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Derivative Instruments and Hedging Activities (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended
Nov. 02, 2012
Nov. 02, 2012
Interest Rate Swap [Member]
Aug. 03, 2012
Interest Rate Swap [Member]
Nov. 02, 2012
Interest Rate Swap [Member]
Cash Flow Hedging [Member]
Aug. 03, 2012
Interest Rate Swap [Member]
Cash Flow Hedging [Member]
Nov. 02, 2012
Interest Rate Swap [Member]
Cash Flow Hedging [Member]
Interest Expense [Member]
Oct. 28, 2011
Interest Rate Swap [Member]
Cash Flow Hedging [Member]
Interest Expense [Member]
Nov. 02, 2012
Current interest rate swap liability [Member]
Aug. 03, 2012
Current interest rate swap liability [Member]
Nov. 02, 2012
Current interest rate swap liability [Member]
Interest Rate Swap [Member]
Aug. 03, 2012
Current interest rate swap liability [Member]
Interest Rate Swap [Member]
Nov. 02, 2012
Long-term interest rate swap liability [Member]
Interest Rate Swap [Member]
Aug. 03, 2012
Long-term interest rate swap liability [Member]
Interest Rate Swap [Member]
Nov. 02, 2012
Interest Rate Swap May 4, 2006 [Member]
Nov. 02, 2012
Interest Rate Swap Aug 10, 2010 [Member]
Nov. 02, 2012
Two Year Interest Rate Swap July 25, 2011 [Member]
Nov. 02, 2012
Three Year Interest Rate Swap July 25, 2011 [Member]
Nov. 02, 2012
Interest Rate Swap 1 September 19, 2011 [Member]
Nov. 02, 2012
Interest Rate Swap 2 September 19, 2011 [Member]
Nov. 02, 2012
Interest Rate Swap December 7, 2011 [Member]
Derivative [Line Items]                                        
Company's credit spread (in hundredths) 1.75%                                      
Effective date                           Aug. 03, 2006 May 03, 2013 May 03, 2013 May 03, 2013 May 03, 2013 May 03, 2013 May 03, 2013
Term                           7 years 2 years 2 years 3 years 2 years 2 years 3 years
Notional amount                           $ 525,000 $ 200,000 $ 50,000 $ 50,000 $ 25,000 $ 25,000 $ 50,000
Fixed rate (in hundredths)                           5.57% 2.73% 2.00% 2.45% 1.05% 1.05% 1.40%
Derivatives, Fair Value [Line Items]                                        
Fair Value   28,880 34,381             13,799 20,215 15,081 14,166              
Reduction in the fair value               662 851                      
Estimated pre-tax portion of AOCL that is expected to be reclassified into earnings over the next twelve months 15,937                                      
Derivative Instruments, Gain (Loss) [Line Items]                                        
Amount of Income Recognized in AOCL on Derivative (Effective Portion)       5,501 17,223                              
Amount of Loss Reclassified from AOCL into Income (Effective Portion)           $ 0 $ 7,445