Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies (Departure Of Executive Officer) (Narrative) (Details)

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Commitments And Contingencies (Departure Of Executive Officer) (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 04, 2016
Dec. 31, 2014
Dec. 31, 2015
Commitments And Contingencies [Line Items]      
Severance benefits   $ 23,800  
Accounts payable, accrued expenses and other liabilities   126,971 $ 135,057
Employee Severance [Member]      
Commitments And Contingencies [Line Items]      
Accounts payable, accrued expenses and other liabilities   $ 11,600 $ 11,700
Subsequent Event [Member] | Employee Severance [Member]      
Commitments And Contingencies [Line Items]      
Payment to former executive officers $ 11,400