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Long-Term Debt - 8.750% Senior Notes - Additional Information (Details) - USD ($)
Apr. 15, 2016
Apr. 04, 2014
Jun. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]        
8.750% Senior Notes     $ 151,848,000 $ 151,848,000
8.750% Senior Notes Due April 15, 2019        
Debt Instrument [Line Items]        
Debt instrument interest rate     8.75%  
Debt instrument repurchase amount     $ 68,200,000  
8.750% Senior Notes Due April 15, 2019 | LRAI        
Debt Instrument [Line Items]        
Debt instrument face amount   $ 220,000,000    
Debt instrument interest rate   8.75%   8.75%
Debt instrument maturity date   Apr. 15, 2019    
Debt instrument repurchase amount       $ 68,200,000
8.750% Senior Notes       $ 151,800,000
Redemption price, percentage 101.00%