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BUSINESS ACQUISITIONS - VivoPath, Additional Information (Details) - VivoPath - USD ($) $ in Millions		12 Months Ended
	Jun. 16, 2014	Dec. 31, 2016	Dec. 26, 2015
Business Acquisition [Line Items]
Purchase price	$ 2.3
Contingent consideration	$ 1.6	$ 0.2
Maximum contingent consideration		$ 2.4
Contingent consideration, payment period		3 years
Contingent consideration, payment		$ 0.2	$ 0.6
Gain on contingent consideration liability			$ 0.8

X

- Definition

Earn Out Period - Represents the duration of the earnout period on acquisition.

+ References

No definition available.

+ Details

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- 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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X

- Definition

Amount paid or received to resolve the preacquisition contingency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 2.A.6)
-URI http://asc.fasb.org/extlink&oid=27011391&loc=d3e105049-122735

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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X

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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-SubTopic 30
-Section 30
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X

- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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-Paragraph 4
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X

- 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

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
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- Definition

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

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- Details

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