Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Amended and Restated Credit Agreement (Details)

v3.6.0.2
Long-Term Debt - Amended and Restated Credit Agreement (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Jul. 30, 2013
Sep. 30, 2016
Sep. 30, 2016
Dec. 31, 2016
May 27, 2016
Dec. 31, 2015
Jan. 26, 2015
Jan. 22, 2014
Debt Instrument [Line Items]                
Long-term Debt       $ 585,000,000   $ 585,000,000    
Debt issuance costs   $ 2,200,000 $ 1,400,000          
Debtor-in-Possession Financing, Letters of Credit Outstanding       9,800,000        
6.75 % Senior Notes [Member]                
Debt Instrument [Line Items]                
Debt instrument fixed interest rate               6.75%
Debt issuance costs     $ 7,600,000          
Term Loan [Member]                
Debt Instrument [Line Items]                
Line of Credit, Current             $ 30,000,000  
Unsecured Debt [Member]                
Debt Instrument [Line Items]                
Increase in the amount of term loan or revolving credit facility $ 45,000,000              
2015 Secured Credit Agreement [Member]                
Debt Instrument [Line Items]                
Senior secured credit facility         $ 100,000,000   $ 200,000,000  
Debt issuance costs       300,000        
Deferred acquisition costs       $ 1,200,000