Income Taxes - Additional Information (Detail) $ in Millions	9 Months Ended
Sep. 30, 2021 USD ($)
Income Taxes [Line Items]
Goodwill useful life for income tax purposes	15 years
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 74.3
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 20.0

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

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