Stockholders' Equity - Additional Information (Detail) - shares	Dec. 31, 2021	Dec. 31, 2020
Equity [Abstract]
Shares reserved for issuance under the Directors Deferred Fee Plan	94,109	89,696

Number of common shares reserved for future issuance related to deferred compensation arrangements with individuals.

No definition available.

Name:	us-gaap_DeferredCompensationArrangementWithIndividualCommonStockReservedForFutureIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant