(Loss) Earnings Per Share - Computation Of Basic And Diluted Earnings Per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Apr. 26, 2015	Apr. 27, 2014
Earnings Per Share [Abstract]
Net (loss) income	$ (142)us-gaap_ProfitLoss	$ 7,867us-gaap_ProfitLoss
Weighted average common shares outstanding - basic	66,713	67,300
Dilutive effect of options and restricted stock units	0	670
Weighted average common shares outstanding - diluted	66,713	67,970
Basic (loss) earnings (in dollars per share)	$ 0.00us-gaap_EarningsPerShareBasic	$ 0.12us-gaap_EarningsPerShareBasic
Diluted (loss) earnings per common share	$ 0.00us-gaap_EarningsPerShareDiluted	$ 0.12us-gaap_EarningsPerShareDiluted
Anti-dilutive shares not included in the above calculations	2,525	1,662

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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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 consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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