Earnings per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
May 02, 2015	May 03, 2014
Numerator
Total net earnings attributable to common shareholders	$ 10,369us-gaap_NetIncomeLoss	$ 16,486us-gaap_NetIncomeLoss
Net earnings allocated to participating securities (restricted stock and deferred stock units) - basic	(12)	(65)
Net earnings allocated to participating securities (restricted stock and deferred stock units) - diluted	(12)	(65)
Net earnings attributable to common shareholders - basic	10,357	16,421
Net earnings attributable to common shareholders - diluted	$ 10,357	$ 16,421
Denominator
Basic weighted-average common shares outstanding	48,130	47,607
Dilutive effect of share-based awards (in shares)	299	367
Diluted weighted-average common shares outstanding	48,429	47,974
Net earnings per common share attributable to common shareholders:
Basic (in dollars per share)	$ 0.22us-gaap_EarningsPerShareBasic	$ 0.34us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ 0.21us-gaap_EarningsPerShareDiluted	$ 0.34us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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