Borrowings - Additional Information (Detail)	12 Months Ended
Dec. 31, 2021
Minimum
Repurchase Agreement Counterparty
Repurchase agreements, term	1 month
Maximum
Repurchase Agreement Counterparty
Repurchase agreements, term	6 months

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration