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Acquisition - Summary of Consideration for Acquisition (Detail) (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Change in fair value	$ 941,000	$ 941,000
Acquisition related liabilities	$ 1,600,000	1,600,000
Sonar Acquisition
Business Acquisition [Line Items]
Fair value of contingent consideration		$ 1,000,000.0

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- Definition

Acquisition Related Liabilities.

+ References

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- Definition

Business combination consideration change fair value.

+ References

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- Definition

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+ References

No definition available.

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- Definition

Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

+ 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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