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Segment Information - Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017
--- | --- | --- | ---
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Accounts receivable and inventories, net | $ 2,038,944 | $ 1,729,314 | $ 2,496,140
Operating Segments |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Accounts receivable and inventories, net | 1,915,191 | 1,621,601 | 2,402,194
Operating Segments | North America |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Accounts receivable and inventories, net | 912,008 | 692,232 | 1,060,312
Operating Segments | International |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Accounts receivable and inventories, net | 917,668 | 829,185 | 1,144,772
Operating Segments | American Girl |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Accounts receivable and inventories, net | 85,515 | 100,184 | 197,110
Corporate and Other |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Accounts receivable and inventories, net | $ 123,753 | $ 107,713 | $ 93,946

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