Segment Information - Total Asset Information For Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 2,302,370		$ 2,362,504
Capital expenditures	9,784	20,169
Big Fish Games [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,018,086		1,009,668
Capital expenditures	1,163	0
Casino Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	616,201		621,240
Capital expenditures	4,261	2,250
TwinSpires [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	183,175		182,322
Capital expenditures	943	1,592
Racing Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	455,079		518,517
Capital expenditures	3,264	14,037
Other Investments Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	29,829		30,757
Capital expenditures	$ 153	$ 2,290