Goodwill and Other Intangible Assets - Schedule of Identifiable Intangible Assets Carrying Value (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Finite-lived Intangible Asset, Useful Life (Years)	5 years
Finite-lived Intangible Assets, Gross	$ 39,288	$ 39,288
Finite-lived Intangible Assets, Accumulated Amortization	(24,554)	(23,439)
Finite-lived Intangible Assets, Net Carrying Value	$ 14,734	15,849
CLIA Lab [Member]
Finite-lived Intangible Asset, Useful Life (Years)	2 years 3 months 19 days
Finite-lived Intangible Assets, Gross	$ 609	609
Asuragen Acquisition [Member] \| Thyroid [Member]
Finite-lived Intangible Asset, Useful Life (Years)	9 years
Finite-lived Intangible Assets, Gross	$ 8,519	8,519
RedPath Acquisition [Member] \| Pancreas Test [Member]
Finite-lived Intangible Asset, Useful Life (Years)	7 years
Finite-lived Intangible Assets, Gross	$ 16,141	16,141
RedPath Acquisition [Member] \| Barrett's Test [Member]
Finite-lived Intangible Asset, Useful Life (Years)	9 years
Finite-lived Intangible Assets, Gross	$ 6,719	6,719
BioPharma Acquisition [Member] \| Trademarks [Member]
Finite-lived Intangible Asset, Useful Life (Years)	10 years
Finite-lived Intangible Assets, Gross	$ 1,600	1,600
BioPharma Acquisition [Member] \| Customer Relationships [Member]
Finite-lived Intangible Asset, Useful Life (Years)	8 years
Finite-lived Intangible Assets, Gross	$ 5,700	$ 5,700

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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-Topic 350
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