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Business Acquisitions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended		0 Months Ended	1 Months Ended	6 Months Ended
	Jun. 15, 2013	Mar. 23, 2013 Segment	Jun. 15, 2013	Jun. 16, 2012	Jun. 16, 2012	Dec. 29, 2012	Oct. 09, 2012 PLG [Member]	Oct. 09, 2012 PLG [Member]	Jun. 15, 2013 PLG [Member]
Business Acquisition [Line Items]
Business acquisition price paid in cash							$ 1,249.5		$ 88.8
Number of reportable segments		3
Acquisition-related transaction and integration costs	7.9		23.1	4.9	4.9
Compensation costs	5.4		15.7
Amortization of other purchased services	2.0		3.7	0.2	0.2
Professional and legal fees	0.5		1.3	4.7	4.7
Amortization of short-lived intangible assets			2.4
Net reduction to goodwill			(0.7)						0.7
Goodwill from the acquisition of PLG	418.9		418.9			419.6			418.9
Value of inventory	203.5		203.5			203.5	4.0	4.0
Fixed assets written up to estimated fair market value								$ 18.8

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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The amount of inventory recognized as of the acquisition date.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The increase (decrease) in the fair value of servicing assets that are subsequently measured at fair value.

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Business combination amortization of short lived intangible assets.

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Business combination recognized compensation expenses.

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Business combination recognized identifiable assets acquired and liabilities assumed goodwill.

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Professional and legal fees.

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