Acquisitions - Summary of Acquisition Date Fair Value (Detail) - Genoptix $ / shares in Units, shares in Thousands, $ in Thousands	Dec. 10, 2018 USD ($) $ / shares shares
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Common stock issued (in shares) \| shares	1,000
Share price \| $ / shares	$ 13.94
Value of common stock issued as consideration	$ 13,940
Issue discount due to lack of marketability	(697)
Fair value of common stock at December 10, 2018	$ 13,243

Business acquisition issue discount for lack of marketability.

No definition available.

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- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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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

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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- Definition

Fair value of equity issued in a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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