Business acquisition, number of free shares held by the holders.

No definition available.

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Period Type:	instant

- Definition

Business acquisition, number of shares acquired.

+ References

No definition available.

+ Details

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- Definition

Business acquisition, percentage of equity interests agreed to acquire.

+ 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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- 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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Balance Type:	na
Period Type:	instant

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
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-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
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+ Details

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Balance Type:	credit
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
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Balance Type:	debit
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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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ACQUISITION OF SANGAMO THERAPEUTICS FRANCE S.A.S. - Narrative (Detail) - USD ($) $ / shares in Units, shares in Thousands		3 Months Ended		32 Months Ended
	Oct. 01, 2018	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Jul. 20, 2018
Business Acquisition [Line Items]
Goodwill impairments		$ 0	$ 0
Sangamo France \| Share purchase agreement and tender offer agreement
Business Acquisition [Line Items]
Noncontrolling interest ownership percentage		99.90%		99.90%
Sangamo France
Business Acquisition [Line Items]
Consideration transferred	$ 45,900,000
Business acquisition, share price (in dollars per share)	$ 2.99
Sangamo France \| Share purchase agreement and tender offer agreement
Business Acquisition [Line Items]
Percentage of equity interests agreed to acquire					100.00%
Number of ordinary shares acquired (in shares)				453
Number of free shares held by the holders (in shares)					477