Quarterly report pursuant to Section 13 or 15(d)

Net Income Per Common Share - Net Income Per Basic and Diluted Share (Detail)

v2.4.1.9
Net Income Per Common Share - Net Income Per Basic and Diluted Share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
May 02, 2015
May 03, 2014
Earnings Per Share [Abstract]    
Numerator for diluted net income per share - net income $ 66,946us-gaap_NetIncomeLoss $ 49,953us-gaap_NetIncomeLoss
Denominator for basic net income per share - weighted-average common shares 64,180us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 64,273us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Dilutive effect of stock options and non-vested stock 375us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 334us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Denominator for diluted net income per share 64,555us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 64,607us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Net income per common share:    
Basic $ 1.04us-gaap_EarningsPerShareBasic $ 0.78us-gaap_EarningsPerShareBasic
Diluted $ 1.04us-gaap_EarningsPerShareDiluted $ 0.77us-gaap_EarningsPerShareDiluted