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BUSINESS ACQUISITIONS - Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jan. 03, 2020	Apr. 29, 2019
HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 183,540
Weighted-average amortization life	18 years
Citoxlab
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 162,400
Weighted-average amortization life		12 years
Customer Relationships | HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 170,390
Weighted-average amortization life	19 years
Customer Relationships | Citoxlab
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 134,600
Weighted-average amortization life		13 years
Trade Name | HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 7,330
Weighted-average amortization life	10 years
Other Intangible Assets | HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 5,820
Weighted-average amortization life	3 years
Developed Technology | Citoxlab
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 19,900
Weighted-average amortization life		3 years
Backlog | Citoxlab
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 7,900
Weighted-average amortization life		1 year

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
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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.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
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