Subsequent Events - Additional Information (Detail) - Subsequent Event - USD ($)	Apr. 30, 2020	Apr. 29, 2020
Public Stock Offering \| Noncumulative Preferred Stock
Subsequent Event [Line Items]
Sale of stock (in shares)	2,200,000
Floating cumulative stock percentage	7.00%
Sale of stock, ownership interest in a share		2.50%
Subordinated Debt
Subsequent Event [Line Items]
Debt instrument, face amount		$ 125,000,000
Interest rate, stated percentage		5.25%
Percentage of principal to public offering price		100.00%

Debt Instrument, Percentage Of Principal To Public Offering Price

No definition available.

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- Definition

Floating Cumulative Stock Percentage

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Sale Of Stock, Ownership Interest In A Share

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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