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Debt - Narrative (Details)
12 Months Ended
Mar. 27, 2013
USD ($)
Mar. 31, 2008
USD ($)
annual_installment
Feb. 28, 2019
USD ($)
Feb. 28, 2018
USD ($)
Feb. 28, 2017
USD ($)
Jan. 21, 2011
USD ($)
Debt Instrument [Line Items]            
Long-term Debt     $ 240,745,000 $ 300,895,000    
Repayments of long term debt     14,286,000 63,504,000 $ 23,192,000  
Senior Notes [Member] | Line of Credit [Member]            
Debt Instrument [Line Items]            
Accordion feature $ 75,000,000          
Long-term Debt     116,000,000 162,000,000    
Covenant, maximum leverage ratio 3.25          
Covenant, minimum fixed charge coverage ratio 3.00          
Variable rate description Eurodollar          
Letters of credit outstanding     18,700,000      
Remaining borrowing capacity on line of credit     315,300,000      
Senior Notes [Member] | Unsecured Senior Notes Due March 2012 through March 2018 [Member]            
Debt Instrument [Line Items]            
Long-term Debt     0 14,286,000    
Debt instrument, face amount   $ 100,000,000        
Debt instrument, stated percentage   6.24%        
Number of annual installments | annual_installment   7        
Annual installments   $ 14,300,000        
Senior Notes [Member] | Unsecured Senior Notes Due January 2021 [Member]            
Debt Instrument [Line Items]            
Long-term Debt     125,000,000 $ 125,000,000    
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%      
Bank Of America And Other Lenders [Member] | Letter of Credit [Member]            
Debt Instrument [Line Items]            
Accordion feature $ 150,000,000          
Bank Of America And Other Lenders [Member] | Line of Credit [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity 450,000,000          
Covenant, maximum capital lease obligations 20,000,000          
Covenant, maximum investments in foreign subsidiaries 50,000,000          
Repayments of long term debt 75,000,000          
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          
Accordion feature $ 30,000,000          
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Eurodollar [Member]            
Debt Instrument [Line Items]            
Basis spread     1.00%      
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     0.875%      
Commitment fees 0.175%          
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     1.875%      
Commitment fees 0.30%          
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Base Rate [Member]            
Debt Instrument [Line Items]            
Basis spread     0.50%      
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