Debt instrument redemption price percentage of principal plus accrued and unpaid interest.

No definition available.

Name:	hwc_DebtInstrumentRedemptionPricePercentageOfPrincipalPlusAccruedAndUnpaidInterest
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Other long term debt maturity date range end.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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

- Definition

Date the debt agreement requires the first payment to be made, in YYYY-MM-DD format.

+ 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
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+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
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+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date the debt instrument was issued, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
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+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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+ Details

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

- Definition

Start date of debt instrument redemption period, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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+ Details

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Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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Long-Term Debt (Narrative) (Details) - USD ($) $ in Thousands			12 Months Ended
	Jun. 15, 2021	Jun. 09, 2020	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Notes payable aggregate principal amount			$ 250,056
Loss on extinguishment of debt			$ 4,165
Other long-term debt maturity year			2050
Subordinated Notes [Member] \| Subordinated Notes Payable, Maturing June 2045 [Member]
Debt Instrument [Line Items]
Notes payable redemption start date	Jun. 15, 2021
Notes payable interest rate	5.95%
Notes payable aggregate principal amount	$ 150,000
Notes payable redeemed principal plus accrued and unpaid interest rate	100.00%
Loss on extinguishment of debt	$ 4,200
Subordinated Notes [Member] \| Subordinated Notes Payable, Maturing June 2060 [Member]
Debt Instrument [Line Items]
Notes payable redemption start date		Jun. 15, 2025
Notes payable interest rate		6.25%
Notes payable aggregate principal amount		$ 172,500	$ 172,500	$ 172,500
Notes payable issuance date		Jun. 09, 2020
Notes payable maturity date		Jun. 15, 2060
Notes payable beginning payment date		Sep. 15, 2020
Other Long-Term Debt [Member]
Debt Instrument [Line Items]
Notes payable aggregate principal amount			$ 77,556	$ 66,062
Notes payable agreement period			7 years