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Segment Information - Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	$ 2,496,140	$ 1,729,015	$ 2,439,354
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	2,402,194	1,598,711	2,283,229
Operating Segments | North America
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	1,060,312	677,203	1,050,120
Operating Segments | International
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	1,144,772	766,584	1,049,008
Operating Segments | American Girl
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	197,110	154,924	184,101
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Accounts receivable and inventories, net	$ 93,946	$ 130,304	$ 156,125

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