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Significant Accounting Policies Significant Accounting Policies (Details)
12 Months Ended
Dec. 31, 2015
USD ($)
Nov. 02, 2015
USD ($)
Dec. 31, 2014
USD ($)
Significant Accounting Policies [Line Items]      
Senior Notes $ 120,000,000    
Loans Payable 120,000,000 $ 120,000,000  
Variable Interest Entity, Primary Beneficiary [Member]      
Significant Accounting Policies [Line Items]      
Consolidated assets 31,100,000   $ 10,487,000
Consolidated liabilities $ 10,914,000   $ 7,487,000
LP Units [Member]      
Significant Accounting Policies [Line Items]      
Limited Partnership Units Convertible Conversion Ratio 1    
Minimum [Member]      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 3 years    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year    
Maximum [Member]      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 7 years    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years