Segment Information - Revenues by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 1,473,705	$ 1,481,557	$ 860,063	$ 689,246	$ 1,524,281	$ 1,437,451	$ 844,706	$ 708,372	$ 4,504,571	$ 4,514,810	$ 4,881,493
Operating income (loss)	67,580	150,087	(51,416)	(127,011)	105,591	121,874	(185,233)	(276,581)	39,240	(234,349)	(335,698)
Interest expense									201,044	181,886	105,214
Interest (income)									(6,166)	(6,463)	(7,777)
Other non-operating expense, net									2,650	7,331	68,110
Loss Before Income Taxes	9,182	101,955	(95,824)	(173,601)	54,274	72,592	(230,064)	(313,905)	(158,288)	(417,103)	(501,245)
Expense for incentive compensation plans									119,500	84,100	19,400
Share-based compensation expense									55,968	48,915	67,119
Other selling and administrative expenses	$ 418,414	$ 365,961	$ 308,311	$ 297,336	$ 398,253	$ 325,874	$ 360,000	$ 424,617	1,390,022	1,508,744	1,517,983
Accounting Standards Update 2017-07
Segment Reporting Information [Line Items]
Other selling and administrative expenses											(3,400)
Other non-operating expense											3,400
Operating Segments
Segment Reporting Information [Line Items]
Revenues									5,064,574	5,075,529	5,514,125
Operating income (loss)									465,099	216,958	23,420
Operating Segments | North America
Segment Reporting Information [Line Items]
Revenues									2,432,299	2,422,108	2,536,654
Operating income (loss)									357,039	220,769	102,710
Operating Segments | International
Segment Reporting Information [Line Items]
Operating income (loss)									166,873	13,915	(6,322)
Operating Segments | American Girl
Segment Reporting Information [Line Items]
Revenues									268,489	341,191	473,944
Operating income (loss)									(58,813)	(17,726)	(72,968)
Sales adjustments
Segment Reporting Information [Line Items]
Revenues									(560,003)	(560,719)	(632,632)
Corporate and Other Expense
Segment Reporting Information [Line Items]
Operating income (loss)									(425,859)	(451,307)	(359,118)
Expense for incentive compensation plans									119,500	84,100	19,400
Severance and other termination-related costs									40,500	104,100	65,100
Share-based compensation expense									$ 56,000	$ 48,900	$ 67,100