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Share-Based Compensation - Additional Information (Detail)	3 Months Ended
	Mar. 30, 2013	Mar. 30, 2013 Stock Options [Member]	Feb. 14, 2013 2010 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded, Shares		0
Maximum number of shares authorized under plan			12,000,000
Number of shares available for issuance for each share issued			2.0

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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