Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Long-Term Debt - Amended and Restated Credit Agreement (Details) - USD ($)
9 Months Ended 12 Months Ended
Jul. 30, 2013
Sep. 30, 2015
Dec. 31, 2015
Jan. 26, 2015
Dec. 31, 2014
Jan. 22, 2014
Dec. 14, 2012
Debt Instrument [Line Items]              
Long-term Debt     $ 585,000,000   $ 615,000,000    
Debt issuance costs   $ 2,800,000          
Debtor-in-Possession Financing, Letters of Credit Outstanding     12,500,000        
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]              
Long-term Debt             $ 50,000,000
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       $ 200,000,000.0      
Debt issuance costs     2,000,000        
Deferred acquisition costs     $ 2,400,000        
Variation in applicable rate for LIBOR Rate Loan   2.50%          
Line Of Credit Facility Basis Spread On Lender Defined Offered Rate Maximum   4.00%          
Variation in applicable rate for Base Rate Loan   1.50%          
Variation in applicable rate for Base Rate Loan   3.00%          
2012 Secured Credit Agreement [Member]              
Debt Instrument [Line Items]              
Senior secured credit facility             $ 80,000,000
Debt issuance costs   $ 800,000