Shareholders' Equity - Stock Based Compensation - Additional Information (Detail) In Millions, unless otherwise specified	6 Months Ended
	Aug. 02, 2014 OptionPlan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based incentive plans	2
Stock-based awards vesting period	1 year
Period in which stock option expires under condition	3 months
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of options and stock appreciation rights under the Performance Plan	4 years
Period in which stock option expires under condition one	10 years
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of options and stock appreciation rights under the Performance Plan	3 years
Period in which stock option expires under condition one	7 years
Performance Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of the Company's common stock that was available for award grants under the Performance Plan	2.8
Performance Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of options and stock appreciation rights under the Performance Plan	10 years