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Earning Per Share - Anti-Dilutive Stock Options (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 29, 2013	Jun. 29, 2013
Earnings Per Share [Abstract]
Weighted average shares	546	276
Weighted average exercise price	$ 44.51	$ 44.51

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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