Management Fee Revenue (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Proceeds from repayment of Native American development costs   $ 66,048,000 $ 0 $ 195,779,000
Reimbursement Revenue   7,500,000 12,600,000  
MPM Enterprises, LLC [Member]        
Ownership percentage, parent   50.00%    
Equity Method Investment, Ownership Percentage   50.00%    
Gun Lake Tribe [Member]        
Management agreement, term   7 years    
Project management fee (percentage)   30.00%    
Gun Lake Tribe [Member] | MPM Enterprises, LLC [Member]        
Management fee revenue   33,300,000 31,800,000 29,300,000
Gun Lake Tribe [Member] | Kalamazoo, MI [Member]        
Distance from major city   27    
Gun Lake Tribe [Member] | Grand Rapids, MI [Member]        
Distance from major city   25    
Barley's [Member]        
Project management fee (percentage)   10.00%    
The Greens [Member]        
Project management fee (percentage)   10.00%    
Wildfire Lanes [Member]        
Project management fee (percentage)   10.00%    
Federated Indians of Graton Rancheria [Member]        
Reimbursable advances for Native American Development 63,900,000   63,900,000  
Management agreement, term   7 years    
Management fee revenue 14,700,000      
Property Development Fee, Value     8,200,000  
Property Development Fee, Percent Fee     2.00%  
Proceeds from repayment of Native American development costs       194,200,000
Federated Indians of Graton Rancheria [Member] | SC Sonoma Management LLC [Member]        
Management fee revenue 6,500,000 27,300,000    
Federated Indians of Graton Rancheria [Member] | San Francisco, California [Member]        
Distance from major city   43    
Management Agreement, Year One [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   24.00%    
Management Agreement, Year Two [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   24.00%    
Management Agreement, Year Three [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   24.00%    
Management Agreement, Year Four [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   24.00%    
Management Agreement, Year Five [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   27.00%    
Management Agreement, Year Six [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   27.00%    
Management Agreement, Year Seven [Member] | Federated Indians of Graton Rancheria [Member]        
Project management fee (percentage)   27.00%    
Barley's [Member]        
Equity Method Investment, Ownership Percentage   50.00%    
The Greens [Member]        
Equity Method Investment, Ownership Percentage   50.00%    
Wildfire Lanes [Member]        
Equity Method Investment, Ownership Percentage   50.00%    
1st Tier [Member] | Gun Lake Tribe [Member]        
Management fee shared with parent (percentage)   50.00%    
Management fee revenue   24,000,000    
2nd Tier [Member] | Gun Lake Tribe [Member]        
Management fee shared with parent (percentage)   83.00%    
Management fee revenue   24,000,000    
3rd Tier [Member] | Gun Lake Tribe [Member]        
Management fee shared with parent (percentage)   93.00%    
Management fee revenue   $ 48,000,000