Recent Transactions - Summary of Total Acquisition Consideration (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Business Combination, Consideration Transferred [Abstract]
Cash payments made upon closing	$ 400
Deferred payments	700
Closing costs accrued for asset acquisitions	8
Total purchase price consideration	$ 1,108

Amount of assets acquired at the acquisition date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant