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Commitments and Contingencies - Schedule of Other Information Related to Leases (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Cash paid for amounts included in the measurement of lease liability:
Operating cash flows from operating lease	$ 188
Remaining lease term
Operating lease	9 months
Discount rate
Operating lease	3.25%

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- Definition

Cash paid for amounts included in measurement of lease liabilities.

+ References

No definition available.

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Discount rate.

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Remaining lease term.

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(1)
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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