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Business Acquisitions Oncotest Additional Information (Details) - Oncotest $ in Thousands, € in Millions		12 Months Ended
	Nov. 18, 2015 USD ($)	Dec. 26, 2015 USD ($)	Dec. 26, 2015 EUR (€)	Dec. 26, 2015 USD ($)
Business Acquisition [Line Items]
Purchase price	$ 36,000
Maximum contingent consideration			€ 2.0	$ 2,200
Contingent consideration, liability	300
Total purchase price allocation	35,431
Cash acquired in excess of payments to acquire business	$ 600
Transaction and integration costs		$ 2,100

X

- Definition

Acquisition, Purchase Price

+ References

No definition available.

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- Definition

Business Combination, Integration Related Costs and Transaction Costs

+ References

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+ Details

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X

- Definition

Payments to Acquire Business, Net of Cash Acquired

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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X

- Definition

The cash inflow associated with the acquisition of a business when the cash held by the acquired business exceeds the cash payments to acquire the business.

+ References

No definition available.

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