Summary of Significant Accounting Policies (Pending Acquisition) (Details) (USD $)				12 Months Ended							12 Months Ended									12 Months Ended
	Dec. 31, 2012 Peninsula Gaming	Dec. 31, 2012 Scenario, Forecast Peninsula Gaming	May 16, 2012 Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 Subsidiary, HoldCo Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 Senior Notes Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 Senior Notes Subsidiary, Merger Sub Scenario, Forecast Peninsula Gaming	Nov. 02, 2011 Base Rate	Dec. 31, 2012 New Credit Facility Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Loans Payable Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Bank Credit Facility Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Bank Credit Facility Subsidiary, Merger Sub Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Letter of Credit Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Base Rate Loans Payable Subsidiary, Merger Sub Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Base Rate Bank Credit Facility Subsidiary, Merger Sub Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Base Rate One-month Eurodollar Bank Credit Facility Subsidiary, Merger Sub Scenario, Forecast	Dec. 31, 2012 New Credit Facility Base Rate Federal Funds Rate Bank Credit Facility Subsidiary, Merger Sub Scenario, Forecast	Dec. 31, 2012 New Credit Facility Eurodollar Rate Loans Payable Subsidiary, Merger Sub Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 New Credit Facility Eurodollar Rate Bank Credit Facility Subsidiary, Merger Sub Scenario, Forecast Peninsula Gaming	Dec. 31, 2012 Minimum New Credit Facility Loans Payable Subsidiary, Merger Sub	Dec. 31, 2012 Kansas Star Subsidiary, HoldCo Scenario, Forecast Peninsula Gaming
Business Acquisition [Line Items]
Purchase price		$ 1,450,000,000
Business acquisition, cash paid	200,000,000
Business acquisition, liabilities incurred, excluding contingent consideration				144,000,000
Amount of debt securities issued			1,100,000,000
Face amount					350,000,000	350,000,000		875,000,000	825,000,000
Business acquisition, earnout threshold, EBITDA of certain properties				105,000,000																105,000,000
Business combination, contingent consideration, earnout multiple																				7.5
Interest rate, basis spread on fixed portion of reference rate															1.00%	0.50%
Applicable margin							3.75%						3.50%	3.00%			4.50%	4.00%
Percentage bearing variable interest, percentage rate																			1.25%
Commitment fee percentage on unused portion of credit facility											0.50%
Line of credit, maximum borrowing capacity										50,000,000
Amount outstanding												8,900,000
Remaining borrowing capacity										$ 41,100,000
Debt instrument, stated interest rate					8.375%
Issue price, percent of principal					100.00%
Redemption price, % of principal					100.00%