Segment Information - Total Asset Information For Segments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 2,298,990		$ 2,362,504
Capital expenditures	22,681	$ 38,475
Big Fish Games [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,032,810		1,009,668
Capital expenditures	1,924	0
Casino Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	616,015		621,240
Capital expenditures	11,421	4,119
TwinSpires [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	188,194		182,322
Capital expenditures	1,997	3,174
Racing Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	426,176		518,517
Capital expenditures	6,582	27,915
Other Investments Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	35,795		$ 30,757
Capital expenditures	$ 757	$ 3,267