,997)	0
Proceeds from long-term borrowings, net	1,184,913	0
Option proceeds and tax withholdings for share-based compensation, net	(14,223)	(6,968)
Other, net	(1,640)	388
Net cash flows (used for) provided by financing activities	(279,916)	393,420
Effect of Currency Exchange Rate Changes on Cash and Equivalents	(6,401)	(22,142)
Decrease in Cash and Equivalents	(613,673)	(177,861)
Cash and Equivalents at Beginning of Period	762,181	630,028
Cash and Equivalents at End of Period	$ 148,508	$ 452,167

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2019	$ 508,564	$ 441,369	$ 1,825,569	$ (2,318,921)	$ 1,430,031	$ (869,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(205,702)				(205,702)
Other comprehensive income (loss), net of tax	(136,399)					(136,399)
Issuance of treasury stock for restricted stock units vesting	(966)		(3,777)	2,811
Share-based compensation	14,275		14,275
Ending balance at Mar. 31, 2020	179,772	441,369	1,836,067	(2,316,110)	1,224,329	(1,005,883)
Beginning balance at Dec. 31, 2019	508,564	441,369	1,825,569	(2,318,921)	1,430,031	(869,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(5,473)
Other comprehensive income (loss), net of tax	(116,390)
Ending balance at Sep. 30, 2020	419,803	441,369	1,823,742	(2,283,992)	1,424,558	(985,874)
Beginning balance at Mar. 31, 2020	179,772	441,369	1,836,067	(2,316,110)	1,224,329	(1,005,883)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(111,109)				(111,109)
Other comprehensive income (loss), net of tax	28,286					28,286
Issuance of treasury stock for restricted stock units vesting	(111)		(944)	833
Deferred compensation	124		(186)	310
Share-based compensation	9,138		9,138
Ending balance at Jun. 30, 2020	106,100	441,369	1,844,075	(2,314,967)	1,113,220	(977,597)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	311,338				311,338
Other comprehensive income (loss), net of tax	(8,277)					(8,277)
Issuance of treasury stock for restricted stock units vesting	(5,890)		(36,865)	30,975
Share-based compensation	16,532		16,532
Ending balance at Sep. 30, 2020	419,803	441,369	1,823,742	(2,283,992)	1,424,558	(985,874)
Beginning balance at Dec. 31, 2020	610,144	441,369	1,842,680	(2,282,939)	1,553,610	(944,576)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(112,385)				(112,385)
Other comprehensive income (loss), net of tax	(16,450)					(16,450)
Issuance of treasury stock for stock option exercises	1,110		(803)	1,913
Issuance of treasury stock for restricted stock units vesting	(6,966)		(20,031)	13,065
Share-based compensation	15,112		15,112
Ending balance at Mar. 31, 2021	490,565	441,369	1,836,958	(2,267,961)	1,441,225	(961,026)
Beginning balance at Dec. 31, 2020	610,144	441,369	1,842,680	(2,282,939)	1,553,610	(944,576)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	677,154
Other comprehensive income (loss), net of tax	(6,075)
Ending balance at Sep. 30, 2021	1,313,678	441,369	1,821,106	(2,228,910)	2,230,764	(950,651)
Beginning balance at Mar. 31, 2021	490,565	441,369	1,836,958	(2,267,961)	1,441,225	(961,026)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(5,537)				(5,537)
Other comprehensive income (loss), net of tax	25,710					25,710
Issuance of treasury stock for stock option exercises	2,154		(676)	2,830
Issuance of treasury stock for restricted stock units vesting	(529)		(3,212)	2,683
Deferred compensation	188		(37)	225
Share-based compensation	15,168		15,168
Ending balance at Jun. 30, 2021	527,719	441,369	1,848,201	(2,262,223)	1,435,688	(935,316)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	795,076				795,076
Other comprehensive income (loss), net of tax	(15,335)					(15,335)
Issuance of treasury stock for stock option exercises	2,258		(1,585)	3,843
Issuance of treasury stock for restricted stock units vesting	(12,252)		(41,722)	29,470
Share-based compensation	16,212		16,212
Ending balance at Sep. 30, 2021	$ 1,313,678	$ 441,369	$ 1,821,106	$ (2,228,910)	$ 2,230,764	$ (950,651)

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements and related disclosures have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") applicable to interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In the opinion of management, all adjustments, consisting of only those of a normal recurring nature, considered necessary for a fair statement of the financial position and interim results of Mattel, Inc. and its subsidiaries ("Mattel") as of and for the periods presented have been included. The December 31, 2020 balance sheet data was derived from audited financial statements; however, the accompanying interim notes to the consolidated financial statements do not include all of the annual disclosures required by GAAP. As Mattel's business is seasonal, results for interim periods are not necessarily indicative of those that may be expected for a full year. The financial information included herein should be read in conjunction with Mattel's consolidated financial statements and related notes in the 2020 Annual Report on Form 10-K. Certain prior period amounts have been reclassified to conform to the current period presentation. Revision of Previously Issued Consolidated Financial Statements During the quarter ended June 30, 2021, Mattel identified a misstatement in its accounting for inventory tooling expenses, which were expensed to cost of sales rather than first being capitalized into the cost of inventory, which resulted in an understatement of inventory balances and a misstatement of cost of sales. Mattel also identified a misstatement related to the timing of disbursements for certain capital expenditures, which resulted in a cash flow misclassification between operating activities and investing activities. Mattel evaluated the misstatements and concluded that the misstatements were not material, either individually or in the aggregate, to its current or previously issued consolidated financial statements. To correct the immaterial misstatements, during the quarter ended June 30, 2021, Mattel elected to revise its previously issued consolidated financial statements as of December 31, 2020 and 2019, and for each of the three years ended December 31, 2020, 2019, and 2018 and its unaudited consolidated financial statements as of and for the quarters and year-to-date periods ended March 31, 2020 and 2021, June 30, 2020, and September 30, 2020. The revision of the historical consolidated financial statements also includes the correction of other immaterial misstatements in its consolidated statement of operations that Mattel had previously recorded as out of period adjustments, as well as other previously identified balance sheet misclassifications. Mattel had previously determined that these misstatements did not, either individually or in the aggregate, result in a material misstatement of its previously issued consolidated financial statements and reached the same conclusion when aggregating with the recently identified misstatements. Further information regarding the misstatements and related revision is included in "Note 24 to the Consolidated Financial Statements — Revision for Immaterial Misstatements."

Accounts Receivable

Accounts Receivable	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Accounts Receivable	Accounts Receivable Mattel estimates current expected credit losses based on collection history and management’s assessment of the current economic trends, business environment, customers’ financial condition, and accounts receivable aging that may impact the level of future credit losses. Accounts receivable are net of allowances for credit losses of $11.3 million, $18.5 million, and $15.9 million as of September 30, 2021, September 30, 2020, and December 31, 2020, respectively.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories include the following: September 30, September 30, December 31, (In thousands) Raw materials and work in process $ 183,070 $ 113,248 $ 110,010 Finished goods 671,407 566,234 418,464 $ 854,477 $ 679,482 $ 528,474

Property, Plant, and Equipment

Property, Plant, and Equipment	9 Months Ended
	Sep. 30, 2021
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment	Property, Plant, and Equipment Property, plant, and equipment, net includes the following: September 30, September 30, December 31, (In thousands) Land $ 21,817 $ 24,906 $ 24,913 Buildings 321,478 334,466 335,407 Machinery and equipment 774,792 750,119 772,349 Software 350,592 346,127 344,268 Tools, dies, and molds 607,226 608,301 607,915 Leasehold improvements 118,590 134,696 131,578 2,194,495 2,198,615 2,216,430 Less: accumulated depreciation (1,738,606) (1,736,094) (1,742,636) $ 455,889 $ 462,521 $ 473,794 During the three months ended March 31, 2021, Mattel completed the sale of a manufacturing plant based in Mexico, which included land and buildings, resulting in a pre-tax gain o f $15.8 million. The assets sold were previously designated as held for sale, and included within property, plant, and equipment, net in the consolidated balance sheets as of December 31, 2020 and September 30, 2020.

Goodwill

Goodwill	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill Goodwill is allocated to various reporting units, which are at the operating segment level, for the purpose of evaluating whether goodwill is impaired. Mattel's reporting units are: (i) North America, (ii) International, and (iii) American Girl. Components of the operating segments have been aggregated into a single reporting unit as the components have similar economic characteristics. The similar economic characteristics include the nature of the products, the nature of the production processes, the customers, and the manner in which the products are distributed. Mattel tests its goodwill for impairment annually in the third quarter and whenever events or changes in circumstances indicate that the carrying value of a reporting unit may exceed its fair value. In the third quarter of 2021, Mattel performed a qualitative assessment to determine whether it was more likely than not that the book value of Mattel's reporting units exceeded its fair value. As a result of Mattel's qualitative assessment, it was determined that goodwill was not impaired. The change in the carrying amount of goodwill by operating segment for the nine months ended September 30, 2021 is shown below. Brand-specific goodwill held by foreign subsidiaries is allocated to the North America segment, thereby causing a foreign currency translation impact. During the first quarter of 2021, Mattel sold its arts, crafts, and stationery business, resulting in a reduction of goodwill of approximately $2 million. December 31, Dispositions Currency September 30, (In thousands) North America $ 733,401 $ (1,290) $ (455) $ 731,656 International 452,862 (1,056) (1,318) 450,488 American Girl 207,571 — — 207,571 $ 1,393,834 $ (2,346) $ (1,773) $ 1,389,715

Other Noncurrent Assets

Other Noncurrent Assets	9 Months Ended
	Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Noncurrent Assets	Other Noncurrent Assets Other noncurrent assets include the following: September 30, September 30, December 31, (In thousands) Identifiable intangible assets (net of accumulated amortization of $315.5 million, $277.5 million, and $286.9 million, respectively) $ 487,769 $ 519,861 $ 518,190 Deferred income taxes 579,950 60,850 72,682 Mattel's amortizable intangible assets primarily consist of trademarks. Mattel tests its amortizable intangible assets for impairment whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. Mattel's amortizable intangible assets were not impaired during the three and nine months ended September 30, 2021 and 2020.

Accrued Liabilities

Accrued Liabilities	9 Months Ended
	Sep. 30, 2021
Payables and Accruals [Abstract]
Accrued Liabilities	Accrued Liabilities Accrued liabilities include the following: September 30, September 30, December 31, (In thousands) Incentive compensation $ 108,633 $ 97,635 $ 126,601 Advertising and promotion 98,746 89,597 163,181 Current lease liabilities 68,706 85,120 79,540

Seasonal Financing

Seasonal Financing	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Seasonal Financing	Seasonal Financing On December 20, 2017, Mattel entered into a syndicated facility agreement, which was subsequently amended in 2018, 2019, and 2021 (as amended, the "Credit Agreement"), as a borrower (in such capacity, the "Borrower") and guarantor thereunder, along with certain of the Borrower's domestic and foreign subsidiaries as additional borrowers and/or guarantors thereunder. On March 19, 2021, Mattel entered into the fourth amendment to the Credit Agreement, which amended certain terms, including, but not limited to, certain components of the borrowing base, a reduction of the aggregate principal commitments of the senior secured revolving credit facilities (the "senior secured revolving credit facilities") from $1.60 billion to $1.40 billion, and an extension of the maturity date from November 18, 2022 to March 19, 2024. The senior secured revolving credit facilities consist of (i) an asset based lending facility with aggregate commitments up to $1.11 billion, subject to borrowing base capacity, secured by substantially all of the accounts receivable and inventory of the Borrower and certain of its subsidiaries who are borrowers and/or guarantors under the Credit Agreement, and (ii) a revolving credit facility with $294.0 million in aggregate commitments secured by certain fixed assets and intellectual property of the U.S. borrowers under the Credit Agreement, and certain equity interests in the borrower and guarantor subsidiaries under the Credit Agreement. Borrowings under the senior secured revolving credit facilities (i) are limited by jurisdiction-specific borrowing base calculations based on the sum of specified percentages of eligible accounts receivable, eligible inventory and certain fixed assets and intellectual property, as applicable, minus the amount of any applicable reserves, and (ii) bear interest at a floating rate, which can be either, at the Borrower's option, (a) an adjusted LIBOR rate plus an applicable margin ranging from 1.25% to 1.75% per annum or (b) an alternate base rate plus an applicable margin ranging from 0.25% to 0.75% per annum, in each case, such applicable margins to be determined based on the Borrower's average borrowing availability remaining under the senior secured revolving credit facilities. In addition to paying interest on the outstanding principal under the senior secured revolving credit facilities, the Borrower is required to pay (i) an unused line fee per annum of the average daily unused portion of the senior secured revolving credit facilities, (ii) a letter of credit fronting fee based on a percentage of the aggregate face amount of outstanding letters of credit, and (iii) certain other customary fees and expenses of the lenders and agents. Mattel had $128.0 million of borrowings under the senior secured revolving credit facilities as of September 30, 2021, $400.0 million of borrowings as of September 30, 2020, and no borrowings under the senior secured revolving credit facilities as of December 31, 2020. Outstanding letters of credit under the senior secured revolving credit facilities totaled approximately $10 million, $13 million, and $11 million as of September 30, 2021, September 30, 2020, and December 31, 2020, respectively. As of September 30, 2021, Mattel was in compliance with all covenants contained in the Credit Agreement. The Credit Agreement is a material agreement, and failure to comply with the covenants may result in an event of default under the terms of the senior secured revolving credit facilities. If Mattel were to default under the terms of the senior secured revolving credit facilities, its ability to meet its seasonal financing requirements could be adversely affected.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt includes the following: September 30, September 30, December 31, (In thousands) 2010 Senior Notes due October 2040 $ 250,000 $ 250,000 $ 250,000 2011 Senior Notes due November 2041 300,000 300,000 300,000 2013 Senior Notes due March 2023 250,000 250,000 250,000 2017/2018 Senior Notes due December 2025 — 1,500,000 1,500,000 2019 Senior Notes due December 2027 600,000 600,000 600,000 2021 Senior Notes due April 2026 600,000 — — 2021 Senior Notes due April 2029 600,000 — — Debt issuance costs and debt discount (30,165) (47,249) (45,336) $ 2,569,835 $ 2,852,751 $ 2,854,664 On March 19, 2021, Mattel issued (i) $600 million aggregate principal amount of 3.375% Senior Notes due 2026 (the "2026 Notes") and (ii) $600 million aggregate principal amount of 3.750% Senior Notes due 2029 (the "2029 Notes" and, together with the 2026 Notes, the "Notes"). The 2026 Notes will mature on April 1, 2026 and the 2029 Notes will mature on April 1, 2029, unless earlier redeemed in accordance with their respective terms. The Notes are guaranteed by Mattel’s existing and, subject to certain exceptions, future wholly-owned domestic restricted subsidiaries that guarantee Mattel’s senior secured revolving credit facilities or certain other indebtedness. The net proceeds from the offering, together with cash on hand, were used to redeem $1,225 million in aggregate principal amount of Mattel’s outstanding 6.750% Senior Notes due December 2025 (the "2025 Notes") and pay related prepayment premiums and transaction fees and expenses. As a result of the partial redemption of the 2025 Notes, Mattel incurred a loss on extinguishment of $83.2 million, comprised of $62.0 million of prepayment premium costs and a $21.2 million write-off of the unamortized debt issuance costs, which was recorded within interest expense in the consolidated statements of operations.

Other Noncurrent Liabilities

Other Noncurrent Liabilities	9 Months Ended
	Sep. 30, 2021
Payables and Accruals [Abstract]
Other Noncurrent Liabilities	Other Noncurrent Liabilities Other noncurrent liabilities include the following: September 30, September 30, December 31, (In thousands) Benefit plan liabilities $ 202,601 $ 203,295 $ 225,957 Deferred income tax liability 38,850 61,870 60,892

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The following tables present changes in the accumulated balances for each component of other comprehensive income (loss), including other comprehensive income (loss) and reclassifications out of accumulated other comprehensive income (loss) for each period: For the Three Months Ended September 30, 2021 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Loss, Net of Tax, as of June 30, 2021 $ (6,709) $ (4,290) $ (182,285) $ (742,032) $ (935,316) Other comprehensive income (loss) before reclassifications 13,900 (1,320) 56 (29,316) (16,680) Amounts reclassified from accumulated other comprehensive loss (2,223) — 3,568 — 1,345 Net increase (decrease) in other comprehensive income (loss) 11,677 (1,320) 3,624 (29,316) (15,335) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of September 30, 2021 $ 4,968 $ (5,610) $ (178,661) $ (771,348) $ (950,651) For the Nine Months Ended September 30, 2021 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Loss, Net of Tax, as of December 31, 2020 $ (15,369) $ (7,522) $ (186,854) $ (734,831) $ (944,576) Other comprehensive income (loss) before reclassifications 23,230 1,912 (203) (36,517) (11,578) Amounts reclassified from accumulated other comprehensive loss (2,893) — 8,396 — 5,503 Net increase (decrease) in other comprehensive income (loss) 20,337 1,912 8,193 (36,517) (6,075) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of September 30, 2021 $ 4,968 $ (5,610) $ (178,661) $ (771,348) $ (950,651) For the Three Months Ended September 30, 2020 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of June 30, 2020 $ 18,026 $ (8,145) $ (166,279) $ (821,199) $ (977,597) Other comprehensive (loss) income before reclassifications (20,578) 178 (432) 13,032 (7,800) Amounts reclassified from accumulated other comprehensive income (loss) (2,200) — 1,723 — (477) Net (decrease) increase in other comprehensive (loss) income (22,778) 178 1,291 13,032 (8,277) Accumulated Other Comprehensive Loss, Net of Tax, as of September 30, 2020 $ (4,752) $ (7,967) $ (164,988) $ (808,167) $ (985,874) For the Nine Months Ended September 30, 2020 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of December 31, 2019 $ 11,041 $ (8,260) $ (169,857) $ (702,408) $ (869,484) Other comprehensive (loss) income before reclassifications (4,556) 293 67 (105,759) (109,955) Amounts reclassified from accumulated other comprehensive income (loss) (11,237) — 4,802 — (6,435) Net (decrease) increase in other comprehensive (loss) income (15,793) 293 4,869 (105,759) (116,390) Accumulated Other Comprehensive Loss, Net of Tax, as of September 30, 2020 $ (4,752) $ (7,967) $ (164,988) $ (808,167) $ (985,874) The following table presents the classification and amount of the reclassifications from accumulated other comprehensive income (loss) to the consolidated statements of operations: For the Three Months Ended September 30, September 30, Statements of Operations (In thousands) Derivative Instruments Gain on foreign currency forward exchange and other contracts $ 2,322 $ 2,143 Cost of sales Tax effect (99) 57 (Benefit) Provision for income taxes $ 2,223 $ 2,200 Net Income (loss) Employee Benefit Plans Amortization of prior service credit (a) $ 455 $ 472 Other non-operating expense, net Recognized actuarial loss (a) (2,830) (2,336) Other non-operating expense, net Settlement loss (a) (3,375) — Other non-operating expense, net (5,750) (1,864) Tax effect 2,182 141 (Benefit) Provision for income taxes $ (3,568) $ (1,723) Net Income (loss) For the Nine Months Ended September 30, September 30, Statements of Operations (In thousands) Derivative Instruments Gain on foreign currency forward exchange and other contracts $ 3,191 $ 11,086 Cost of sales Tax effect (298) 151 (Benefit) Provision for income taxes $ 2,893 $ 11,237 Net Income (loss) Employee Benefit Plans Amortization of prior service credit (a) $ 1,253 $ 1,405 Other non-operating expense, net Recognized actuarial loss (a) (8,394) (7,014) Other non-operating expense, net Settlement loss (a) (3,375) — Other non-operating expense, net (10,516) (5,609) Tax effect 2,120 807 (Benefit) Provision for income taxes $ (8,396) $ (4,802) Net Income (loss) _______________________________________ (a) The amortization of prior service credit, recognized actuarial loss, and settlement loss are included in the computation of net periodic benefit cost. Refer to "Note 16 to the Consolidated Financial Statements—Employee Benefit Plans" for additional information regarding Mattel's net periodic benefit cost. Currency Translation Adjustments Mattel's reporting currency is the U.S. dollar. The translation of its net investments in subsidiaries with non-U.S. dollar functional currencies subjects Mattel to the impact of foreign currency exchange rate fluctuations in its results of operations and financial position. Assets and liabilities of subsidiaries with non-U.S. dollar functional currencies are translated into U.S. dollars at fiscal period-end exchange rates. Income and expense items are translated at weighted-average exchange rates prevailing during the fiscal period. The resulting currency translation adjustments are recorded as a component of accumulated other comprehensive loss within stockholders' equity. Currency translation adjustments resulted in a net loss of $36.5 million for the nine months ended September 30, 2021, primarily due to the weakening of the Mexican peso, Chilean peso, Turkish lira, British pound sterling, and the Euro against the U.S. dollar. Currency translation adjustments resulted in a net loss of $105.8 million for the nine months ended September 30, 2020, primarily due to the weakening of the Brazilian real, Mexican peso, Russian ruble, and the British pound sterling against the U.S. dollar.

Foreign Currency Transaction Ex

Foreign Currency Transaction Exposure	9 Months Ended
	Sep. 30, 2021
Foreign Currency [Abstract]
Foreign Currency Transaction Exposure	Foreign Currency Transaction ExposureCurrency exchange rate fluctuations impact Mattel's results of operations and cash flows. Mattel's currency transaction exposures include gains and losses realized on unhedged inventory purchases and unhedged receivables and payables balances that are denominated in a currency other than the applicable functional currency. Gains and losses on unhedged inventory purchases and other transactions associated with operating activities are recorded in the components of operating income in the consolidated statements of operations. Gains and losses on unhedged intercompany loans and advances are recorded as a component of other non-operating expense, net in the consolidated statements of operations in the period in which the currency exchange rate changes. Inventory transactions denominated in the Euro, Mexican peso, Australian dollar, British pound sterling, Canadian dollar, Russian ruble, and Brazilian real were the primary transactions that caused foreign currency transaction exposure for Mattel during the nine months ended September 30, 2021. Currency transaction losses included in the consolidated statements of operations are as follows: For the Three Months Ended September 30, September 30, Statements of Operations Classification (In thousands) Currency transaction losses $ (4,855) $ (2,119) Operating income/loss Currency transaction losses (326) (553) Other non-operating income/expense, net Currency transaction losses, net $ (5,181) $ (2,672) For the Nine Months Ended September 30, September 30, Statements of Operations Classification (In thousands) Currency transaction losses $ (7,358) $ (8,037) Operating income/loss Currency transaction losses (5,135) (2,988) Other non-operating income/expense, net Currency transaction losses, net $ (12,493) $ (11,025)

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative InstrumentsMattel seeks to mitigate its exposure to foreign currency transaction risk by monitoring its foreign currency transaction exposure for the year and partially hedging such exposure using foreign currency forward exchange contracts. Mattel uses foreign currency forward exchange contracts as cash flow hedges primarily to hedge its purchases and sales of inventory denominated in foreign currencies. These contracts generally have maturity dates of up to 18 months. These derivative instruments have been designated as effective cash flow hedges, whereby the unsettled hedges are reported in Mattel's consolidated balance sheets at fair value, with changes in the fair value of the hedges reflected in other comprehensive income (loss) ("OCI"). Realized gains and losses for these contracts are recorded in the consolidated statements of operations in the period in which the inventory is sold to customers. Mattel uses foreign currency forward exchange contracts to hedge intercompany loans and advances denominated in foreign currencies. Due to the short-term nature of the contracts involved, Mattel does not use hedge accounting for these contracts, and as such, changes in fair value are recorded in the period of change in the consolidated statements of operations. Mattel utilizes derivative contracts to hedge certain purchases of commodities, which were not material. As of September 30, 2021, September 30, 2020, and December 31, 2020, Mattel held foreign currency forward exchange contracts and other commodity derivative instruments, with notional amounts of $861.2 million, $903.1 million, and $855.0 million, respectively. The following tables present Mattel's derivative assets and liabilities: Derivative Assets Balance Sheet Classification Fair Value September 30, September 30, December 31, (In thousands) Derivatives designated as hedging instruments Foreign currency forward exchange and other contracts Prepaid expenses and other current assets $ 11,624 $ 5,340 $ 3,641 Foreign currency forward exchange and other contracts Other noncurrent assets 2,775 896 50 Total derivatives designated as hedging instruments $ 14,399 $ 6,236 $ 3,691 Derivatives not designated as hedging instruments Foreign currency forward exchange and other contracts Prepaid expenses and other current assets $ 1,165 $ 2,337 $ 1,982 Foreign currency forward exchange and other contracts Other noncurrent assets — — 38 Total derivatives not designated as hedging instruments $ 1,165 $ 2,337 $ 2,020 $ 15,564 $ 8,573 $ 5,711 Derivative Liabilities Balance Sheet Classification Fair Value September 30, September 30, December 31, (In thousands) Derivatives designated as hedging instruments Foreign currency forward exchange and other contracts Accrued liabilities $ 4,046 $ 9,256 $ 20,330 Foreign currency forward exchange and other contracts Other noncurrent liabilities 7 3,602 4,361 Total derivatives designated as hedging instruments $ 4,053 $ 12,858 $ 24,691 Derivatives not designated as hedging instruments Foreign currency forward exchange and other contracts Accrued liabilities $ 2,247 $ 984 $ 803 Foreign currency forward exchange and other contracts Other noncurrent liabilities — 99 — Total derivatives not designated as hedging instruments $ 2,247 $ 1,083 $ 803 $ 6,300 $ 13,941 $ 25,494 The following tables present the classification and amount of gains and losses, net of tax, from derivatives reported in the consolidated statements of operations: Derivatives Designated As Hedging Instruments For the Three Months Ended September 30, September 30, Statements of (In thousands) Foreign currency forward exchange contracts: Amount of gains (losses) recognized in OCI $ 13,900 $ (20,578) Amount of gains reclassified from accumulated OCI to consolidated statements of operations 2,223 2,200 Cost of sales Derivatives Designated As Hedging Instruments For the Nine Months Ended September 30, September 30, Statements of (In thousands) Foreign currency forward exchange contracts: Amount of gains (losses) recognized in OCI $ 23,230 $ (4,556) Amount of gains reclassified from accumulated OCI to consolidated statements of operations 2,893 11,237 Cost of sales The net gains (losses) reclassified from accumulated other comprehensive loss to the consolidated statements of operations during the three and nine months ended September 30, 2021 and 2020, respectively, were offset by the changes in cash flows associated with the underlying hedged transactions. Derivatives Not Designated As Hedging Instruments For the Three Months Ended September 30, September 30, Statements of (In thousands) Amount of net (losses) gains recognized in the Statements of Operations Foreign currency forward exchange and other contract (losses) gains $ (2,900) $ 232 Other non-operating expense, net $ (2,900) $ 232 Derivatives Not Designated As Hedging Instruments For the Nine Months Ended September 30, September 30, Statements of (In thousands) Amount of net losses recognized in the Statements of Operations Foreign currency forward exchange and other contract (losses) $ (3,863) $ (30,015) Other non-operating expense, net Foreign currency forward exchange and other contract gains 639 — Cost of sales $ (3,224) $ (30,015) The net (losses) gains recognized in the consolidated statements of operations during the three and nine months ended September 30, 2021 and September 30, 2020, respectively, were offset by foreign currency transaction gains and losses on the related hedged balances.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following tables present information about Mattel's assets and liabilities measured and reported in the financial statements at fair value on a recurring basis as of September 30, 2021, September 30, 2020, and December 31, 2020 and indicate the fair value hierarchy of the valuation techniques utilized to determine such fair value. The three levels of the fair value hierarchy are as follows: • Level 1 – Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the entity has the ability to access. • Level 2 – Valuations based on quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities, either directly or indirectly. • Level 3 – Valuations based on inputs that are unobservable, supported by little or no market activity, and that are significant to the fair value of the assets or liabilities. Mattel's financial assets and liabilities include the following: September 30, 2021 Level 1 Level 2 Level 3 Total (In thousands) Assets: Foreign currency forward exchange contracts and other (a) $ — $ 15,564 $ — $ 15,564 Available-for-sale (b) 6,180 — — 6,180 Total assets $ 6,180 $ 15,564 $ — $ 21,744 Liabilities: Foreign currency forward exchange contracts and other (a) $ — $ 6,300 $ — $ 6,300 September 30, 2020 Level 1 Level 2 Level 3 Total (In thousands) Assets: Foreign currency forward exchange contracts and other (a) $ — $ 8,573 $ — $ 8,573 Available-for-sale (b) 3,823 — — 3,823 Total assets $ 3,823 $ 8,573 $ — $ 12,396 Liabilities: Foreign currency forward exchange contracts and other (a) $ — $ 13,941 $ — $ 13,941 December 31, 2020 Level 1 Level 2 Level 3 Total (In thousands) Assets: Foreign currency forward exchange contracts and other (a) $ — $ 5,711 $ — $ 5,711 Available-for-sale (b) 4,268 — — 4,268 Total assets $ 4,268 $ 5,711 $ — $ 9,979 Liabilities: Foreign currency forward exchange contracts and other (a) $ — $ 25,494 $ — $ 25,494 ____________________________________________ (a) The fair value of the foreign currency forward exchange contracts and other commodity derivative instruments is based on dealer quotes of market forward rates and reflects the amount that Mattel would receive or pay at their maturity dates for contracts involving the same notional amounts, currencies, and maturity dates. (b) The fair value of the available-for-sale security is based on the quoted price on an active public exchange. Other Financial Instruments Mattel's financial instruments include cash and equivalents, accounts receivable, accounts payable, accrued liabilities, short-term borrowings, and long-term debt. The fair values of these instruments, excluding long-term debt, approximate their carrying values because of their short-term nature. Cash and equivalents are classified as Level 1 and all other financial instruments are classified as Level 2 within the fair value hierarchy. The estimated fair value of Mattel's long-term debt was $2.83 billion (compared to a carrying value of $2.60 billion) as of September 30, 2021, $2.98 billion (compared to a carrying value of $2.90 billion) as of September 30, 2020, and $3.11 billion (compared to a carrying value of $2.90 billion) as of December 31, 2020. The estimated fair values have been calculated based on broker quotes or rates for the same or similar instruments and are classified as Level 2 within the fair value hierarchy.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table reconciles basic and diluted earnings per common share for the three and nine months ended September 30, 2021 and 2020: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands, except per share amounts) Basic: Net income (loss) $ 795,076 $ 311,338 $ 677,154 $ (5,473) Weighted-average number of common shares 350,424 347,628 349,642 347,206 Basic net income (loss) per common share $ 2.27 $ 0.90 $ 1.94 $ (0.02) Diluted: Net income (loss) $ 795,076 $ 311,338 $ 677,154 $ (5,473) Weighted-average number of common shares 350,424 347,628 349,642 347,206 Dilutive share-based awards (a) 3,754 1,086 4,671 — Weighted-average number of common and potential common shares 354,178 348,714 354,313 347,206 Diluted net income (loss) per common share $ 2.24 $ 0.89 $ 1.91 $ (0.02) _______________________________________ (a) For the three and nine months ended September 30, 2021, share-based awards totaling 12.6 million and 11.7 million, respectively, were excluded from the calculation of diluted net income per common share because their effect would be antidilutive. For the three months ended September 30, 2020, share-based awards totaling 22.3 million were excluded from the calculation of diluted net income per common share because their effect would be antidilutive. Mattel was in a net loss position for the nine months ended September 30, 2020, and, accordingly, all outstanding share-based awards were excluded from the calculation of diluted net loss per common share because their effect would be antidilutive.

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans Mattel and certain of its subsidiaries have qualified and nonqualified retirement plans covering substantially all employees of these companies, which are more fully described in Part II, Item 8 "Financial Statements and Supplementary Data—Note 4 to the Consolidated Financial Statements–Employee Benefit Plans" in the 2020 Annual Report on Form 10-K. A summary of the components of net periodic benefit cost for Mattel's defined benefit pension plans is as follows: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) (In thousands) Service cost $ 1,194 $ 1,015 $ 3,780 $ 3,236 Interest cost 2,525 3,729 7,595 11,247 Expected return on plan assets (4,627) (4,899) (13,891) (14,722) Amortization of prior service cost 54 37 275 123 Recognized actuarial loss 2,832 2,355 8,401 7,070 Settlement loss 3,375 — 3,375 — $ 5,353 $ 2,237 $ 9,535 $ 6,954 A summary of the components of net periodic benefit cost for Mattel's postretirement benefit plans is as follows: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) (In thousands) Interest cost $ 19 $ 35 $ 59 $ 104 Amortization of prior service credit (509) (509) (1,528) (1,528) Recognized actuarial gain (2) (19) (7) (56) $ (492) $ (493) $ (1,476) $ (1,480) Mattel's service cost component is recorded within operating income while other components of net periodic pension cost and postretirement benefit cost are recorded outside of operating income, presented in other non-operating expense, net. During the nine months ended September 30, 2021, Mattel made cash contributions totaling approximately $10 million related to its defined benefit pension and postretirement benefit plans. During the remainder of 2021, Mattel expects to make additional cash contributions of approximately $12 million.

Share-Based Payments

Share-Based Payments	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-Based Payments	Share-Based Payments Mattel has various stock compensation plans, which are more fully described in Part II, Item 8 "Financial Statements and Supplementary Data—Note 8 to the Consolidated Financial Statements—Share-Based Payments" in the 2020 Annual Report on Form 10-K. Under the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, Mattel has the ability to grant nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, RSUs, performance awards, dividend equivalent rights, and shares of common stock to officers, employees, and other persons providing services to Mattel. Stock options are granted with exercise prices at the fair market value of Mattel's common stock on the applicable grant date and expire no later than ten years from the date of grant. Stock options, RSUs, and performance awards generally provide for vesting over, or at the end of, a period of three years from the date of grant. As of September 30, 2021, three long-term incentive programs were in place with the following performance cycles: (i) a January 1, 2019–December 31, 2021 performance cycle, (ii) a January 1, 2020–December 31, 2022 performance cycle, and (iii) a January 1, 2021–December 31, 2023 performance cycle. Compensation expense, included within other selling and administrative expenses in the consolidated statements of operations, related to stock options, RSUs, and performance awards is as follows: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Stock option compensation expense $ 2,407 $ 3,095 $ 7,851 $ 8,602 RSU compensation expense 6,633 7,973 20,664 21,923 Performance award compensation expense 7,172 5,464 17,978 9,421 $ 16,212 $ 16,532 $ 46,493 $ 39,946 As of September 30, 2021, total unrecognized compensation expense related to unvested share-based payments totaled $105.8 million and is expected to be recognized over a weighted-average period of 2.3 years. Mattel uses treasury shares purchased under its share repurchase program to satisfy stock option exercises and the vesting of RSUs and performance awards. For the nine months ended September 30, 2021, cash received for stock option exercises was $5.5 million. For the nine months ended September 30, 2020, no cash was received for stock option exercises.

Other Selling and Administrativ

Other Selling and Administrative Expenses	9 Months Ended
	Sep. 30, 2021
Other Income and Expenses [Abstract]
Other Selling and Administrative Expenses	Other Selling and Administrative Expenses Other selling and administrative expenses include the following: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Design and development $ 47,739 $ 45,495 $ 138,466 $ 136,609 Identifiable intangible asset amortization 9,514 9,813 28,572 29,465

Restructuring Charges

Restructuring Charges	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges Optimizing for Growth (formerly Capital Light) On February 9, 2021, Mattel announced the Optimizing for Growth program, a multi-year cost savings program that integrates and expands upon the previously announced Capital Light program (the "Program"). In connection with the Program, Mattel recorded severance and other restructuring costs in the following cost and expense categories within the consolidated statements of operations: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Cost of sales (a) $ 148 $ 348 $ 1,930 $ 4,812 Other selling and administrative expenses (b) 9,258 2,259 26,411 6,379 $ 9,406 $ 2,607 $ 28,341 $ 11,191 _______________________________________ (a) Severance and other restructuring costs recorded within cost of sales in the consolidated statements of operations include charges associated with the consolidation of manufacturing facilities. (b) Severance and other restructuring costs recorded within other selling and administrative expenses in the consolidated statements of operations are included in corporate and other expense in "Note 22 to the Consolidated Financial Statements—Segment Information." The following table summarizes Mattel's severance and other restructuring charges activity related to the Program for the nine months ended September 30, 2021: Liability at December 31, 2020 Charges (a) Payments/Utilization Liability at September 30, 2021 (In thousands) Severance $ 5,294 $ 15,277 $ (7,716) $ 12,855 Other restructuring charges 30 13,064 (10,179) 2,915 $ 5,324 $ 28,341 $ (17,895) $ 15,770 _______________________________________ (a) Other restructuring charges consist primarily of charges associated with the consolidation of manufacturing facilities and commercial and corporate functions. As of September 30, 2021, Mattel has recorded cumulative severance and other restructuring charges related to the Program of approximately $79 million, which include approximately $20 million of non-cash charges. Furthermore, cumulatively, in conjunction with previous actions taken under the Program, total expected cash expenditures are approximately $140 to $165 million and total expected non-cash charges are $40 to $45 million. During the three months ended March 31, 2021, in conjunction with the Program, Mattel completed the sale of a manufacturing plant based in Mexico, which included land and buildings, resulting in a pre-tax gain of $15.8 million. Other Cost Savings Actions During the first nine months of 2020, Mattel recorded severance charges of approximately $18 million, primarily related to actions taken to further streamline its organizational structure.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Mattel's provision for income taxes was a benefit of $456.8 million and $415.8 million for the three and nine months ended September 30, 2021, respectively, and provision for income taxes was an expense of $22.1 million and $46.8 million for the three and nine months ended September 30, 2020, respectively. During the three and nine months ended September 30, 2021, Mattel recognized a net discrete tax benefit of $465.3 million and $445.8 million, respectively, primarily related to the release of valuation allowances on certain U.S. and foreign deferred tax assets, income taxes recorded on a discrete basis in various jurisdictions, and reassessments of prior years' tax liabilities. During the three and nine months ended September 30, 2020, Mattel recognized a net discrete tax expense of $1.7 million and $11.4 million, respectively, primarily related to income taxes recorded on a discrete basis in various jurisdictions and reassessments of prior years' tax liabilities. Evaluating the need for and the amount of a valuation allowance for deferred tax assets often requires significant judgment and extensive analysis of all available evidence to determine whether it is more-likely-than-not that these assets will be realizable. Mattel routinely assesses the positive and negative evidence for this realizability, including the evaluation of sustained profitability and three years of cumulative pretax income for each tax jurisdiction. During the three and nine months ended September 30, 2021, Mattel continued to see improved and sustained profitability, which presents objective positive evidence for the realizability of certain deferred tax assets. As such, based on the overall analysis of the positive and negative evidence in each tax jurisdiction, in the third quarter of 2021 Mattel released the valuation allowances related to U.S. federal deferred tax assets and foreign deferred tax assets, except for certain tax assets that are primarily expected to expire before utilization. Valuation allowance releases in the third quarter of 2021 resulted in recognition of a portion of these deferred tax assets and a benefit to Mattel's provision for income taxes of $492.2 million. In the normal course of business, Mattel is regularly audited by federal, state, and foreign tax authorities. Based on the current status of federal, state, and foreign audits, Mattel believes it is reasonably possible that in the next twelve months, the total unrecognized tax benefits could decrease by approximately $32 million related to the settlement of tax audits and/or the expiration of statutes of limitations. The ultimate settlement of any particular issue with the applicable taxing authority could have a material impact on Mattel's consolidated financial statements. Mattel has recorded a deferred tax liability related to undistributed earnings of certain foreign subsidiaries as of September 30, 2021 and September 30, 2020. In the third quarter of 2021, Mattel recorded an approximately $1 million deferred tax liability on $3.5 billion of undistributed foreign earnings for which deferred taxes had not previously been recorded. For remaining undistributed foreign earnings, Mattel has not provided any deferred taxes with respect to items such as foreign withholding taxes, state income tax or foreign exchange gain or loss that would be due when cash is actually repatriated to the U.S. because those foreign earnings are considered indefinitely reinvested in the business or may be remitted substantially free of any additional local taxes. The determination of any incremental tax liability associated with these earnings is not practicable due to the complexity of local country withholding rules and interactions with tax treaties, foreign exchange considerations, and the diversity of state income tax treatment on actual distribution. Mattel will remit reinvested earnings of its foreign subsidiaries for which a deferred tax liability has been recorded when the Company determines that it is advantageous for business operations or cash management purposes.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Litigation Related to Yellowstone do Brasil Ltda. Yellowstone do Brasil Ltda. (formerly known as Trebbor Informática Ltda.) was a customer of Mattel's subsidiary Mattel do Brasil Ltda. when a commercial dispute arose between Yellowstone and Mattel do Brasil regarding the supply of product and related payment terms. As a consequence of the dispute, in April 1999, Yellowstone filed a declarative action against Mattel do Brasil before the 15 th Civil Court of Curitiba – State of Parana (the "Trial Court"), requesting the annulment of its security bonds and promissory notes given to Mattel do Brasil as well as requesting the Trial Court to find Mattel do Brasil liable for damages incurred as a result of Mattel do Brasil’s alleged abrupt and unreasonable breach of an oral exclusive distribution agreement between the parties relating to the supply and sale of toys in Brazil. Yellowstone's complaint sought alleged loss of profits of approximately $1 million, plus an unspecified amount of damages consisting of: (i) compensation for all investments made by Yellowstone to develop Mattel do Brasil's business; (ii) reimbursement of the amounts paid by Yellowstone to terminate labor and civil contracts in connection with the business; (iii) compensation for alleged unfair competition and for the goodwill of trade; and (iv) compensation for non-pecuniary damages. Mattel do Brasil filed its defenses to these claims and simultaneously presented a counterclaim for unpaid accounts receivable for goods supplied to Yellowstone in the approximate amount of $4 million. During the evidentiary phase a first accounting report was submitted by a court-appointed expert. Such report stated that Yellowstone had invested approximately $3 million in its business. Additionally, the court-appointed expert calculated a loss of profits compensation of approximately $1 million. Mattel do Brasil challenged the report since it was not made based on the official accounting documents of Yellowstone and since the report calculated damages based only on documents unilaterally submitted by Yellowstone. The Trial Court accepted the challenge and ruled that a second accounting examination should take place in the lawsuit. Yellowstone appealed the decision to the Court of Appeals of the State of Parana (the "Appeals Court"), but it was upheld by the Appeals Court. The second court-appointed expert’s report submitted at trial did not assign a value to any of Yellowstone’s claims and found no evidence of causation between Mattel do Brasil's actions and such claims. In January 2010, the Trial Court ruled in favor of Mattel do Brasil and denied all of Yellowstone’s claims based primarily on the lack of any causal connection between the acts of Mattel do Brasil and Yellowstone’s alleged damages. Additionally, the Trial Court upheld Mattel do Brasil's counterclaim and ordered Yellowstone to pay Mattel do Brasil approximately $4 million. The likelihood of Mattel do Brasil recovering this amount was uncertain due to the fact that Yellowstone was declared insolvent and filed for bankruptcy protection. In February 2010, Yellowstone filed a motion seeking clarification of the decision which was denied. In September 2010, Yellowstone filed a further appeal with the Appeals Court. Under Brazilian law, the appeal was de novo and Yellowstone restated all of the arguments it made at the Trial Court level. Yellowstone did not provide any additional information supporting its unspecified alleged damages. The Appeals Court held hearings on the appeal in March and April 2013. On July 26, 2013, the Appeals Court awarded Yellowstone approximately $17 million in damages, plus attorney's fees, as adjusted for inflation and interest. The Appeals Court also awarded Mattel do Brasil approximately $7.5 million on its counterclaim, as adjusted for inflation. On August 2, 2013, Mattel do Brasil filed a motion with the Appeals Court for clarification since the written decision contained clear errors in terms of amounts awarded and interest and inflation adjustments. Mattel do Brasil's motion also asked the Appeals Court to decide whether Yellowstone’s award could be offset by the counterclaim award, despite Yellowstone's status as a bankrupt entity. Yellowstone also filed a motion for clarification on August 5, 2013. A decision on the clarification motions was rendered on November 11, 2014, and the Appeals Court accepted partially the arguments raised by Mattel do Brasil. As a result, the Appeals Court awarded Yellowstone approximately $14.5 million in damages, as adjusted for inflation and interest, plus attorney's fees. The Appeals Court also awarded Mattel do Brasil approximately $7.5 million on its counterclaim, as adjusted for inflation. The decision also recognized the existence of legal rules that support Mattel do Brasil's right to offset its counterclaim award of approximately $7.5 million. Mattel do Brasil filed a new motion for clarification with the Appeals Court on January 21, 2015, due to the incorrect statement made by the reporting judge of the Appeals Court, that the court-appointed expert analyzed the "accounting documents" of Yellowstone. On April 26, 2015, a decision on the motion for clarification was rendered. The Appeals Court ruled that the motion for clarification was denied and imposed a fine on Mattel do Brasil equal to 1% of the value of the claims made for the delay caused by the motion. On July 3, 2015, Mattel do Brasil filed a special appeal to the Superior Court of Justice based upon both procedural and substantive grounds. This special appeal sought to reverse the Appeals Court's decision of July 26, 2013, and to reverse the fine as inappropriate under the law. This special appeal was submitted to the Appeals Court. Yellowstone also filed a special appeal with the Appeals Court in February 2015, which was made available to Mattel do Brasil on October 7, 2015. Yellowstone's special appeal sought to reverse the Appeals Court decision with respect to: (a) the limitation on Yellowstone's loss of profits claim to the amount requested in the complaint, instead of the amount contained in the first court-appointed experts report, and (b) the award of damages to Mattel do Brasil on the counterclaim, since the specific amount was not requested in Mattel do Brasil's counterclaim brief. On October 19, 2015, Mattel do Brasil filed its answer to the special appeal filed by Yellowstone and Yellowstone filed its answer to the special appeal filed by Mattel do Brasil. On April 4, 2016, the Appeals Court rendered a decision denying the admissibility of Mattel's and Yellowstone's special appeals. On May 11, 2016, both Mattel and Yellowstone filed interlocutory appeals. On August 31, 2017, the reporting justice for the Appeals Court denied Yellowstone’s interlocutory appeal. As to Mattel, the reporting justice reversed the fine referenced above that had been previously imposed on Mattel for filing a motion for clarification. However, the reporting justice rejected Mattel’s arguments on the merits of Yellowstone’s damages claims. On September 22, 2017, Mattel filed a further appeal to the full panel of five appellate justices to challenge the merits of Yellowstone's damages claims. Yellowstone did not file a further appeal. In April 2018, Mattel do Brasil entered into a settlement agreement to resolve this matter, but the settlement was later rejected by the courts, subject to a pending appeal by Mattel. On October 2, 2018, the Appeals Court rejected Mattel's merits appeal, and affirmed the prior rulings in favor of Yellowstone. In October 2019, Mattel reached an agreement with Yellowstone's former counsel regarding payment of the attorney's fees portion of the judgment. In November 2019, Yellowstone initiated an action to enforce its judgment against Mattel, but did not account for an offset for Mattel's counterclaim. On January 27, 2020, Mattel obtained an injunction, staying Yellowstone's enforcement action pending resolution of Mattel's appeal to enforce the parties' April 2018 settlement. As of September 30, 2021, Mattel assessed its probable loss related to the Yellowstone matter and has accrued a reserve, which was not material. Litigation Related to the Fisher-Price Rock 'n Play Sleeper A number of putative class action lawsuits are pending against Fisher-Price, Inc. and/or Mattel, Inc. asserting claims for false advertising, negligent product design, breach of warranty, fraud, and other claims in connection with the marketing and sale of the Fisher-Price Rock 'n Play Sleeper (the "Sleeper"). In general, the lawsuits allege that the Sleeper should not have been marketed and sold as safe and fit for prolonged and overnight sleep for infants. The putative class action lawsuits propose nationwide and over 15 statewide consumer classes comprised of those who purchased the Sleeper as marketed as safe for prolonged and overnight sleep. The class actions have been consolidated before a single judge for pre-trial purposes pursuant to the federal courts’ Multi-District Litigation program. Forty additional lawsuits are pending against Fisher-Price, Inc. and Mattel, Inc. alleging that a product defect in the Sleeper caused the fatalities of or injuries to forty-four children. Several lawsuits have been settled and/or dismissed. Additionally, Fisher-Price, Inc. and/or Mattel, Inc. have also received letters from lawyers purporting to represent additional plaintiffs who are threatening to assert similar claims. In addition, a stockholder has filed a derivative action in the Court of Chancery for the State of Delaware (Kumar v. Bradley, et al., filed July 7, 2020) alleging breach of fiduciary duty and unjust enrichment related to the development, marketing, and sale of the Sleeper. The defendants in the derivative action are certain of Mattel's current and former officers and directors. In August 2020, the derivative action was stayed pending further developments in the class action lawsuits. In August 2021, a second similar derivative action was filed in the Court of Chancery for the State of Delaware (Armon v. Bradley, et al., filed August 30, 2021). The lawsuits seek compensatory damages, punitive damages, statutory damages, restitution, disgorgement, attorneys’ fees, costs, interest, declaratory relief, and/or injunctive relief. Mattel believes that the allegations in the lawsuits are without merit and intends to vigorously defend against them. A reasonable estimate of the amount of any possible loss or range of loss cannot be made at this time. Litigation and Investigations Related to Whistleblower Letter In December 2019 and January 2020, two stockholders filed separate complaints styled as class actions against Mattel, Inc. and certain of its former officers (the "Mattel Defendants"), as well as others, in the United States District Court for the Central District of California, that were later amended and consolidated, alleging violations of federal securities laws. The complaints rely on the results of an investigation announced by Mattel in October 2019 regarding allegations in a whistleblower letter and claim that Mattel misled the market in several of its financial statements beginning in the third quarter of 2017. The lawsuits allege that the defendants' conduct caused the plaintiffs and other stockholders to purchase Mattel common stock at artificially inflated prices. The court granted plaintiffs' motion for class certification in September 2021. Following a mediation on October 25, 2021, the parties reached an agreement in principle to settle the class action lawsuits, which is subject to court approval. The Mattel Defendants are paying $86 million in settlement of the claims against them, which will be funded in full by Mattel’s insurers. The settlement does not entail any admission of fault or liability by the Mattel Defendants, which the Mattel Defendants have expressly contested throughout the pendency of the litigation. Mattel’s receivables from its insurers and the offsetting settlement liability have been recorded as of September 30, 2021 within prepaid expenses and other current assets and accrued liabilities, respectively, with no net impact to Mattel’s statement of operations or statement of cash flows. In addition, a stockholder has filed a derivative action in the United States District Court for the District of Delaware (Moher v. Kreiz, et al., filed April 9, 2020) making allegations that are substantially identical to, or are based upon, the allegations of the class action lawsuits. The defendants in the derivative action are certain of Mattel's current and former officers and directors, Mattel, Inc., and PricewaterhouseCoopers LLP. Subsequently, a nearly identical derivative action was filed by a different stockholder against the same defendants. The second lawsuit is styled as an amended complaint and replaces a complaint making unrelated allegations in a previously filed lawsuit already pending in Delaware federal court (Lombardi v. Kreiz, et al., amended complaint filed April 16, 2020). In May 2020, the Moher and Lombardi derivative actions were consolidated and stayed pending further developments in the class action lawsuits. In June 2021, a third similar derivative action was filed in the United States District Court for the District of Delaware (Chagnon v. Kreiz, et al., filed June 22, 2021). Five additional derivative actions asserting similar claims are also pending in the Court of Chancery for the State of Delaware (Owen v. Euteneuer, et al., filed May 12, 2021; Andersen v. Georgiadis, et al., filed May 18, 2021; Armon v. Euteneuer, et al., filed June 29, 2021; Haag v. Euteneuer, et al., filed September 9, 2021; Shumacher v. Kreiz, et al., filed October 19, 2021; and Mizell v. PricewaterhouseCoopers LLP, et al., filed October 29, 2021). An additional derivative action was also filed in United States District Court for the Central District of California (City of Pontiac Police and Fire Retirement System v. PricewaterhouseCoopers LLP, et al. filed October 27, 2021). The lawsuits seek unspecified compensatory and punitive damages, attorneys' fees, expert fees, costs, equitable relief and/or injunctive relief. Mattel believes that the allegations in the lawsuits are without merit and intends to vigorously defend against them. A reasonable estimate of the amount of any possible loss or range of loss cannot be made at this time.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Information	Segment Information Mattel designs, manufactures, and markets a broad variety of toy products worldwide, which are sold to its customers and directly to consumers. Segment Data Mattel's operating segments are: (i) North America, which consists of the U.S. and Canada; (ii) International; and (iii) American Girl. The North America and International segments sell products across categories, although some products are developed and adapted for particular international markets. The following tables present information regarding net sales, operating income (loss), and assets by segment. The corporate and other expense category includes operating costs not allocated to individual segments, including charges related to incentive and share-based compensation, corporate headquarters functions managed on a worldwide basis, the impact of changes in foreign currency exchange rates on intercompany transactions, and certain severance and other restructuring costs. The prior period presentation of operating income (loss) by segment and assets by segment has been conformed to the current period's presentation. It is impracticable for Mattel to present net sales by categories, brands, or products, as trade discounts and other allowances are generally recorded in the financial accounting systems by customer. For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Net Sales by Segment North America $ 1,037,004 $ 926,623 $ 2,077,493 $ 1,647,069 International 673,295 658,396 1,447,547 1,198,817 American Girl 51,994 51,445 137,811 116,784 Net sales $ 1,762,293 $ 1,636,464 $ 3,662,851 $ 2,962,670 For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Operating Income by Segment North America (a) $ 372,015 $ 346,709 $ 646,466 $ 445,395 International (a) 150,598 186,440 237,616 154,996 American Girl (6,535) (9,285) (25,825) (40,272) 516,078 523,864 858,257 560,119 Corporate and other expense (b) (127,004) (144,363) (386,171) (373,468) Operating Income 389,074 379,501 472,086 186,651 Interest expense 52,062 50,415 220,689 149,010 Interest (income) (753) (455) (2,156) (3,564) Other non-operating expense, net 3,901 1,327 3,347 7,012 Income Before Income Taxes $ 333,864 $ 328,214 $ 250,206 $ 34,193 _______________________________________ (a) Segment operating income included severance and restructuring expenses of $0.1 million and $1.9 million, for the three and nine months ended September 30, 2021, respectively, and $0.3 million and $4.8 million, for the three and nine months ended September 30, 2020, respectively, which were allocated to the North America and International segments. (b) Corporate and other expense included severance and restructuring charges of $9.2 million and $25.7 million, for the three and nine months ended September 30, 2021, respectively, and $6.7 million and $30.5 million, for the three and nine months ended September 30, 2020, respectively. Corporate and other expense also included expenses related to inclined sleeper product recall litigation of $2.8 million and $14.9 million for the three and nine months ended September 30, 2021, respectively, and $10.1 million and $19.2 million, for the three and nine months ended September 30, 2020, respectively, and incentive and share-based compensation for all periods presented. Segment assets are comprised of accounts receivable and inventories, net of applicable allowances and reserves. September 30, September 30, December 31, (In thousands) Assets by Segment North America $ 1,073,657 $ 964,198 $ 658,404 International 925,626 821,553 715,043 American Girl 70,356 67,214 40,414 2,069,639 1,852,965 1,413,861 Corporate and other 222,742 152,645 148,579 Accounts receivable and inventories, net $ 2,292,381 $ 2,005,610 $ 1,562,440 Geographic Information The table below presents information by geographic area. Net sales are attributed to countries based on location of the customer. For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Net Sales by Geographic Area North America $ 1,088,998 $ 978,068 $ 2,215,304 $ 1,763,853 International EMEA 420,833 410,210 905,818 735,481 Latin America 180,798 158,982 329,553 267,976 Asia Pacific 71,664 89,204 212,176 195,360 Total International 673,295 658,396 1,447,547 1,198,817 Net sales $ 1,762,293 $ 1,636,464 $ 3,662,851 $ 2,962,670

New Accounting Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 30, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements Recently Adopted Accounting Pronouncements In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for incomes taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify the accounting for other areas of Topic 740 by clarifying and amending existing guidance. The amendments related to changes in ownership of foreign equity method investments or foreign subsidiaries are applied on a modified retrospective basis through a cumulative effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The amendments related to franchise taxes that are partially based on income are applied on either a retrospective basis for all periods presented or a modified retrospective basis through a cumulative effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. All other amendments are applied on a prospective basis. Mattel adopted ASU 2019-12 on January 1, 2021. The adoption of this new accounting standard did not have a material impact on Mattel's consolidated financial statements. Accounting Pronouncements Not Yet Adopted In March 2020 and January 2021, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting and ASU 2021-01, Reference Rate Reform (Topic 848): Scope, respectively. ASU 2020-04 and ASU 2021-01 provide optional expedients and exceptions for applying U.S. GAAP, to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The guidance in ASU 2020- 04 and ASU 2021-01 was effective upon issuance and, once adopted, may be applied prospectively to contract modifications and hedging relationships through December 31, 2022. Mattel is currently evaluating the impact of the adoption of ASU 2020-04 and ASU 2021-01 on its consolidated financial statements.

Revision for Immaterial Misstat

Revision for Immaterial Misstatements	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Revision for Immaterial Misstatements	Revision for Immaterial Misstatements As disclosed in "Note 1 to the Consolidated Financial Statements —Basis of Presentation ," during the quarter ended June 30, 2021, Mattel identified misstatements for inventory tooling expenses that should have first been capitalized into inventory and a misstatement related to the timing of disbursements for certain capital expenditures that resulted in a cash flow misclassification between operating activities and investing activities. Although Mattel concluded that these misstatements were not material, either individually or in aggregate, to its current or previously issued consolidated financial statements, Mattel elected to revise its previously issued consolidated financial statements to correct for these misstatements. In connection with such revision, Mattel is also correcting for other previously identified immaterial misstatements that were previously corrected for as out of period adjustments in the period of identification. Due to certain misstatements originating prior to 2018, the opening retained earnings balance as of January 1, 2018 was understated by $25.1 million, primarily due to the net impact of the tooling misstatement of $37.2 million, partially offset by other previously identified misstatements of $12.1 million. Such previously identified misstatements were previously corrected for as out of period adjustments and included the improper revenue recognition for certain licensing contracts executed prior to 2018 and the understatement of depreciation expense for certain fixed assets. Similarly, the opening retained earnings balance as of January 1, 2020 was understated by $16.9 million, which principally included the net impact of the tooling misstatement and an over-accrual of advertising costs. The revision also reflects the correction of previously identified balance sheet misclassifications, including a misclassification between property, plant and equipment and other assets associated with capitalized implementation costs for cloud computing software. The accompanying consolidated statements of cash flows have been revised to reflect the above items, inclusive of the cash flow misstatement between operating and investing activities related to capitalized implementation costs for cloud computing software and the timing of disbursements for capital expenditures. The revision to the accompanying unaudited consolidated balance sheets, consolidated statements of operations and comprehensive loss, and consolidated statements of cash flows are as follows. There were no changes to the consolidated statements of stockholders’ equity that have not otherwise been reflected in the consolidated balance sheets and consolidated statements of operations and comprehensive income (loss) as detailed in the tables below: As of September 30, 2020 As Previously Reported Adjustments As Revised (In thousands) Consolidated Balance Sheet Inventories $ 663,639 $ 15,843 $ 679,482 Total current assets $ 2,599,863 $ 15,843 $ 2,615,706 Property, plant, and equipment, net $ 497,437 $ (34,916) $ 462,521 Other noncurrent assets $ 828,438 $ 28,469 $ 856,907 Total Assets $ 5,604,095 $ 9,396 $ 5,613,491 Accrued liabilities $ 739,790 $ (9,000) $ 730,790 Total current liabilities $ 1,658,421 $ (9,000) $ 1,649,421 Other noncurrent liabilities $ 436,459 $ 3,100 $ 439,559 Total noncurrent liabilities $ 3,541,167 $ 3,100 $ 3,544,267 Retained earnings $ 1,409,262 $ 15,296 $ 1,424,558 Total stockholders' equity $ 404,507 $ 15,296 $ 419,803 Three Months Ended September 30, 2020 As Previously Reported Adjustments As Revised (In thousands, except per share amounts) Consolidated Statement of Operations and Comprehensive Income Net Sales $ 1,631,691 $ 4,773 $ 1,636,464 Cost of sales $ 799,307 $ 9,429 $ 808,736 Gross profit $ 832,384 $ (4,656) $ 827,728 Operating Income $ 384,157 $ (4,656) $ 379,501 Income Before Income Taxes $ 332,870 $ (4,656) $ 328,214 Net Income $ 315,994 $ (4,656) $ 311,338 Comprehensive Income $ 307,717 $ (4,656) $ 303,061 Net Income Per Common Share - Basic $ 0.91 $ (0.01) $ 0.90 Net Income Per Common Share - Diluted $ 0.91 $ (0.02) $ 0.89 Nine Months Ended September 30, 2020 As Previously Reported Adjustments As Revised (In thousands, except per share amounts) Consolidated Statement of Operations and Comprehensive Loss Net Sales $ 2,957,897 $ 4,773 $ 2,962,670 Cost of sales $ 1,549,482 $ 6,327 $ 1,555,809 Gross Profit $ 1,408,415 $ (1,554) $ 1,406,861 Operating Income $ 188,205 $ (1,554) $ 186,651 Income Before Income Taxes $ 35,747 $ (1,554) $ 34,193 Net Loss $ (3,919) $ (1,554) $ (5,473) Comprehensive Loss $ (120,309) $ (1,554) $ (121,863) Net Loss Per Common Share - Basic $ (0.01) $ (0.01) $ (0.02) Net Loss Per Common Share - Diluted $ (0.01) $ (0.01) $ (0.02) Nine Months Ended September 30, 2020 As Previously Reported Adjustments As Revised (In thousands) Consolidated Statement of Cash Flows Net loss $ (3,919) $ (1,554) $ (5,473) Changes in assets and liabilities: Inventories $ (211,149) $ 6,327 $ (204,822) Prepaid expenses and other current assets $ 18,979 $ (25,700) $ (6,721) Accounts payable, accrued liabilities, and income taxes payable $ (40,082) $ (413) $ (40,495) Other, net $ (1,232) $ 13,307 $ 12,075 Net cash flows used for operating activities $ (433,977) $ (8,033) $ (442,010) Purchases of tools, dies, and molds $ (41,447) $ (924) $ (42,371) Purchases of other property, plant, and equipment $ (49,016) $ 8,957 $ (40,059) Net cash flows used for investing activities $ (115,162) $ 8,033 $ (107,129) As of December 31, 2020 As Previously Reported Adjustments As Revised (In thousands) Consolidated Balance Sheet Inventories $ 514,673 $ 13,801 $ 528,474 Total current assets $ 2,482,890 $ 13,801 $ 2,496,691 Total Assets $ 5,521,089 $ 13,801 $ 5,534,890 Retained earnings $ 1,539,809 $ 13,801 $ 1,553,610 Total stockholders' equity $ 596,343 $ 13,801 $ 610,144

New Accounting Pronouncements (

New Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
Basis of Presentation	The accompanying unaudited consolidated financial statements and related disclosures have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") applicable to interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In the opinion of management, all adjustments, consisting of only those of a normal recurring nature, considered necessary for a fair statement of the financial position and interim results of Mattel, Inc. and its subsidiaries ("Mattel") as of and for the periods presented have been included.
Recently Adopted Accounting Pronouncements and Accounting Pronouncements Not Yet Adopted	Recently Adopted Accounting Pronouncements In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for incomes taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify the accounting for other areas of Topic 740 by clarifying and amending existing guidance. The amendments related to changes in ownership of foreign equity method investments or foreign subsidiaries are applied on a modified retrospective basis through a cumulative effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The amendments related to franchise taxes that are partially based on income are applied on either a retrospective basis for all periods presented or a modified retrospective basis through a cumulative effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. All other amendments are applied on a prospective basis. Mattel adopted ASU 2019-12 on January 1, 2021. The adoption of this new accounting standard did not have a material impact on Mattel's consolidated financial statements. Accounting Pronouncements Not Yet Adopted In March 2020 and January 2021, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting and ASU 2021-01, Reference Rate Reform (Topic 848): Scope, respectively. ASU 2020-04 and ASU 2021-01 provide optional expedients and exceptions for applying U.S. GAAP, to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The guidance in ASU 2020- 04 and ASU 2021-01 was effective upon issuance and, once adopted, may be applied prospectively to contract modifications and hedging relationships through December 31, 2022. Mattel is currently evaluating the impact of the adoption of ASU 2020-04 and ASU 2021-01 on its consolidated financial statements.

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories include the following: September 30, September 30, December 31, (In thousands) Raw materials and work in process $ 183,070 $ 113,248 $ 110,010 Finished goods 671,407 566,234 418,464 $ 854,477 $ 679,482 $ 528,474

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	9 Months Ended
	Sep. 30, 2021
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant, and Equipment	Property, plant, and equipment, net includes the following: September 30, September 30, December 31, (In thousands) Land $ 21,817 $ 24,906 $ 24,913 Buildings 321,478 334,466 335,407 Machinery and equipment 774,792 750,119 772,349 Software 350,592 346,127 344,268 Tools, dies, and molds 607,226 608,301 607,915 Leasehold improvements 118,590 134,696 131,578 2,194,495 2,198,615 2,216,430 Less: accumulated depreciation (1,738,606) (1,736,094) (1,742,636) $ 455,889 $ 462,521 $ 473,794

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	December 31, Dispositions Currency September 30, (In thousands) North America $ 733,401 $ (1,290) $ (455) $ 731,656 International 452,862 (1,056) (1,318) 450,488 American Girl 207,571 — — 207,571 $ 1,393,834 $ (2,346) $ (1,773) $ 1,389,715

Other Noncurrent Assets (Tables

Other Noncurrent Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Noncurrent Assets	Other noncurrent assets include the following: September 30, September 30, December 31, (In thousands) Identifiable intangible assets (net of accumulated amortization of $315.5 million, $277.5 million, and $286.9 million, respectively) $ 487,769 $ 519,861 $ 518,190 Deferred income taxes 579,950 60,850 72,682

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	9 Months Ended
	Sep. 30, 2021
Payables and Accruals [Abstract]
Schedule of Accrued Liabilities	Accrued liabilities include the following: September 30, September 30, December 31, (In thousands) Incentive compensation $ 108,633 $ 97,635 $ 126,601 Advertising and promotion 98,746 89,597 163,181 Current lease liabilities 68,706 85,120 79,540

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt includes the following: September 30, September 30, December 31, (In thousands) 2010 Senior Notes due October 2040 $ 250,000 $ 250,000 $ 250,000 2011 Senior Notes due November 2041 300,000 300,000 300,000 2013 Senior Notes due March 2023 250,000 250,000 250,000 2017/2018 Senior Notes due December 2025 — 1,500,000 1,500,000 2019 Senior Notes due December 2027 600,000 600,000 600,000 2021 Senior Notes due April 2026 600,000 — — 2021 Senior Notes due April 2029 600,000 — — Debt issuance costs and debt discount (30,165) (47,249) (45,336) $ 2,569,835 $ 2,852,751 $ 2,854,664

Other Noncurrent Liabilities (T

Other Noncurrent Liabilities (Tables)	9 Months Ended
	Sep. 30, 2021
Payables and Accruals [Abstract]
Schedule of Other Noncurrent Liabilities	Other noncurrent liabilities include the following: September 30, September 30, December 31, (In thousands) Benefit plan liabilities $ 202,601 $ 203,295 $ 225,957 Deferred income tax liability 38,850 61,870 60,892

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income (Loss)	The following tables present changes in the accumulated balances for each component of other comprehensive income (loss), including other comprehensive income (loss) and reclassifications out of accumulated other comprehensive income (loss) for each period: For the Three Months Ended September 30, 2021 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Loss, Net of Tax, as of June 30, 2021 $ (6,709) $ (4,290) $ (182,285) $ (742,032) $ (935,316) Other comprehensive income (loss) before reclassifications 13,900 (1,320) 56 (29,316) (16,680) Amounts reclassified from accumulated other comprehensive loss (2,223) — 3,568 — 1,345 Net increase (decrease) in other comprehensive income (loss) 11,677 (1,320) 3,624 (29,316) (15,335) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of September 30, 2021 $ 4,968 $ (5,610) $ (178,661) $ (771,348) $ (950,651) For the Nine Months Ended September 30, 2021 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Loss, Net of Tax, as of December 31, 2020 $ (15,369) $ (7,522) $ (186,854) $ (734,831) $ (944,576) Other comprehensive income (loss) before reclassifications 23,230 1,912 (203) (36,517) (11,578) Amounts reclassified from accumulated other comprehensive loss (2,893) — 8,396 — 5,503 Net increase (decrease) in other comprehensive income (loss) 20,337 1,912 8,193 (36,517) (6,075) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of September 30, 2021 $ 4,968 $ (5,610) $ (178,661) $ (771,348) $ (950,651) For the Three Months Ended September 30, 2020 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of June 30, 2020 $ 18,026 $ (8,145) $ (166,279) $ (821,199) $ (977,597) Other comprehensive (loss) income before reclassifications (20,578) 178 (432) 13,032 (7,800) Amounts reclassified from accumulated other comprehensive income (loss) (2,200) — 1,723 — (477) Net (decrease) increase in other comprehensive (loss) income (22,778) 178 1,291 13,032 (8,277) Accumulated Other Comprehensive Loss, Net of Tax, as of September 30, 2020 $ (4,752) $ (7,967) $ (164,988) $ (808,167) $ (985,874) For the Nine Months Ended September 30, 2020 Derivative Available-for-Sale Security Employee Benefit Plans Currency Total (In thousands) Accumulated Other Comprehensive Income (Loss), Net of Tax, as of December 31, 2019 $ 11,041 $ (8,260) $ (169,857) $ (702,408) $ (869,484) Other comprehensive (loss) income before reclassifications (4,556) 293 67 (105,759) (109,955) Amounts reclassified from accumulated other comprehensive income (loss) (11,237) — 4,802 — (6,435) Net (decrease) increase in other comprehensive (loss) income (15,793) 293 4,869 (105,759) (116,390) Accumulated Other Comprehensive Loss, Net of Tax, as of September 30, 2020 $ (4,752) $ (7,967) $ (164,988) $ (808,167) $ (985,874)
Schedule of Consolidated Statement of Operations Line Items Affected by Reclassifications from Accumulated Other Comprehensive Income (Loss)	The following table presents the classification and amount of the reclassifications from accumulated other comprehensive income (loss) to the consolidated statements of operations: For the Three Months Ended September 30, September 30, Statements of Operations (In thousands) Derivative Instruments Gain on foreign currency forward exchange and other contracts $ 2,322 $ 2,143 Cost of sales Tax effect (99) 57 (Benefit) Provision for income taxes $ 2,223 $ 2,200 Net Income (loss) Employee Benefit Plans Amortization of prior service credit (a) $ 455 $ 472 Other non-operating expense, net Recognized actuarial loss (a) (2,830) (2,336) Other non-operating expense, net Settlement loss (a) (3,375) — Other non-operating expense, net (5,750) (1,864) Tax effect 2,182 141 (Benefit) Provision for income taxes $ (3,568) $ (1,723) Net Income (loss) For the Nine Months Ended September 30, September 30, Statements of Operations (In thousands) Derivative Instruments Gain on foreign currency forward exchange and other contracts $ 3,191 $ 11,086 Cost of sales Tax effect (298) 151 (Benefit) Provision for income taxes $ 2,893 $ 11,237 Net Income (loss) Employee Benefit Plans Amortization of prior service credit (a) $ 1,253 $ 1,405 Other non-operating expense, net Recognized actuarial loss (a) (8,394) (7,014) Other non-operating expense, net Settlement loss (a) (3,375) — Other non-operating expense, net (10,516) (5,609) Tax effect 2,120 807 (Benefit) Provision for income taxes $ (8,396) $ (4,802) Net Income (loss) _______________________________________ (a) The amortization of prior service credit, recognized actuarial loss, and settlement loss are included in the computation of net periodic benefit cost. Refer to "Note 16 to the Consolidated Financial Statements—Employee Benefit Plans" for additional information regarding Mattel's net periodic benefit cost.

Foreign Currency Transaction _2

Foreign Currency Transaction Exposure (Tables)	9 Months Ended
	Sep. 30, 2021
Foreign Currency [Abstract]
Schedule of Currency Transaction Exposure	Currency transaction losses included in the consolidated statements of operations are as follows: For the Three Months Ended September 30, September 30, Statements of Operations Classification (In thousands) Currency transaction losses $ (4,855) $ (2,119) Operating income/loss Currency transaction losses (326) (553) Other non-operating income/expense, net Currency transaction losses, net $ (5,181) $ (2,672) For the Nine Months Ended September 30, September 30, Statements of Operations Classification (In thousands) Currency transaction losses $ (7,358) $ (8,037) Operating income/loss Currency transaction losses (5,135) (2,988) Other non-operating income/expense, net Currency transaction losses, net $ (12,493) $ (11,025)

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Assets and Liabilities	The following tables present Mattel's derivative assets and liabilities: Derivative Assets Balance Sheet Classification Fair Value September 30, September 30, December 31, (In thousands) Derivatives designated as hedging instruments Foreign currency forward exchange and other contracts Prepaid expenses and other current assets $ 11,624 $ 5,340 $ 3,641 Foreign currency forward exchange and other contracts Other noncurrent assets 2,775 896 50 Total derivatives designated as hedging instruments $ 14,399 $ 6,236 $ 3,691 Derivatives not designated as hedging instruments Foreign currency forward exchange and other contracts Prepaid expenses and other current assets $ 1,165 $ 2,337 $ 1,982 Foreign currency forward exchange and other contracts Other noncurrent assets — — 38 Total derivatives not designated as hedging instruments $ 1,165 $ 2,337 $ 2,020 $ 15,564 $ 8,573 $ 5,711 Derivative Liabilities Balance Sheet Classification Fair Value September 30, September 30, December 31, (In thousands) Derivatives designated as hedging instruments Foreign currency forward exchange and other contracts Accrued liabilities $ 4,046 $ 9,256 $ 20,330 Foreign currency forward exchange and other contracts Other noncurrent liabilities 7 3,602 4,361 Total derivatives designated as hedging instruments $ 4,053 $ 12,858 $ 24,691 Derivatives not designated as hedging instruments Foreign currency forward exchange and other contracts Accrued liabilities $ 2,247 $ 984 $ 803 Foreign currency forward exchange and other contracts Other noncurrent liabilities — 99 — Total derivatives not designated as hedging instruments $ 2,247 $ 1,083 $ 803 $ 6,300 $ 13,941 $ 25,494
Schedule of Derivatives Designated as Hedging Instruments by Classification and Amount of Gains and Losses	The following tables present the classification and amount of gains and losses, net of tax, from derivatives reported in the consolidated statements of operations: Derivatives Designated As Hedging Instruments For the Three Months Ended September 30, September 30, Statements of (In thousands) Foreign currency forward exchange contracts: Amount of gains (losses) recognized in OCI $ 13,900 $ (20,578) Amount of gains reclassified from accumulated OCI to consolidated statements of operations 2,223 2,200 Cost of sales Derivatives Designated As Hedging Instruments For the Nine Months Ended September 30, September 30, Statements of (In thousands) Foreign currency forward exchange contracts: Amount of gains (losses) recognized in OCI $ 23,230 $ (4,556) Amount of gains reclassified from accumulated OCI to consolidated statements of operations 2,893 11,237 Cost of sales
Schedule of Derivatives Not Designated as Hedging Instruments by Classification and Amount of Gains and Losses	Derivatives Not Designated As Hedging Instruments For the Three Months Ended September 30, September 30, Statements of (In thousands) Amount of net (losses) gains recognized in the Statements of Operations Foreign currency forward exchange and other contract (losses) gains $ (2,900) $ 232 Other non-operating expense, net $ (2,900) $ 232 Derivatives Not Designated As Hedging Instruments For the Nine Months Ended September 30, September 30, Statements of (In thousands) Amount of net losses recognized in the Statements of Operations Foreign currency forward exchange and other contract (losses) $ (3,863) $ (30,015) Other non-operating expense, net Foreign currency forward exchange and other contract gains 639 — Cost of sales $ (3,224) $ (30,015)

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities	Mattel's financial assets and liabilities include the following: September 30, 2021 Level 1 Level 2 Level 3 Total (In thousands) Assets: Foreign currency forward exchange contracts and other (a) $ — $ 15,564 $ — $ 15,564 Available-for-sale (b) 6,180 — — 6,180 Total assets $ 6,180 $ 15,564 $ — $ 21,744 Liabilities: Foreign currency forward exchange contracts and other (a) $ — $ 6,300 $ — $ 6,300 September 30, 2020 Level 1 Level 2 Level 3 Total (In thousands) Assets: Foreign currency forward exchange contracts and other (a) $ — $ 8,573 $ — $ 8,573 Available-for-sale (b) 3,823 — — 3,823 Total assets $ 3,823 $ 8,573 $ — $ 12,396 Liabilities: Foreign currency forward exchange contracts and other (a) $ — $ 13,941 $ — $ 13,941 December 31, 2020 Level 1 Level 2 Level 3 Total (In thousands) Assets: Foreign currency forward exchange contracts and other (a) $ — $ 5,711 $ — $ 5,711 Available-for-sale (b) 4,268 — — 4,268 Total assets $ 4,268 $ 5,711 $ — $ 9,979 Liabilities: Foreign currency forward exchange contracts and other (a) $ — $ 25,494 $ — $ 25,494 ____________________________________________ (a) The fair value of the foreign currency forward exchange contracts and other commodity derivative instruments is based on dealer quotes of market forward rates and reflects the amount that Mattel would receive or pay at their maturity dates for contracts involving the same notional amounts, currencies, and maturity dates. (b) The fair value of the available-for-sale security is based on the quoted price on an active public exchange.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The following table reconciles basic and diluted earnings per common share for the three and nine months ended September 30, 2021 and 2020: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands, except per share amounts) Basic: Net income (loss) $ 795,076 $ 311,338 $ 677,154 $ (5,473) Weighted-average number of common shares 350,424 347,628 349,642 347,206 Basic net income (loss) per common share $ 2.27 $ 0.90 $ 1.94 $ (0.02) Diluted: Net income (loss) $ 795,076 $ 311,338 $ 677,154 $ (5,473) Weighted-average number of common shares 350,424 347,628 349,642 347,206 Dilutive share-based awards (a) 3,754 1,086 4,671 — Weighted-average number of common and potential common shares 354,178 348,714 354,313 347,206 Diluted net income (loss) per common share $ 2.24 $ 0.89 $ 1.91 $ (0.02) _______________________________________ (a) For the three and nine months ended September 30, 2021, share-based awards totaling 12.6 million and 11.7 million, respectively, were excluded from the calculation of diluted net income per common share because their effect would be antidilutive. For the three months ended September 30, 2020, share-based awards totaling 22.3 million were excluded from the calculation of diluted net income per common share because their effect would be antidilutive. Mattel was in a net loss position for the nine months ended September 30, 2020, and, accordingly, all outstanding share-based awards were excluded from the calculation of diluted net loss per common share because their effect would be antidilutive.

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Schedule of Components of Net Periodic Benefit Cost	A summary of the components of net periodic benefit cost for Mattel's defined benefit pension plans is as follows: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) (In thousands) Service cost $ 1,194 $ 1,015 $ 3,780 $ 3,236 Interest cost 2,525 3,729 7,595 11,247 Expected return on plan assets (4,627) (4,899) (13,891) (14,722) Amortization of prior service cost 54 37 275 123 Recognized actuarial loss 2,832 2,355 8,401 7,070 Settlement loss 3,375 — 3,375 — $ 5,353 $ 2,237 $ 9,535 $ 6,954 A summary of the components of net periodic benefit cost for Mattel's postretirement benefit plans is as follows: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) (In thousands) Interest cost $ 19 $ 35 $ 59 $ 104 Amortization of prior service credit (509) (509) (1,528) (1,528) Recognized actuarial gain (2) (19) (7) (56) $ (492) $ (493) $ (1,476) $ (1,480)

Share-Based Payments (Tables)

Share-Based Payments (Tables)	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Stock Option and Restricted Stock Unit Compensation Expense	Compensation expense, included within other selling and administrative expenses in the consolidated statements of operations, related to stock options, RSUs, and performance awards is as follows: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Stock option compensation expense $ 2,407 $ 3,095 $ 7,851 $ 8,602 RSU compensation expense 6,633 7,973 20,664 21,923 Performance award compensation expense 7,172 5,464 17,978 9,421 $ 16,212 $ 16,532 $ 46,493 $ 39,946

Other Selling and Administrat_2

Other Selling and Administrative Expenses (Tables)	9 Months Ended
	Sep. 30, 2021
Other Income and Expenses [Abstract]
Schedule of Other Selling and Administrative Expenses	Other selling and administrative expenses include the following: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Design and development $ 47,739 $ 45,495 $ 138,466 $ 136,609 Identifiable intangible asset amortization 9,514 9,813 28,572 29,465

Restructuring Charges (Tables)

Restructuring Charges (Tables)	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Charges	In connection with the Program, Mattel recorded severance and other restructuring costs in the following cost and expense categories within the consolidated statements of operations: For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Cost of sales (a) $ 148 $ 348 $ 1,930 $ 4,812 Other selling and administrative expenses (b) 9,258 2,259 26,411 6,379 $ 9,406 $ 2,607 $ 28,341 $ 11,191 _______________________________________ (a) Severance and other restructuring costs recorded within cost of sales in the consolidated statements of operations include charges associated with the consolidation of manufacturing facilities. (b) Severance and other restructuring costs recorded within other selling and administrative expenses in the consolidated statements of operations are included in corporate and other expense in "Note 22 to the Consolidated Financial Statements—Segment Information." The following table summarizes Mattel's severance and other restructuring charges activity related to the Program for the nine months ended September 30, 2021: Liability at December 31, 2020 Charges (a) Payments/Utilization Liability at September 30, 2021 (In thousands) Severance $ 5,294 $ 15,277 $ (7,716) $ 12,855 Other restructuring charges 30 13,064 (10,179) 2,915 $ 5,324 $ 28,341 $ (17,895) $ 15,770 _______________________________________ (a) Other restructuring charges consist primarily of charges associated with the consolidation of manufacturing facilities and commercial and corporate functions.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Schedule of Revenues from Segment to Consolidated	The following tables present information regarding net sales, operating income (loss), and assets by segment. The corporate and other expense category includes operating costs not allocated to individual segments, including charges related to incentive and share-based compensation, corporate headquarters functions managed on a worldwide basis, the impact of changes in foreign currency exchange rates on intercompany transactions, and certain severance and other restructuring costs. The prior period presentation of operating income (loss) by segment and assets by segment has been conformed to the current period's presentation. It is impracticable for Mattel to present net sales by categories, brands, or products, as trade discounts and other allowances are generally recorded in the financial accounting systems by customer. For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Net Sales by Segment North America $ 1,037,004 $ 926,623 $ 2,077,493 $ 1,647,069 International 673,295 658,396 1,447,547 1,198,817 American Girl 51,994 51,445 137,811 116,784 Net sales $ 1,762,293 $ 1,636,464 $ 3,662,851 $ 2,962,670 For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Operating Income by Segment North America (a) $ 372,015 $ 346,709 $ 646,466 $ 445,395 International (a) 150,598 186,440 237,616 154,996 American Girl (6,535) (9,285) (25,825) (40,272) 516,078 523,864 858,257 560,119 Corporate and other expense (b) (127,004) (144,363) (386,171) (373,468) Operating Income 389,074 379,501 472,086 186,651 Interest expense 52,062 50,415 220,689 149,010 Interest (income) (753) (455) (2,156) (3,564) Other non-operating expense, net 3,901 1,327 3,347 7,012 Income Before Income Taxes $ 333,864 $ 328,214 $ 250,206 $ 34,193 _______________________________________ (a) Segment operating income included severance and restructuring expenses of $0.1 million and $1.9 million, for the three and nine months ended September 30, 2021, respectively, and $0.3 million and $4.8 million, for the three and nine months ended September 30, 2020, respectively, which were allocated to the North America and International segments. (b) Corporate and other expense included severance and restructuring charges of $9.2 million and $25.7 million, for the three and nine months ended September 30, 2021, respectively, and $6.7 million and $30.5 million, for the three and nine months ended September 30, 2020, respectively. Corporate and other expense also included expenses related to inclined sleeper product recall litigation of $2.8 million and $14.9 million for the three and nine months ended September 30, 2021, respectively, and $10.1 million and $19.2 million, for the three and nine months ended September 30, 2020, respectively, and incentive and share-based compensation for all periods presented.
Schedule of Segment Assets	Segment assets are comprised of accounts receivable and inventories, net of applicable allowances and reserves. September 30, September 30, December 31, (In thousands) Assets by Segment North America $ 1,073,657 $ 964,198 $ 658,404 International 925,626 821,553 715,043 American Girl 70,356 67,214 40,414 2,069,639 1,852,965 1,413,861 Corporate and other 222,742 152,645 148,579 Accounts receivable and inventories, net $ 2,292,381 $ 2,005,610 $ 1,562,440
Schedule of Revenues by Geographic Area	The table below presents information by geographic area. Net sales are attributed to countries based on location of the customer. For the Three Months Ended For the Nine Months Ended September 30, September 30, September 30, September 30, (In thousands) Net Sales by Geographic Area North America $ 1,088,998 $ 978,068 $ 2,215,304 $ 1,763,853 International EMEA 420,833 410,210 905,818 735,481 Latin America 180,798 158,982 329,553 267,976 Asia Pacific 71,664 89,204 212,176 195,360 Total International 673,295 658,396 1,447,547 1,198,817 Net sales $ 1,762,293 $ 1,636,464 $ 3,662,851 $ 2,962,670

Revision for Immaterial Misst_2

Revision for Immaterial Misstatements (Tables)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Error Corrections and Prior Period Adjustments	The revision to the accompanying unaudited consolidated balance sheets, consolidated statements of operations and comprehensive loss, and consolidated statements of cash flows are as follows. There were no changes to the consolidated statements of stockholders’ equity that have not otherwise been reflected in the consolidated balance sheets and consolidated statements of operations and comprehensive income (loss) as detailed in the tables below: As of September 30, 2020 As Previously Reported Adjustments As Revised (In thousands) Consolidated Balance Sheet Inventories $ 663,639 $ 15,843 $ 679,482 Total current assets $ 2,599,863 $ 15,843 $ 2,615,706 Property, plant, and equipment, net $ 497,437 $ (34,916) $ 462,521 Other noncurrent assets $ 828,438 $ 28,469 $ 856,907 Total Assets $ 5,604,095 $ 9,396 $ 5,613,491 Accrued liabilities $ 739,790 $ (9,000) $ 730,790 Total current liabilities $ 1,658,421 $ (9,000) $ 1,649,421 Other noncurrent liabilities $ 436,459 $ 3,100 $ 439,559 Total noncurrent liabilities $ 3,541,167 $ 3,100 $ 3,544,267 Retained earnings $ 1,409,262 $ 15,296 $ 1,424,558 Total stockholders' equity $ 404,507 $ 15,296 $ 419,803 Three Months Ended September 30, 2020 As Previously Reported Adjustments As Revised (In thousands, except per share amounts) Consolidated Statement of Operations and Comprehensive Income Net Sales $ 1,631,691 $ 4,773 $ 1,636,464 Cost of sales $ 799,307 $ 9,429 $ 808,736 Gross profit $ 832,384 $ (4,656) $ 827,728 Operating Income $ 384,157 $ (4,656) $ 379,501 Income Before Income Taxes $ 332,870 $ (4,656) $ 328,214 Net Income $ 315,994 $ (4,656) $ 311,338 Comprehensive Income $ 307,717 $ (4,656) $ 303,061 Net Income Per Common Share - Basic $ 0.91 $ (0.01) $ 0.90 Net Income Per Common Share - Diluted $ 0.91 $ (0.02) $ 0.89 Nine Months Ended September 30, 2020 As Previously Reported Adjustments As Revised (In thousands, except per share amounts) Consolidated Statement of Operations and Comprehensive Loss Net Sales $ 2,957,897 $ 4,773 $ 2,962,670 Cost of sales $ 1,549,482 $ 6,327 $ 1,555,809 Gross Profit $ 1,408,415 $ (1,554) $ 1,406,861 Operating Income $ 188,205 $ (1,554) $ 186,651 Income Before Income Taxes $ 35,747 $ (1,554) $ 34,193 Net Loss $ (3,919) $ (1,554) $ (5,473) Comprehensive Loss $ (120,309) $ (1,554) $ (121,863) Net Loss Per Common Share - Basic $ (0.01) $ (0.01) $ (0.02) Net Loss Per Common Share - Diluted $ (0.01) $ (0.01) $ (0.02) Nine Months Ended September 30, 2020 As Previously Reported Adjustments As Revised (In thousands) Consolidated Statement of Cash Flows Net loss $ (3,919) $ (1,554) $ (5,473) Changes in assets and liabilities: Inventories $ (211,149) $ 6,327 $ (204,822) Prepaid expenses and other current assets $ 18,979 $ (25,700) $ (6,721) Accounts payable, accrued liabilities, and income taxes payable $ (40,082) $ (413) $ (40,495) Other, net $ (1,232) $ 13,307 $ 12,075 Net cash flows used for operating activities $ (433,977) $ (8,033) $ (442,010) Purchases of tools, dies, and molds $ (41,447) $ (924) $ (42,371) Purchases of other property, plant, and equipment $ (49,016) $ 8,957 $ (40,059) Net cash flows used for investing activities $ (115,162) $ 8,033 $ (107,129) As of December 31, 2020 As Previously Reported Adjustments As Revised (In thousands) Consolidated Balance Sheet Inventories $ 514,673 $ 13,801 $ 528,474 Total current assets $ 2,482,890 $ 13,801 $ 2,496,691 Total Assets $ 5,521,089 $ 13,801 $ 5,534,890 Retained earnings $ 1,539,809 $ 13,801 $ 1,553,610 Total stockholders' equity $ 596,343 $ 13,801 $ 610,144

Accounts Receivable (Details)

Accounts Receivable (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Receivables [Abstract]
Accounts receivable, allowances for credit losses	$ 11.3	$ 15.9	$ 18.5

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Inventory Disclosure [Abstract]
Raw materials and work in process	$ 183,070	$ 110,010	$ 113,248
Finished goods	671,407	418,464	566,234
Inventories	$ 854,477	$ 528,474	$ 679,482

Property, Plant, and Equipmen_2

Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		$ 2,194,495	$ 2,216,430	$ 2,198,615
Less: accumulated depreciation		(1,738,606)	(1,742,636)	(1,736,094)
Property, plant, and equipment, net		455,889	473,794	462,521
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		21,817	24,913	24,906
Buildings
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		321,478	335,407	334,466
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		774,792	772,349	750,119
Software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		350,592	344,268	346,127
Tools, dies, and molds
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		607,226	607,915	608,301
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross		$ 118,590	$ 131,578	$ 134,696
Land and building | Mexico
Property, Plant and Equipment [Line Items]
Gain on disposal of property, plant, and equipment	$ 15,800

Goodwill (Details)

Goodwill (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2021
Goodwill [Line Items]
Goodwill, impairment loss	$ 0
Goodwill [Roll Forward]
Balance at beginning of period			$ 1,393,834,000
Dispositions		$ (2,000,000)	(2,346,000)
Currency Exchange Rate Impact			(1,773,000)
Balance at end of period	1,389,715,000		1,389,715,000
North America
Goodwill [Roll Forward]
Balance at beginning of period			733,401,000
Dispositions			(1,290,000)
Currency Exchange Rate Impact			(455,000)
Balance at end of period	731,656,000		731,656,000
International
Goodwill [Roll Forward]
Balance at beginning of period			452,862,000
Dispositions			(1,056,000)
Currency Exchange Rate Impact			(1,318,000)
Balance at end of period	450,488,000		450,488,000
American Girl
Goodwill [Roll Forward]
Balance at beginning of period			207,571,000
Dispositions			0
Currency Exchange Rate Impact			0
Balance at end of period	$ 207,571,000		$ 207,571,000

Other Noncurrent Assets (Detail

Other Noncurrent Assets (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Identifiable intangible assets (net of accumulated amortization of $315.5 million, $277.5 million, and $286.9 million, respectively)	$ 487,769,000	$ 519,861,000	$ 487,769,000	$ 519,861,000	$ 518,190,000
Deferred income taxes	579,950,000	60,850,000	579,950,000	60,850,000	72,682,000
Identifiable intangible assets, accumulated amortization	315,500,000	277,500,000	315,500,000	277,500,000	$ 286,900,000
Impairment of intangible assets	0	0	0	0
Discrete tax benefit	$ 465,300,000	$ (1,700,000)	$ 445,800,000	$ (11,400,000)

Accrued Liabilities (Details)

Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Payables and Accruals [Abstract]
Incentive compensation	$ 108,633	$ 126,601	$ 97,635
Advertising and promotion	98,746	163,181	89,597
Current lease liabilities	$ 68,706	$ 79,540	$ 85,120
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities	Accrued liabilities	Accrued liabilities

Seasonal Financing (Details)

Seasonal Financing (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Mar. 19, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 20, 2017
Debt Instrument [Line Items]
Short-term borrowings	$ 128,000,000		$ 969,000	$ 400,000,000
Credit Agreement
Debt Instrument [Line Items]
Outstanding letters of credit	10,000,000		11,000,000	13,000,000
Revolving Credit Facility | Credit Agreement
Debt Instrument [Line Items]
Aggregate commitment under the credit facility		$ 1,400,000,000			$ 1,600,000,000
Short-term borrowings	$ 128,000,000		$ 0	$ 400,000,000
Revolving Credit Facility | Credit Agreement | Minimum | LIBOR
Debt Instrument [Line Items]
Interest rate margin for loans (as a percent)	1.25%
Revolving Credit Facility | Credit Agreement | Minimum | Base Rate
Debt Instrument [Line Items]
Interest rate margin for loans (as a percent)	0.25%
Revolving Credit Facility | Credit Agreement | Maximum | LIBOR
Debt Instrument [Line Items]
Interest rate margin for loans (as a percent)	1.75%
Revolving Credit Facility | Credit Agreement | Maximum | Base Rate
Debt Instrument [Line Items]
Interest rate margin for loans (as a percent)	0.75%
Revolving Credit Facility, Asset Based | Credit Agreement
Debt Instrument [Line Items]
Aggregate commitment under the credit facility	$ 1,110,000,000
Revolving Credit Facility, Secured | Credit Agreement
Debt Instrument [Line Items]
Aggregate commitment under the credit facility	$ 294,000,000

Long-Term Debt - Schedule of De

Long-Term Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Debt Instrument [Line Items]
Long-term debt	$ 2,600,000	$ 2,900,000	$ 2,900,000
Debt issuance costs and debt discount	(30,165)	(45,336)	(47,249)
Long-term debt, net	2,569,835	2,854,664	2,852,751
Senior Notes | 2010 Senior Notes due October 2040
Debt Instrument [Line Items]
Long-term debt	250,000	250,000	250,000
Senior Notes | 2011 Senior Notes due November 2041
Debt Instrument [Line Items]
Long-term debt	300,000	300,000	300,000
Senior Notes | 2013 Senior Notes due March 2023
Debt Instrument [Line Items]
Long-term debt	250,000	250,000	250,000
Senior Notes | 2017/2018 Senior Notes due December 2025
Debt Instrument [Line Items]
Long-term debt	0	1,500,000	1,500,000
Senior Notes | 2019 Senior Notes due December 2027
Debt Instrument [Line Items]
Long-term debt	600,000	600,000	600,000
Senior Notes | 2021 Senior Notes due April 2026
Debt Instrument [Line Items]
Long-term debt	600,000	0	0
Senior Notes | 2021 Senior Notes due April 2029
Debt Instrument [Line Items]
Long-term debt	$ 600,000	$ 0	$ 0

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) - USD ($)	Jul. 01, 2021	Mar. 19, 2021	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Redemption of debt			$ 1,575,997,000	$ 0
Loss on extinguishment of long-term borrowings			$ 101,695,000	$ 0
Senior Notes | 2021 Senior Notes due April 2026
Debt Instrument [Line Items]
Principal of debt instrument		$ 600,000,000
Interest rate		3.375%
Senior Notes | 2021 Senior Notes due April 2029
Debt Instrument [Line Items]
Principal of debt instrument		$ 600,000,000
Interest rate		3.75%
Senior Notes | 2017/2018 Senior Notes due December 2025
Debt Instrument [Line Items]
Interest rate		6.75%
Redemption of debt	$ 275,000,000	$ 1,225,000,000
Loss on extinguishment of long-term borrowings	18,500,000	83,200,000
Debt prepayment premium costs	14,000,000	62,000,000
Write-off of unamortized debt issuance costs	$ 4,500,000	$ 21,200,000

Other Noncurrent Liabilities (D

Other Noncurrent Liabilities (Details) - Other noncurrent liabilities - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Other Commitments [Line Items]
Benefit plan liabilities	$ 202,601	$ 225,957	$ 203,295
Deferred income tax liability	$ 38,850	$ 60,892	$ 61,870

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Balances (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 527,719	$ 490,565	$ 610,144	$ 106,100	$ 179,772	$ 508,564	$ 610,144	$ 508,564
Other comprehensive income (loss) before reclassifications	(16,680)			(7,800)			(11,578)	(109,955)
Amounts reclassified from accumulated other comprehensive income (loss)	1,345			(477)			5,503	(6,435)
Other Comprehensive Loss, Net of Tax	(15,335)	25,710	(16,450)	(8,277)	28,286	(136,399)	(6,075)	(116,390)
Ending balance	1,313,678	527,719	490,565	419,803	106,100	179,772	1,313,678	419,803
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(935,316)	(961,026)	(944,576)	(977,597)	(1,005,883)	(869,484)	(944,576)	(869,484)
Other Comprehensive Loss, Net of Tax	(15,335)	25,710	(16,450)	(8,277)	28,286	(136,399)
Ending balance	(950,651)	(935,316)	(961,026)	(985,874)	(977,597)	(1,005,883)	(950,651)	(985,874)
Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6,709)		(15,369)	18,026		11,041	(15,369)	11,041
Other comprehensive income (loss) before reclassifications	13,900			(20,578)			23,230	(4,556)
Amounts reclassified from accumulated other comprehensive income (loss)	(2,223)			(2,200)			(2,893)	(11,237)
Other Comprehensive Loss, Net of Tax	11,677			(22,778)			20,337	(15,793)
Ending balance	4,968	(6,709)		(4,752)	18,026		4,968	(4,752)
Available-for-Sale Security
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4,290)		(7,522)	(8,145)		(8,260)	(7,522)	(8,260)
Other comprehensive income (loss) before reclassifications	(1,320)			178			1,912	293
Amounts reclassified from accumulated other comprehensive income (loss)	0			0			0	0
Other Comprehensive Loss, Net of Tax	(1,320)			178			1,912	293
Ending balance	(5,610)	(4,290)		(7,967)	(8,145)		(5,610)	(7,967)
Employee  Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(182,285)		(186,854)	(166,279)		(169,857)	(186,854)	(169,857)
Other comprehensive income (loss) before reclassifications	56			(432)			(203)	67
Amounts reclassified from accumulated other comprehensive income (loss)	3,568			1,723			8,396	4,802
Other Comprehensive Loss, Net of Tax	3,624			1,291			8,193	4,869
Ending balance	(178,661)	(182,285)		(164,988)	(166,279)		(178,661)	(164,988)
Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(742,032)		$ (734,831)	(821,199)		$ (702,408)	(734,831)	(702,408)
Other comprehensive income (loss) before reclassifications	(29,316)			13,032			(36,517)	(105,759)
Amounts reclassified from accumulated other comprehensive income (loss)	0			0			0	0
Other Comprehensive Loss, Net of Tax	(29,316)			13,032			(36,517)	(105,759)
Ending balance	$ (771,348)	$ (742,032)		$ (808,167)	$ (821,199)		$ (771,348)	$ (808,167)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Reclassification from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
(Benefit) Provision for income taxes	$ (456,754)			$ 22,080			$ (415,805)	$ 46,811
Other non-operating expense, net	3,901			1,327			3,347	7,012
Loss before income taxes	(333,864)			(328,214)			(250,206)	(34,193)
Net Income (Loss)	(795,076)	$ 5,537	$ 112,385	(311,338)	$ 111,109	$ 205,702	(677,154)	5,473
Reclassification Out of Accumulated Other Comprehensive Income (Loss) | Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of sales	2,322			2,143			3,191	11,086
(Benefit) Provision for income taxes	(99)			57			(298)	151
Net Income (Loss)	2,223			2,200			2,893	11,237
Reclassification Out of Accumulated Other Comprehensive Income (Loss) | Employee Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
(Benefit) Provision for income taxes	2,182			141			2,120	807
Loss before income taxes	(5,750)			(1,864)			(10,516)	(5,609)
Net Income (Loss)	(3,568)			(1,723)			(8,396)	(4,802)
Reclassification Out of Accumulated Other Comprehensive Income (Loss) | Amortization of prior service credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Other non-operating expense, net	455			472			1,253	1,405
Reclassification Out of Accumulated Other Comprehensive Income (Loss) | Recognized actuarial loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Other non-operating expense, net	(2,830)			(2,336)			(8,394)	(7,014)
Reclassification Out of Accumulated Other Comprehensive Income (Loss) | Settlement loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Other non-operating expense, net	$ (3,375)			$ 0			$ (3,375)	$ 0

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Income (Loss) - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Currency translation adjustments loss	$ (15,335)	$ 25,710	$ (16,450)	$ (8,277)	$ 28,286	$ (136,399)	$ (6,075)	$ (116,390)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Currency translation adjustments loss	$ (29,316)			$ 13,032			$ (36,517)	$ (105,759)

Foreign Currency Transaction _3

Foreign Currency Transaction Exposure (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Currency Transaction Gains (Losses) [Line Items]
Currency transaction losses, net	$ (5,181)	$ (2,672)	$ (12,493)	$ (11,025)
Operating income/loss
Currency Transaction Gains (Losses) [Line Items]
Currency transaction losses, net	(4,855)	(2,119)	(7,358)	(8,037)
Other non-operating income/expense, net
Currency Transaction Gains (Losses) [Line Items]
Currency transaction losses, net	$ (326)	$ (553)	$ (5,135)	$ (2,988)

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - Foreign currency forward exchange and other contracts - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 861.2	$ 855	$ 903.1
Maximum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative term of contracts	18 months

Derivative Instruments - Assets

Derivative Instruments - Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	$ 15,564	$ 5,711	$ 8,573
Derivative liabilities, fair value	6,300	25,494	13,941
Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	14,399	3,691	6,236
Derivative liabilities, fair value	4,053	24,691	12,858
Derivatives designated as hedging instruments | Foreign currency forward exchange and other contracts | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	11,624	3,641	5,340
Derivatives designated as hedging instruments | Foreign currency forward exchange and other contracts | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	2,775	50	896
Derivatives designated as hedging instruments | Foreign currency forward exchange and other contracts | Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities, fair value	4,046	20,330	9,256
Derivatives designated as hedging instruments | Foreign currency forward exchange and other contracts | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities, fair value	7	4,361	3,602
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	1,165	2,020	2,337
Derivatives not designated as hedging instruments | Foreign currency forward exchange and other contracts
Derivatives, Fair Value [Line Items]
Derivative liabilities, fair value	2,247	803	1,083
Derivatives not designated as hedging instruments | Foreign currency forward exchange and other contracts | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	1,165	1,982	2,337
Derivatives not designated as hedging instruments | Foreign currency forward exchange and other contracts | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	0	38	0
Derivatives not designated as hedging instruments | Foreign currency forward exchange and other contracts | Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities, fair value	2,247	803	984
Derivatives not designated as hedging instruments | Foreign currency forward exchange and other contracts | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities, fair value	$ 0	$ 0	$ 99

Derivative Instruments - Design

Derivative Instruments - Designated as Hedging Instruments by Classification and Amount of Gains and Losses (Details) - Derivatives Designated As Hedging Instruments - Foreign Exchange Forward - Cost of sales - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gains (losses) recognized in OCI	$ 13,900	$ (20,578)	$ 23,230	$ (4,556)
Amount of gains reclassified from accumulated OCI to consolidated statements of operations	$ 2,223	$ 2,200	$ 2,893	$ 11,237

Derivative Instruments - Not De

Derivative Instruments - Not Designated as Hedging Instruments by Classification and Amount of Gains and Losses (Details) - Derivatives Designated As Hedging Instruments - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (losses) gains recognized in the Statements of Operations	$ (2,900)	$ 232	$ (3,224)	$ (30,015)
Foreign Exchange Forward | Other non-operating expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (losses) gains recognized in the Statements of Operations	$ (2,900)	$ 232	(3,863)	(30,015)
Foreign Exchange Forward | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (losses) gains recognized in the Statements of Operations			$ 639	$ 0

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Assets:
Foreign currency forward exchange contracts and other	$ 15,564	$ 5,711	$ 8,573
Available-for-sale security	6,180	4,268	3,823
Total assets	21,744	9,979	12,396
Liabilities:
Foreign currency forward exchange contracts and other	6,300	25,494	13,941
Level 1
Assets:
Foreign currency forward exchange contracts and other	0	0	0
Available-for-sale security	6,180	4,268	3,823
Total assets	6,180	4,268	3,823
Liabilities:
Foreign currency forward exchange contracts and other	0	0	0
Level 2
Assets:
Foreign currency forward exchange contracts and other	15,564	5,711	8,573
Available-for-sale security	0	0	0
Total assets	15,564	5,711	8,573
Liabilities:
Foreign currency forward exchange contracts and other	6,300	25,494	13,941
Level 3
Assets:
Foreign currency forward exchange contracts and other	0	0	0
Available-for-sale security	0	0	0
Total assets	0	0	0
Liabilities:
Foreign currency forward exchange contracts and other	$ 0	$ 0	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Estimated fair value of long-term debt	$ 2,830	$ 3,110	$ 2,980
Carrying value of long-term debt	$ 2,600	$ 2,900	$ 2,900

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Basic:
Net Income (Loss)	$ 795,076	$ (5,537)	$ (112,385)	$ 311,338	$ (111,109)	$ (205,702)	$ 677,154	$ (5,473)
Weighted average number of common shares (in shares)	350,424			347,628			349,642	347,206
Basic net loss per common share (USD per share)	$ 2.27			$ 0.90			$ 1.94	$ (0.02)
Diluted:
Net Income (Loss)	$ 795,076	$ (5,537)	$ (112,385)	$ 311,338	$ (111,109)	$ (205,702)	$ 677,154	$ (5,473)
Weighted average number of common shares (in shares)	350,424			347,628			349,642	347,206
Dilutive share-based awards (in shares)	3,754			1,086			4,671	0
Weighted average number of common and potential common shares (in shares)	354,178			348,714			354,313	347,206
Diluted net loss per common share (USD per share)	$ 2.24			$ 0.89			$ 1.91	$ (0.02)
Antidilutive securities excluded from calculation of earnings per share (in shares)	12,600			22,300			11,700

Employee Benefit Plans - Compon

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,194	$ 1,015	$ 3,780	$ 3,236
Interest cost	2,525	3,729	7,595	11,247
Expected return on plan assets	(4,627)	(4,899)	(13,891)	(14,722)
Amortization of prior service cost (credit)	54	37	275	123
Recognized actuarial loss (gain)	2,832	2,355	8,401	7,070
Settlement loss	3,375	0	3,375	0
Net periodic benefit cost (credit)	5,353	2,237	9,535	6,954
Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	19	35	59	104
Amortization of prior service cost (credit)	(509)	(509)	(1,528)	(1,528)
Recognized actuarial loss (gain)	(2)	(19)	(7)	(56)
Net periodic benefit cost (credit)	$ (492)	$ (493)	$ (1,476)	$ (1,480)

Employee Benefit Plans - Narrat

Employee Benefit Plans - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)
Retirement Benefits [Abstract]
Cash contributions made during the period	$ 10
Expected additional cash contributions	$ 12

Share-Based Payments - Narrativ

Share-Based Payments - Narrative (Details)	9 Months Ended
	Sep. 30, 2021USD ($)incentiveProgram	Sep. 30, 2020USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of incentive programs | incentiveProgram	3
Proceeds from exercise of stock options	$ 5,500,000	$ 0
Stock options, RSUs, and performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expense related to unvested share-based payments	$ 105,800,000
Weighted-average period for unrecognized compensation expense expected to be recognized	2 years 3 months 18 days
Stock options, RSUs, and performance shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General vesting period	3 years
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of stock option expiration from date of grant	10 years

Share-Based Payments - Compensa

Share-Based Payments - Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 16,212	$ 16,532	$ 46,493	$ 39,946
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	2,407	3,095	7,851	8,602
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	6,633	7,973	20,664	21,923
Performance awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 7,172	$ 5,464	$ 17,978	$ 9,421

Other Selling and Administrat_3

Other Selling and Administrative Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Design and development	$ 47,739	$ 45,495	$ 138,466	$ 136,609
Identifiable intangible asset amortization	$ 9,514	$ 9,813	$ 28,572	$ 29,465

Restructuring Charges - Schedul

Restructuring Charges - Schedule of Capital Light Restructuring Charges (Details) - Optimizing for Growth (formerly Capital Light Initiative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 9,406	$ 2,607	$ 28,341	$ 11,191
Cost of sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges	148	348	1,930	4,812
Other selling and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 9,258	$ 2,259	$ 26,411	$ 6,379

Restructuring Charges - Severan

Restructuring Charges - Severance and Other Restructuring Charges Activity (Details) - Optimizing for Growth (formerly Capital Light Initiative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020			$ 5,324
Charges	$ 9,406	$ 2,607	28,341	$ 11,191
Payments/Utilization			(17,895)
Liability at September 30, 2021	15,770		15,770
Severance
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020			5,294
Charges			15,277
Payments/Utilization			(7,716)
Liability at September 30, 2021	12,855		12,855
Other restructuring charges
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020			30
Charges			13,064
Payments/Utilization			(10,179)
Liability at September 30, 2021	$ 2,915		$ 2,915

Restructuring Charges - Narrati

Restructuring Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2020	Sep. 30, 2021
Mexico | Land and building
Restructuring Cost and Reserve [Line Items]
Gain on disposal of property, plant, and equipment	$ 15.8
Optimizing for Growth (formerly Capital Light Initiative)
Restructuring Cost and Reserve [Line Items]
Severance and other restructuring charges incurred to date			$ 79
Restructuring and related cost, cost incurred to date, non-cash charges			20
Optimizing for Growth (formerly Capital Light Initiative) | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs			140
Expected non-cash restructuring costs			40
Optimizing for Growth (formerly Capital Light Initiative) | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs			165
Expected non-cash restructuring costs			$ 45
Severance | Other Cost Savings Actions
Restructuring Cost and Reserve [Line Items]
Severance charges		$ 18

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
(Benefit) Provision for income taxes	$ (456,754)	$ 22,080	$ (415,805)	$ 46,811
Discrete tax (benefit) expense	(465,300)	$ 1,700	(445,800)	$ 11,400
Release of valuation allowances on deferred tax assets	492,200
Reasonably possible changes to unrecognized tax benefits related to settlement of tax audits and/or expiration of statutes of limitations within the next twelve months	32,000		32,000
Deferred tax liabilities, undistributed foreign earnings	1,000		1,000
Undistributed earnings of foreign subsidiaries	$ 3,500,000		$ 3,500,000

Contingencies (Details)

Contingencies (Details) $ in Millions	Oct. 25, 2021USD ($)	Apr. 26, 2015	Jan. 31, 2010USD ($)	Apr. 30, 1999USD ($)	Jan. 31, 2020stockholder	Sep. 30, 2021childlawsuitclass	Nov. 11, 2014USD ($)	Jul. 26, 2013USD ($)
Yellowstone
Loss Contingencies [Line Items]
Alleged loss of profits				$ 1
Unpaid accounts receivable				4
Alleged business investments				3
Initial estimate of loss of profits				$ 1
Court awarded damages from counterclaim			$ 4
Damages awarded, including attorney fees, inflation and interest								$ 17
Counter claim awarded, including inflation							$ 7.5	$ 7.5
Damages award including inflation and interest							$ 14.5
Fine on claims (as a percent)		1.00%
Sleeper
Loss Contingencies [Line Items]
Number of additional lawsuits pending | lawsuit						40
Number of children with injuries or fatalities related to lawsuits | child						44
Whistleblower Letter
Loss Contingencies [Line Items]
Number of additional lawsuits pending | lawsuit						5
Number of stockholders who filed complaints | stockholder					2
Whistleblower Letter | Subsequent Event
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to other party	$ 86
Minimum | Sleeper
Loss Contingencies [Line Items]
Number of consumer classes | class						15

Segment Information - Revenues

Segment Information - Revenues and Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 1,762,293	$ 1,636,464	$ 3,662,851	$ 2,962,670
Operating Income	389,074	379,501	472,086	186,651
Interest expense	52,062	50,415	220,689	149,010
Interest (income)	(753)	(455)	(2,156)	(3,564)
Other non-operating expense, net	3,901	1,327	3,347	7,012
Income Before Income Taxes	333,864	328,214	250,206	34,193
Operating Segments
Segment Reporting Information [Line Items]
Operating Income	516,078	523,864	858,257	560,119
Operating Segments | North America and International
Segment Reporting Information [Line Items]
Restructuring charges	100	300	1,900	4,800
Operating Segments | North America
Segment Reporting Information [Line Items]
Revenues	1,037,004	926,623	2,077,493	1,647,069
Operating Income	372,015	346,709	646,466	445,395
Operating Segments | International
Segment Reporting Information [Line Items]
Revenues	673,295	658,396	1,447,547	1,198,817
Operating Income	150,598	186,440	237,616	154,996
Operating Segments | American Girl
Segment Reporting Information [Line Items]
Revenues	51,994	51,445	137,811	116,784
Operating Income	(6,535)	(9,285)	(25,825)	(40,272)
Corporate and other expense
Segment Reporting Information [Line Items]
Operating Income	(127,004)	(144,363)	(386,171)	(373,468)
Restructuring charges	9,200	6,700	25,700	30,500
Total product recall charges	$ 2,800	$ 10,100	$ 14,900	$ 19,200

Segment Information - Assets (D

Segment Information - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	$ 2,292,381	$ 1,562,440	$ 2,005,610
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	2,069,639	1,413,861	1,852,965
Operating Segments | North America
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	1,073,657	658,404	964,198
Operating Segments | International
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	925,626	715,043	821,553
Operating Segments | American Girl
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	70,356	40,414	67,214
Corporate and other expense
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	$ 222,742	$ 148,579	$ 152,645

Segment Information - Revenue_2

Segment Information - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 1,762,293	$ 1,636,464	$ 3,662,851	$ 2,962,670
Operating Segments | North America
Segment Reporting Information [Line Items]
Revenues	1,037,004	926,623	2,077,493	1,647,069
Operating Segments | North America | North America
Segment Reporting Information [Line Items]
Revenues	1,088,998	978,068	2,215,304	1,763,853
Operating Segments | International
Segment Reporting Information [Line Items]
Revenues	673,295	658,396	1,447,547	1,198,817
Operating Segments | International | EMEA
Segment Reporting Information [Line Items]
Revenues	420,833	410,210	905,818	735,481
Operating Segments | International | Latin America
Segment Reporting Information [Line Items]
Revenues	180,798	158,982	329,553	267,976
Operating Segments | International | Asia Pacific
Segment Reporting Information [Line Items]
Revenues	$ 71,664	$ 89,204	$ 212,176	$ 195,360

Revision for Immaterial Misst_3

Revision for Immaterial Misstatements - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total stockholders' equity	$ 1,313,678	$ 527,719	$ 490,565	$ 610,144	$ 419,803	$ 106,100	$ 179,772		$ 508,564
Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total stockholders' equity	$ 2,230,764	$ 1,435,688	$ 1,441,225	1,553,610	1,424,558	$ 1,113,220	$ 1,224,329		$ 1,430,031
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total stockholders' equity				$ 13,801	$ 15,296
Adjustments | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total stockholders' equity								$ 16,900		$ 25,100
Adjustments | Tooling Misstatement | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total stockholders' equity										37,200
Adjustments | Other Misstatements | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total stockholders' equity										$ 12,100

Revision for Immaterial Misst_4

Revision for Immaterial Misstatements - Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Inventories	$ 854,477			$ 528,474	$ 679,482
Total current assets	2,715,151			2,496,691	2,615,706
Property, plant, and equipment, net	455,889			473,794	462,521
Other noncurrent assets	1,376,409			878,970	856,907
Total assets	6,263,035			5,534,890	5,613,491
Accrued liabilities	919,047			831,922	730,790
Total current liabilities	1,686,836			1,355,379	1,649,421
Other noncurrent liabilities	404,454			465,350	439,559
Total noncurrent liabilities	3,262,521			3,569,367	3,544,267
Retained earnings	2,230,764			1,553,610	1,424,558
Total stockholders' equity	$ 1,313,678	$ 527,719	$ 490,565	610,144	419,803	$ 106,100	$ 179,772	$ 508,564
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Inventories				514,673	663,639
Total current assets				2,482,890	2,599,863
Property, plant, and equipment, net					497,437
Other noncurrent assets					828,438
Total assets				5,521,089	5,604,095
Accrued liabilities					739,790
Total current liabilities					1,658,421
Other noncurrent liabilities					436,459
Total noncurrent liabilities					3,541,167
Retained earnings				1,539,809	1,409,262
Total stockholders' equity				596,343	404,507
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Inventories				13,801	15,843
Total current assets				13,801	15,843
Property, plant, and equipment, net					(34,916)
Other noncurrent assets					28,469
Total assets				13,801	9,396
Accrued liabilities					(9,000)
Total current liabilities					(9,000)
Other noncurrent liabilities					3,100
Total noncurrent liabilities					3,100
Retained earnings				13,801	15,296
Total stockholders' equity				$ 13,801	$ 15,296

Revision for Immaterial Misst_5

Revision for Immaterial Misstatements - Statement of Operations and Comprehensive Loss (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net Sales	$ 1,762,293			$ 1,636,464			$ 3,662,851	$ 2,962,670
Cost of sales	919,754			808,736			1,920,470	1,555,809
Gross profit	842,539			827,728			1,742,381	1,406,861
Operating Income	389,074			379,501			472,086	186,651
Income Before Income Taxes	333,864			328,214			250,206	34,193
Net income (loss)	795,076	$ (5,537)	$ (112,385)	311,338	$ (111,109)	$ (205,702)	677,154	(5,473)
Comprehensive income (loss)	$ 779,741			$ 303,061			$ 671,079	$ (121,863)
Net Income (Loss) Per Common Share - Basic (USD per share)	$ 2.27			$ 0.90			$ 1.94	$ (0.02)
Net Income (Loss) Per Common Share - Diluted (USD per share)	$ 2.24			$ 0.89			$ 1.91	$ (0.02)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net Sales				$ 1,631,691				$ 2,957,897
Cost of sales				799,307				1,549,482
Gross profit				832,384				1,408,415
Operating Income				384,157				188,205
Income Before Income Taxes				332,870				35,747
Net income (loss)				315,994				(3,919)
Comprehensive income (loss)				$ 307,717				$ (120,309)
Net Income (Loss) Per Common Share - Basic (USD per share)				$ 0.91				$ (0.01)
Net Income (Loss) Per Common Share - Diluted (USD per share)				$ 0.91				$ (0.01)
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net Sales				$ 4,773				$ 4,773
Cost of sales				9,429				6,327
Gross profit				(4,656)				(1,554)
Operating Income				(4,656)				(1,554)
Income Before Income Taxes				(4,656)				(1,554)
Net income (loss)				(4,656)				(1,554)
Comprehensive income (loss)				$ (4,656)				$ (1,554)
Net Income (Loss) Per Common Share - Basic (USD per share)				$ (0.01)				$ (0.01)
Net Income (Loss) Per Common Share - Diluted (USD per share)				$ (0.02)				$ (0.01)

Revision for Immaterial Misst_6

Revision for Immaterial Misstatements - Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)	$ 795,076	$ (5,537)	$ (112,385)	$ 311,338	$ (111,109)	$ (205,702)	$ 677,154	$ (5,473)
Changes in assets and liabilities:
Inventories							(393,349)	(204,822)
Prepaid expenses and other current assets							(11,252)	(6,721)
Accounts payable, accrued liabilities, and income taxes payable							161,884	(40,495)
Other, net							(7,823)	12,075
Net cash flows used for operating activities							(255,876)	(442,010)
Purchases of tools, dies, and molds							(53,678)	(42,371)
Purchases of other property, plant, and equipment							(61,531)	(40,059)
Net cash flows used for investing activities							$ (71,480)	(107,129)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)				315,994				(3,919)
Changes in assets and liabilities:
Inventories								(211,149)
Prepaid expenses and other current assets								18,979
Accounts payable, accrued liabilities, and income taxes payable								(40,082)
Other, net								(1,232)
Net cash flows used for operating activities								(433,977)
Purchases of tools, dies, and molds								(41,447)
Purchases of other property, plant, and equipment								(49,016)
Net cash flows used for investing activities								(115,162)
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)				$ (4,656)				(1,554)
Changes in assets and liabilities:
Inventories								6,327
Prepaid expenses and other current assets								(25,700)
Accounts payable, accrued liabilities, and income taxes payable								(413)
Other, net								13,307
Net cash flows used for operating activities								(8,033)
Purchases of tools, dies, and molds								(924)
Purchases of other property, plant, and equipment								8,957
Net cash flows used for investing activities								$ 8,033