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Long-term Debt - Narrative (Details)
12 Months Ended
Mar. 27, 2013
USD ($)
Feb. 29, 2016
Feb. 28, 2015
USD ($)
Feb. 28, 2013
USD ($)
Jan. 21, 2011
USD ($)
Mar. 31, 2008
USD ($)
Senior Notes [Member] | Unsecured Senior Notes Due March 2012 through March 2018 [Member]            
Debt Instrument [Line Items]            
Covenant, net worth minimum     $ 116,900,000      
Covenant, minimum retention of future income     50.00%      
Covenant, minimum fixed charge coverage ratio     2.0      
Debt instrument, face amount           $ 100,000,000
Debt instrument, stated percentage           6.24%
Covenant, minimum ratio of indebtedness to EBIDTA     3.25      
Covenant, maximum percentage of priority indebtedness     10.00%      
Senior Notes [Member] | Unsecured Senior Notes Due January 2021 [Member]            
Debt Instrument [Line Items]            
Covenant, net worth minimum     $ 116,900,000      
Covenant, minimum retention of future income     50.00%      
Covenant, minimum fixed charge coverage ratio     2.0      
Debt instrument, face amount         $ 125,000,000  
Debt instrument, stated percentage         5.42%  
Covenant, minimum ratio of indebtedness to EBIDTA     3.25      
Covenant, maximum percentage of priority indebtedness     10.00%      
Revolving Credit Facility [Member] | Bank of America [Member] | Line of Credit [Member]            
Debt Instrument [Line Items]            
Covenant, net worth minimum $ 230,000,000          
Covenant, minimum retention of future income 50.00%          
Covenant, maximum leverage ratio 3.25          
Covenant, minimum fixed charge coverage ratio 1.75          
Covenant, maximum capital expenditures $ 60,000,000          
Capital expenditure covenant 50,000,000          
Amount outstanding on line of credit     $ 101,000,000 $ 0    
Letters of credit outstanding     21,900,000      
Remaining borrowing capacity on line of credit     $ 102,100,000      
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity $ 225,000,000          
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Maximum [Member]            
Debt Instrument [Line Items]            
Variable rate description Eurodollar          
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Eurodollar [Member] | Minimum [Member]            
Debt Instrument [Line Items]            
Basis spread   1.00%        
Commitment fees 0.20%          
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Eurodollar [Member] | Maximum [Member]            
Debt Instrument [Line Items]            
Basis spread   2.00%        
Commitment fees 0.30%          
Line of Credit [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity $ 75,000,000          
Accordion feature $ 75,000,000