Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Notes) (Details)

v3.6.0.2
Summary of Significant Accounting Policies (Notes) (Details)
 1 Months Ended 12 Months Ended
Nov. 19, 2015
USD ($)
Aug. 31, 2016
person
May 31, 2016
person
Dec. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
contract
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 15, 2014
USD ($)
Jul. 09, 2014
Feb. 01, 2014
Convertible Notes                    
General and Administrative Expenses         $ 115,435,000 $ 72,900,000 $ 54,321,000      
Payment of term notes         $ 8,000,000 10,000,000        
Ownership interest (as a percent)         50.00%          
Derivative contracts outstanding | contract         0          
Net loss attributable to noncontrolling interest             $ (195,000)      
General and administration                    
Convertible Notes                    
Restructuring charges         $ 596,000          
Executive Officer                    
Convertible Notes                    
Number of persons received restricted stock unit awards | person   4 3              
Scenario, Adjustment                    
Convertible Notes                    
Restructuring charges           (673,000)        
General and Administrative Expenses           673,000        
Convertible Notes                    
Convertible Notes                    
Face amount       $ 172,500,000 $ 172,500,000 172,500,000   $ 172,500,000    
Face amount               $ 172,500,000    
Interest rate (as a percent)         1.75%     1.75%    
Term Notes                    
Convertible Notes                    
Face amount $ 160,000,000     150,000,000 $ 142,000,000 150,000,000        
Face amount 160,000,000                  
Payment of term notes       $ 18,000,000            
Periodic payment $ 2,000,000                  
Credit Agreement                    
Convertible Notes                    
Debt Instrument Covenant Prepayment Term Following Current Fiscal Year End         90 days          
Debt Instrument, Debt Default, Amount         $ 31,862,000          
Debt Instrument Covenant Leverage Ratio         2.00%          
ERS                    
Convertible Notes                    
Ownership interest (as a percent)                   64.50%
Net loss attributable to noncontrolling interest         $ 0 $ 0        
Klein | ERS                    
Convertible Notes                    
Ownership interest (as a percent)         80.80%       11.70%