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Segment Information - Worldwide Revenues by Brand Category (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | $ 1,437,451 | $ 1,560,983 | $ 2,986,571 | $ 3,271,078
Operating Segments |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 1,606,636 | 1,710,164 | 3,360,767 | 3,593,308
Operating Segments | Barbie |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 374,707 | 329,609 | 698,131 | 605,175
Operating Segments | Hot Wheels |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 234,993 | 249,984 | 547,239 | 514,036
Operating Segments | Fisher-Price and Thomas & Friends |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 409,497 | 463,689 | 833,468 | 944,680
Operating Segments | American Girl |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 64,257 | 93,760 | 176,902 | 246,865
Operating Segments | Toy Box |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 523,182 | 573,122 | 1,105,027 | 1,282,552
Operating Segments | Product |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | 1,606,636 | 1,710,164 | 3,360,767 | 3,593,308
Segment Reconciling Items |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Revenues | $ (169,185) | $ (149,181) | $ (374,196) | $ (322,230)

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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