Write-downs, Reserves and Recoveries, Net (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended
	Apr. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Write-downs, reserves and recoveries, net		$ 247		$ 2,579	$ 3,391	$ 3,224
Impairment of goodwill					3,319	0
Impairment of other indefinite-lived intangible asset					$ 4,966	$ 0
Losses associated with property lease abandonment charges				$ 2,900
Springfield, Massachusetts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposition of assets	$ 8,400
Central City, Colorado
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of land and disposal of slots and other equipment			$ 2,600
Retama Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of goodwill		3,319
Impairment of other indefinite-lived intangible asset		$ 4,966