Segment Information (Details) (USD $) In Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010		Dec. 31, 2010
Revenues:
Revenues	$ 299,085		$ 273,569		$ 586,819		$ 536,128
Adjusted EBITDA [Abstract]
Adjusted EBITDA	69,000	[1]	49,400	[1]	130,800	[1]	103,400	[1]
Other benefits (costs) [Abstract]
Depreciation and amortization	(26,508)		(29,345)		(53,207)		(55,234)
Pre-opening and development costs	(2,590)		(2,086)		(4,826)		(10,970)
Share-based compensation expense	(2,300)		(2,100)		3,744		3,523
Impairment of indefinite-lived intangible assets	0		(11,500)		0		(11,500)
Impairment of land and construction costs	0		(18,391)		0		(18,391)
Write-downs, reserves and recoveries, net	(5,935)		(1,657)		(6,627)		4,378
Interest Expense	(25,651)		(27,417)		(51,841)		(48,369)
Loss on early extinguishment of debt	0		(434)		0		(1,852)
Other non-operating income	72		132		164		159
Income tax expense (benefit)	(632)		2,731		(700)		2,051
Income (loss) from continuing operations	5,534		(40,677)		10,134		(39,775)
Payments to Acquire Property, Plant, and Equipment					79,043		93,417
Assets	1,884,272				1,884,272				1,883,794
L Auberge du Lac [Member]
Revenues:
Revenues	96,100		83,700		184,928		170,000
Adjusted EBITDA [Abstract]
Adjusted EBITDA	30,585	[1]	22,100	[1]	56,155	[1]	46,119	[1]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					7,800		7,500
Assets	314,600				314,600				314,800
St Louis [Member]
Revenues:
Revenues	96,600	[2]	85,400	[2]	190,055	[2]	157,200	[2]
Adjusted EBITDA [Abstract]
Adjusted EBITDA	22,650	[1],[2]	14,200	[1],[2]	42,713	[1],[2]	29,656	[1],[2]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					7,600	[2]	58,800	[2]
Assets	784,500	[2]			784,500	[2]			790,000	[2]
Boomtown New Orleans [Member]
Revenues:
Revenues	33,400		34,200		70,374		69,000
Adjusted EBITDA [Abstract]
Adjusted EBITDA	11,440	[1]	10,400	[1]	24,496	[1]	21,042	[1]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					1,600		1,400
Assets	62,100				62,100				64,000
Balterra Casino Resort [Member]
Revenues:
Revenues	38,500		38,800		75,282		75,200
Adjusted EBITDA [Abstract]
Adjusted EBITDA	8,027	[1]	7,700	[1]	14,447	[1]	14,170	[1]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					1,100		3,000
Assets	184,100				184,100				188,600
Boomtown Bossier City [Member]
Revenues:
Revenues	21,300		21,100		44,320		45,500
Adjusted EBITDA [Abstract]
Adjusted EBITDA	4,700	[1]	4,700	[1]	10,433	[1]	11,212	[1]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					1,600		2,800
Assets	87,000				87,000				88,900
Boomtown Reno [Member]
Revenues:
Revenues	9,700		10,400		17,259		19,200
Adjusted EBITDA [Abstract]
Adjusted EBITDA	200	[1]	500	[1]	(515)	[1]	(468)	[1]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					100		200
Assets	38,800				38,800				40,500
River Downs [Member]
Revenues:
Revenues	3,500		0		4,533		0
Adjusted EBITDA [Abstract]
Adjusted EBITDA	(700)	[1]	0	[1]	(950)	[1]	0	[1]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					100	[3]	0	[3]
Assets	45,400				45,400				0
Total Allocated Segments [Member]
Adjusted EBITDA [Abstract]
Adjusted EBITDA	76,900	[1]	59,600	[1]	146,700	[1]	121,700	[1]
Corporate Elimination [Member]
Adjusted EBITDA [Abstract]
Adjusted EBITDA	(7,900)	[1],[4]	(10,200)	[1],[4]	(15,863)	[1],[4]	(18,257)	[1],[4]
Unallocated Amount to Segment [Member]
Other benefits (costs) [Abstract]
Payments to Acquire Property, Plant, and Equipment					59,200	[5]	19,700	[5]
Assets	367,800				367,800				397,000
Sugarcane Bay [Member]
Other benefits (costs) [Abstract]
Pre-opening and development costs	0	[6]	(600)	[6]	(200)	[6]	(1,100)	[6]
Baton Rouge [Member]
Other benefits (costs) [Abstract]
Pre-opening and development costs	(1,000)		(200)		(2,000)		(400)
Payments to Acquire Property, Plant, and Equipment					51,100		4,000
River City [Member]
Other benefits (costs) [Abstract]
Pre-opening and development costs	0		(1,200)		(100)		(9,400)
Other [Member]
Other benefits (costs) [Abstract]
Pre-opening and development costs	$ (1,600)		$ (100)		$ (2,500)		$ (100)

[1] We define Adjusted EBITDA for each segment as earnings before interest income and expense, income taxes, depreciation, amortization, pre-opening and development expenses, non-cash share-based compensation, asset impairment costs, write-downs, reserves, recoveries, gain (loss) on sale of certain assets, loss on early extinguishment of debt, loss on sale of discontinued operations, and discontinued operations. We use Adjusted EBITDA to compare operating results among our properties and between accounting periods.

[2] Our St. Louis segment consists of Lumière Place (which includes the Lumière Place Casino, the Pinnacle-owned Four Seasons Hotel St. Louis and HoteLumière) and River City.

[3] Capital expenditures for our River Downs segment includes items purchased since the initial acquisition of the racetrack in January 2011 and exclude the initial purchase price.

[4] Corporate expenses represent unallocated payroll, professional fees, travel expenses and other general and administrative expenses not directly related to our casino and hotel operations.

[5] Includes capital expenditures for our various development projects not yet reflected as operating segments, including the following: For the six months ended June 30, 2011 2010 (in millions)Baton Rouge51.1 4.0

[6] We canceled our Sugarcane Bay project in April 2010. The continuing costs relate to the cost to terminate the project and costs to restore the site to its original state. In April 2011, we agreed to resolve our litigation in regards to issues related to the cancellation of our Sugarcane Bay project. We expect to incur no additional material cash costs as a result of the settlement.