Earnings (Loss) Per Share (Computation of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
Apr. 01, 2016	Apr. 03, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income (loss) to common stockholders	$ 11,751	$ (68,824)
Denominator for basic earnings per share—weighted average common shares	132,857	130,513
Effect of stock options and awards	2,410
Denominator for diluted earnings per share—adjusted weighted average common shares	135,267	130,513
Earnings per share, Basic	$ 0.09	$ (0.53)
Earnings per share, Diluted	$ 0.09	$ (0.53)
Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares not included in the above calculations		5,912
Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares not included in the above calculations	1,470	4,034

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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