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Note 4 - Debt (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
May 04, 2017
Jul. 29, 2016
Mar. 24, 2015
Dec. 31, 2016
Dec. 31, 2017
Oct. 31, 2016
Long-term Debt, Gross          
Sale Leaseback Transaction, Deferred Gain, Gross           $ 6,300
Capital Lease Obligations         $ 0  
Restructuring Cost, Unrecorded Accrued Interest       $ 60,500    
Bank of America N.A. [Member] | Credit Agreement [Member]            
Debt Agreement, Maximum Borrowing Capacity     $ 1,660,000      
Amended Credit Facility [Member] | PNC Bank, National Association [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 200,000          
Debt Instrument, Basis Spread On Variable Rate, Alternative Rate 1.00%          
Line of Credit Facility, Monthly Minimum Fixed Charge Ratio 1          
Line of Credit Facility, Monthly Minimum Fixed Charge Coverage Ratio, Liquidity Threshold for Testing, 2018 and Thereafter $ 40,000          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Less Than 25% of Total Commitment [Member]            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.75%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Less Than 25% of Total Commitment [Member] | Maximum [Member]            
Line of Credit Facility, Used Capacity of Total Commitment 25.00%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 25% and Less Than 50% of Total Commitment [Member]            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.50%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 25% and Less Than 50% of Total Commitment [Member] | Maximum [Member]            
Line of Credit Facility, Used Capacity of Total Commitment 50.00%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 25% and Less Than 50% of Total Commitment [Member] | Minimum [Member]            
Line of Credit Facility, Used Capacity of Total Commitment 25.00%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 50% of Total Commitment [Member]            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.375%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 50% of Total Commitment [Member] | Minimum [Member]            
Line of Credit Facility, Used Capacity of Total Commitment 50.00%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt Instrument, Basis Spread on Variable Rate 2.00%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | London Interbank Offered Rate (LIBOR) [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Less Than 37.5% of Total Commitment [Member]            
Debt Instrument, Basis Spread on Variable Rate, Step-up 0.25%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | London Interbank Offered Rate (LIBOR) [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Less Than 37.5% of Total Commitment [Member] | Maximum [Member]            
Line of Credit Facility, Used Capacity of Total Commitment 37.50%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | London Interbank Offered Rate (LIBOR) [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 62.5% of Total Commitment [Member]            
Debt Instrument, Basis Spread on Variable Rate, Step-down 0.25%          
Amended Credit Facility [Member] | PNC Bank, National Association [Member] | London Interbank Offered Rate (LIBOR) [Member] | Condition of a Credit Facility if the Used Capacity of Facility is Equal To or Greater Than 62.5% of Total Commitment [Member] | Minimum [Member]            
Line of Credit Facility, Used Capacity of Total Commitment 62.50%          
Predecessor [Member]            
Liabilities Subject to Compromise, Debt and Capital Lease Obligations       1,300,000    
Long-term Debt, Gross       1,333,800    
Predecessor [Member] | DIP Lenders [Member]            
Line of Credit Facility, Commitment Fee Percentage   5.00%        
Predecessor [Member] | DIP Lenders [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt Instrument, Basis Spread on Variable Rate   9.00%        
Predecessor [Member] | DIP Lenders [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]            
Debt Instrument, Basis Spread On Variable Rate, Alternative Rate   1.00%        
Predecessor [Member] | DIP Lenders [Member] | Base Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate   8.00%        
Predecessor [Member] | DIP Lenders [Member] | Federal Funds Effective Swap Rate [Member] | Minimum [Member]            
Debt Instrument, Basis Spread On Variable Rate, Alternative Rate   0.50%        
Predecessor [Member] | Bank of America N.A. [Member] | Credit Agreement [Member]            
Debt Agreement, Maximum Borrowing Capacity     1,660,000      
Predecessor [Member] | Bank of America N.A. [Member] | Term Loan B [Member]            
Long-term Debt     $ 1,060,000      
Debt Instrument, Periodic Payment, Principal, Annual Amortization Rate     1.00%      
Predecessor [Member] | Bank of America N.A. [Member] | Term Loan B [Member] | Debt Instrument, Redemption, Period One [Member]            
Long-term Debt, Gross     $ 575,000 569,300    
LIBOR Floor Rate     1.00%      
Debt Instrument, Term     5 years      
Predecessor [Member] | Bank of America N.A. [Member] | Term Loan B [Member] | Debt Instrument, Redemption, Period Two [Member]            
Long-term Debt, Gross     $ 485,000 $ 480,200    
Debt Instrument, Term     7 years      
Predecessor [Member] | Bank of America N.A. [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan B [Member]            
Debt Instrument, Basis Spread On Variable Rate, Alternative Rate     1.00%      
Predecessor [Member] | Bank of America N.A. [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan B [Member] | Debt Instrument, Redemption, Period One [Member]            
Debt Instrument, Basis Spread on Variable Rate     5.50%      
Predecessor [Member] | Bank of America N.A. [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan B [Member] | Debt Instrument, Redemption, Period Two [Member]            
Debt Instrument, Basis Spread on Variable Rate     6.25%      
LIBOR Floor Rate     1.00%      
Predecessor [Member] | Bank of America N.A. [Member] | Base Rate [Member] | Term Loan B [Member] | Debt Instrument, Redemption, Period One [Member]            
Debt Instrument, Basis Spread on Variable Rate     4.50%      
Predecessor [Member] | Bank of America N.A. [Member] | Base Rate [Member] | Term Loan B [Member] | Debt Instrument, Redemption, Period Two [Member]            
Debt Instrument, Basis Spread on Variable Rate     5.25%      
Predecessor [Member] | Bank of America N.A. [Member] | Federal Funds Effective Swap Rate [Member] | Term Loan B [Member]            
Debt Instrument, Basis Spread On Variable Rate, Alternative Rate     0.50%      
Predecessor [Member] | Revolving Credit Facility [Member] | Bank of America N.A. [Member] | Credit Agreement [Member]            
Line of Credit Facility, Maximum Borrowing Capacity     $ 600,000