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Cash Dividends - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Nov. 14, 2012
Dec. 31, 2012
May 01, 2010
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Dividends [Line Items]            
Dividend paid, per share   $ 0.08   $ 0.32 $ 0.28 $ 1.28
Dividend declared, per share $ 0.08          
Dividend paid, record date   Dec. 14, 2012        
Payment of cash dividends       $ 13,420,000 $ 12,199,000 $ 57,017,000
Special dividends paid     $ 44,500,000      
Common stock special dividends per share cash paid     $ 1.00