Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

v3.3.0.814
Long-Term Debt (Details) - USD ($)
3 Months Ended 9 Months Ended
Apr. 01, 2015
Feb. 02, 2015
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Debt Instrument [Line Items]            
Loan fees and other expenses         $ 13,979,000 $ 0
Loss on extinguishment of debt     $ 0 $ 0 27,700,000 0
Payment of debt call premiums         $ 20,244,000 $ 0
Medium-term Notes [Member] | Amended Senior Credit Facility [Member]            
Debt Instrument [Line Items]            
Debt face amount   $ 275,000,000.0        
Percentage of principal payable   0.25%        
Loan fees and other expenses   $ 6,200,000        
Medium-term Notes [Member] | Amended Senior Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt Instrument [Line Items]            
Spread on variable rate   3.25%        
Interest rate floor   0.75%        
Unsecured Debt [Member] | Searchlight ALX, LP Promissory Note [Member]            
Debt Instrument [Line Items]            
Debt face amount   $ 75,000,000.0        
Debt stated percentage   7.50%        
Redemption price (percentage)         50.00%  
Debt issuance price, percent   100.00%        
Unamortized discount   $ 21,700,000        
Senior Notes [Member] | Senior Notes 6.875 Percent due 2025 [Member]            
Debt Instrument [Line Items]            
Debt face amount $ 450,000,000          
Debt stated percentage 6.875%          
Debt issuance price, percent 99.105%          
Repayments of debt $ 425,000,000          
Purchase price of debt in occurance of change of control, percentage of principal amount 101.00%          
Purchase price in event of an asset sale, percentage of principal 100.00%          
Issuance cost $ 7,900,000          
Senior Notes [Member] | Senior Notes Due 2021            
Debt Instrument [Line Items]            
Debt stated percentage 6.75%          
Senior Notes [Member] | Senior Notes Due 2019            
Debt Instrument [Line Items]            
Loss on extinguishment of debt         $ 27,700,000  
Payment of debt call premiums         20,200,000  
Write off of deferred debt issuance costs         5,400,000  
Write off of debt discount         $ 2,100,000  
Common Stock - Class A [Member] | Stock Appreciation Rights (SARs) [Member]            
Debt Instrument [Line Items]            
Stock Appreciation Rights   3,000,000        
Stock Appreciation Rights issued for interest capitalization (percent)   4.00%        
Exercise price of stock appreciation rights (per share)   $ 13.00        
Common Stock - Class A [Member] | Stock Appreciation Rights (SARs) [Member] | Searchlight ALX, LP Promissory Note [Member]            
Debt Instrument [Line Items]            
Stock Appreciation Rights   3,000,000        
Exercise price of stock appreciation rights (per share)   $ 13.00