Segment Information - Performance Measures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, Net	$ 96,802	$ 115,897	$ 325,250	$ 360,849
Adjusted OIBDA	7,074	9,311	22,291	26,763
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, Net	2,677,707	2,053,650	7,005,985	5,334,599
Adjusted OIBDA	670,047	464,420	1,192,736	815,348
Eliminate Expedia
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, Net	(2,580,905)	(1,937,753)	(6,680,735)	(4,973,750)
Adjusted OIBDA	(662,973)	(455,109)	(1,170,445)	(788,585)
Bodybuilding | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, Net	96,802	115,897	325,250	360,849
Adjusted OIBDA	7,074	9,311	22,291	26,763
Expedia | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, Net	2,580,905	1,937,753	6,680,735	4,973,750
Adjusted OIBDA	$ 662,973	$ 455,109	$ 1,170,445	$ 788,585