Business Combination (Details) (BIIHolding [Member], USD $) In Thousands			3 Months Ended
Jul. 03, 2011	Apr. 03, 2011 Acquisition Date Estimated Fair Value [Member]	Jul. 03, 2011 Scenario, Adjustment [Member]
Purchase price allocation
Accounts receivable	$ 18,321	$ 18,321
Prepaid and other current assets	3,783	3,783
Deferred income tax assets	15,970	15,970
Property and equipment	23,260	22,359
Intangible assets	126,300	126,900
Other long-term assets	8,765	8,884
Total assets acquired	196,399	196,217
Accounts payable	(3,977)	(3,977)
Accrued expenses	(8,461)	(8,461)
Deferred income tax liabilities	(43,824)	(43,824)
Other long-term liabilities	(11,431)	(11,431)
Long-term debt	(2,014)	(2,014)
Total liabilities assumed	(69,707)	(69,707)
Total identifiable net assets	126,692	126,510
Goodwill	282,915	283,097
Total consideration for Cornell, net of cash acquired	409,607	409,607
Measurement Period Adjustments, Property and equipment			901
Measurement Period Adjustments, Intangible assets			(600)
Measurement Period Adjustments, Other long-term assets			(119)
Measurement Period Adjustments, Assets Acquired			182
Measurement Period Adjustments Identifiable Net Assets			182
Measurement Period Adjustments, Goodwill			$ (182)

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Business Acquisition Purchase Price Allocation Intangible Assets.

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Measurement Period Adjustments Goodwill.

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Measurement Period Adjustments Property and equipment.

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The amount of acquisition cost of a business combination allocated to assets acquired.

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The amount of acquisition cost of a business combination allocated to receivables.

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The amount of acquisition cost of a business combination allocated to accounts payable of the acquired entity.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amount of acquisition cost of a business combination allocated to notes payables and long-term debt assumed from the acquired entity.

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The amount of acquisition cost of a business combination allocated to noncurrent assets of the acquired entity, except for property plant and equipment, intangible assets, and goodwill.

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The amount of acquisition cost of a business combination allocated to other noncurrent liabilities of the acquired entity.

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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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The net amount recognized as of the acquisition date for the aggregate identifiable assets acquired in excess of or less than the aggregate liabilities assumed.

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The net amount recognized as of the acquisition date for the aggregate assets, including goodwill, in excess of or less than the aggregate liabilities assumed, less the noncontrolling interest in the acquiree. This amount represents the recognized net assets acquired which are attributable to the parent which may also be viewed as the incremental amount of equity attributable to the parent resulting from the business combination.

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