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Debt - Narrative (Details)
12 Months Ended
Mar. 27, 2013
USD ($)
Feb. 29, 2020
USD ($)
Feb. 28, 2019
USD ($)
Feb. 28, 2018
USD ($)
Jan. 21, 2011
USD ($)
Debt Instrument [Line Items]          
Long-term Debt   $ 202,878,000 $ 240,745,000    
Repayments of long term debt   0 14,286,000 $ 63,504,000  
Senior Notes [Member] | Line of Credit [Member]          
Debt Instrument [Line Items]          
Accordion feature $ 75,000,000        
Long-term Debt   78,000,000.0 116,000,000    
Covenant, maximum leverage ratio 3.25        
Covenant, minimum fixed charge coverage ratio 3.00        
Variable rate description Eurodollar        
Letters of credit outstanding   14,400,000      
Remaining borrowing capacity on line of credit   357,600,000      
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         $ 125,000,000.0
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 75,000,000.0        
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member]          
Debt Instrument [Line Items]          
Maximum borrowing capacity 225,000,000.0        
Accordion feature $ 30,000,000        
Debt instrument, interest rate, effective percentage   4.06%      
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 $ 75,000,000.0        
Accordion feature $ 75,000,000.0