Annual report pursuant to Section 13 and 15(d)

Senior Unsecured Notes (Narrative) (Details)

v3.6.0.2
Senior Unsecured Notes (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 28, 2016
Sep. 19, 2016
Dec. 31, 2016
Dec. 31, 2014
Nov. 29, 2016
Dec. 31, 2015
Debt Instrument [Line Items]            
Principal balance outstanding     $ 2,340,009,000     $ 2,145,393,000
Repayments of senior unsecured notes     448,339,000 $ 350,000,000    
Loss from extinguishment of debt, net     $ 30,540,000 $ 582,000    
7.750% Senior Unsecured Notes, Due August 15, 2019 [Member]            
Debt Instrument [Line Items]            
Face amount of senior unsecured notes   $ 114,900,000        
Redemption percentage of notes 115.314% 115.977%        
Interest rate of senior unsecured notes     7.75%      
Maturity date of the senior unsecured notes     Aug. 15, 2019      
Repayments of senior unsecured notes $ 159,700,000 $ 134,100,000        
Redeemed cash for outstanding principal amount         $ 135,100,000  
Loss from extinguishment of debt, net     $ 40,700,000      
Unsecured Note [Member]            
Debt Instrument [Line Items]            
Principal balance outstanding     $ 825,000,000     1,275,000,000
Unsecured Note [Member] | 7.750% Senior Unsecured Notes, Due August 15, 2019 [Member]            
Debt Instrument [Line Items]            
Principal balance outstanding [1]           $ 250,000,000
[1] During the year ended December 31, 2016, the Company purchased and redeemed these notes. See summaries above.