XML 52 R45.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Loans and Allowance for Credit Losses (Allowance for Credit Losses by Portfolio Class) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | $ 307,907 | $ 307,789 |
Allowance for loan losses: Net provision for loan losses | $ 8,723 | $ 7,633 | 21,691 | 13,653 |
Allowance for loan losses: Ending balance | 316,148 | 314,496 | 316,148 | 314,496 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 28,894 | 33,309 |
Reserve for unfunded lending commitments: Provision for losses |  |  | (2,815) | (2,149) |
Reserve for unfunded lending commitments: Ending balance | 26,079 | 31,160 | 26,079 | 31,160 |
Total allowance for credit losses | 342,227 | 345,656 | 342,227 | 345,656 |
Allowance for loan losses: Individually evaluated | 236 | 0 | 236 | 0 |
Allowance for loan losses: Collectively evaluated | 315,912 | 306,995 | 315,912 | 306,995 |
Reserve for unfunded lending commitments: Individually evaluated | 294 | 7,501 | 294 | 7,501 |
Reserve for unfunded lending commitments: Collectively evaluated | 25,785 | 31,160 | 25,785 | 31,160 |
Loans: Individually evaluated for impairment | 40,099 | 37,507 | 40,099 | 37,507 |
Loans: Collectively evaluated for impairment | 23,871,517 | 23,752,379 | 23,871,517 | 23,752,379 |
Total loans | 23,911,616 | 23,789,886 | 23,911,616 | 23,789,886 | $ 23,921,917
Non-Purchased Credit Impaired Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (35,317) | (14,588) |
Allowance for loan losses: Recoveries |  |  | 19,052 | 5,493 |
Allowance for loan losses: Net provision for loan losses |  |  | 24,506 | 15,802 |
Total Commercial [Member] | Commercial Real Estate - Income Producing [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 74,539 | 71,961 |
Allowance for loan losses: Ending balance | 77,643 | 77,141 | 77,643 | 77,141 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 1,344 | 1,395 |
Reserve for unfunded lending commitments: Provision for losses |  |  | (376) | 28 |
Reserve for unfunded lending commitments: Ending balance | 968 | 1,423 | 968 | 1,423 |
Total allowance for credit losses | 78,611 | 78,564 | 78,611 | 78,564 |
Allowance for loan losses: Individually evaluated |  | 0 |  | 0 |
Allowance for loan losses: Collectively evaluated | 77,643 | 77,141 | 77,643 | 77,141 |
Reserve for unfunded lending commitments: Individually evaluated |  | 0 |  | 0 |
Reserve for unfunded lending commitments: Collectively evaluated | 968 | 1,423 | 968 | 1,423 |
Loans: Individually evaluated for impairment | 23,436 | 0 | 23,436 | 0 |
Loans: Collectively evaluated for impairment | 4,030,376 | 3,762,428 | 4,030,376 | 3,762,428 |
Total loans | 4,053,812 | 3,762,428 | 4,053,812 | 3,762,428 | 3,986,943
Total Commercial [Member] | Construction and Land Development [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 27,039 | 30,498 |
Allowance for loan losses: Ending balance | 27,271 | 31,344 | 27,271 | 31,344 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 20,019 | 25,110 |
Reserve for unfunded lending commitments: Provision for losses |  |  | (2,693) | (2,227) |
Reserve for unfunded lending commitments: Ending balance | 17,326 | 22,883 | 17,326 | 22,883 |
Total allowance for credit losses | 44,597 | 54,227 | 44,597 | 54,227 |
Allowance for loan losses: Individually evaluated |  | 0 |  | 0 |
Allowance for loan losses: Collectively evaluated | 27,271 | 31,344 | 27,271 | 31,344 |
Reserve for unfunded lending commitments: Individually evaluated |  | 0 |  | 0 |
Reserve for unfunded lending commitments: Collectively evaluated | 17,326 | 22,883 | 17,326 | 22,883 |
Loans: Individually evaluated for impairment | 928 | 0 | 928 | 0 |
Loans: Collectively evaluated for impairment | 1,527,465 | 1,768,252 | 1,527,465 | 1,768,252 |
Total loans | 1,528,393 | 1,768,252 | 1,528,393 | 1,768,252 | 1,551,091
Total Commercial [Member] | Non-Purchased Credit Impaired Loans [Member] | Commercial Real Estate - Income Producing [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (8,819) | (73) |
Allowance for loan losses: Recoveries |  |  | 5 | 10 |
Allowance for loan losses: Net provision for loan losses |  |  | 11,918 | 5,243 |
Total Commercial [Member] | Non-Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (225) | (72) |
Allowance for loan losses: Recoveries |  |  | 62 | 6 |
Allowance for loan losses: Net provision for loan losses |  |  | 395 | 912 |
Total Commercial [Member] | Total Commercial And Industrial [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 141,934 | 144,745 |
Allowance for loan losses: Ending balance | 144,438 | 142,490 | 144,438 | 142,490 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 5,834 | 5,286 |
Reserve for unfunded lending commitments: Provision for losses |  |  | 336 | 39 |
Reserve for unfunded lending commitments: Ending balance | 6,170 | 5,325 | 6,170 | 5,325 |
Total allowance for credit losses | 150,608 | 147,815 | 150,608 | 147,815 |
Allowance for loan losses: Individually evaluated | 236 | 0 | 236 | 0 |
Allowance for loan losses: Collectively evaluated | 144,202 | 134,989 | 144,202 | 134,989 |
Reserve for unfunded lending commitments: Individually evaluated | 294 | 7,501 | 294 | 7,501 |
Reserve for unfunded lending commitments: Collectively evaluated | 5,876 | 5,325 | 5,876 | 5,325 |
Loans: Individually evaluated for impairment | 14,917 | 36,372 | 14,917 | 36,372 |
Loans: Collectively evaluated for impairment | 12,927,100 | 13,136,389 | 12,927,100 | 13,136,389 |
Total loans | 12,942,017 | 13,172,761 | 12,942,017 | 13,172,761 | 13,051,047
Total Commercial [Member] | Total Commercial And Industrial [Member] | Commercial Non-Real Estate [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 101,737 | 96,461 |
Allowance for loan losses: Ending balance | 105,873 | 96,195 | 105,873 | 96,195 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 5,507 | 4,984 |
Reserve for unfunded lending commitments: Provision for losses |  |  | 355 | 12 |
Reserve for unfunded lending commitments: Ending balance | 5,862 | 4,996 | 5,862 | 4,996 |
Total allowance for credit losses | 111,735 | 101,191 | 111,735 | 101,191 |
Allowance for loan losses: Individually evaluated | 180 | 0 | 180 | 0 |
Allowance for loan losses: Collectively evaluated | 105,693 | 88,694 | 105,693 | 88,694 |
Reserve for unfunded lending commitments: Individually evaluated | 294 | 7,501 | 294 | 7,501 |
Reserve for unfunded lending commitments: Collectively evaluated | 5,568 | 4,996 | 5,568 | 4,996 |
Loans: Individually evaluated for impairment | 11,578 | 35,697 | 11,578 | 35,697 |
Loans: Collectively evaluated for impairment | 9,836,181 | 10,078,235 | 9,836,181 | 10,078,235 |
Total loans | 9,847,759 | 10,113,932 | 9,847,759 | 10,113,932 | 9,957,284
Total Commercial [Member] | Total Commercial And Industrial [Member] | Commercial Real Estate - Owner Occupied [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 40,197 | 48,284 |
Allowance for loan losses: Ending balance | 38,565 | 46,295 | 38,565 | 46,295 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 327 | 302 |
Reserve for unfunded lending commitments: Provision for losses |  |  | (19) | 27 |
Reserve for unfunded lending commitments: Ending balance | 308 | 329 | 308 | 329 |
Total allowance for credit losses | 38,873 | 46,624 | 38,873 | 46,624 |
Allowance for loan losses: Individually evaluated | 56 | 0 | 56 | 0 |
Allowance for loan losses: Collectively evaluated | 38,509 | 46,295 | 38,509 | 46,295 |
Reserve for unfunded lending commitments: Collectively evaluated | 308 | 329 | 308 | 329 |
Loans: Individually evaluated for impairment | 3,339 | 675 | 3,339 | 675 |
Loans: Collectively evaluated for impairment | 3,090,919 | 3,058,154 | 3,090,919 | 3,058,154 |
Total loans | 3,094,258 | 3,058,829 | 3,094,258 | 3,058,829 | 3,093,763
Total Commercial [Member] | Total Commercial And Industrial [Member] | Non-Purchased Credit Impaired Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (17,304) | (7,503) |
Allowance for loan losses: Recoveries |  |  | 16,915 | 3,044 |
Allowance for loan losses: Net provision for loan losses |  |  | 2,893 | 2,204 |
Total Commercial [Member] | Total Commercial And Industrial [Member] | Non-Purchased Credit Impaired Loans [Member] | Commercial Non-Real Estate [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (17,304) | (7,503) |
Allowance for loan losses: Recoveries |  |  | 16,054 | 2,694 |
Allowance for loan losses: Net provision for loan losses |  |  | 5,386 | 4,543 |
Total Commercial [Member] | Total Commercial And Industrial [Member] | Non-Purchased Credit Impaired Loans [Member] | Commercial Real Estate - Owner Occupied [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  |  | 0 |
Allowance for loan losses: Recoveries |  |  | 861 | 350 |
Allowance for loan losses: Net provision for loan losses |  |  | (2,493) | (2,339) |
Residential Mortgages [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 38,983 | 32,464 |
Allowance for loan losses: Ending balance | 41,693 | 36,597 | 41,693 | 36,597 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 30 | 31 |
Reserve for unfunded lending commitments: Provision for losses |  |  | (19) | (8) |
Reserve for unfunded lending commitments: Ending balance | 11 | 23 | 11 | 23 |
Total allowance for credit losses | 41,704 | 36,620 | 41,704 | 36,620 |
Allowance for loan losses: Individually evaluated |  | 0 |  | 0 |
Allowance for loan losses: Collectively evaluated | 41,693 | 36,597 | 41,693 | 36,597 |
Reserve for unfunded lending commitments: Individually evaluated |  | 0 |  | 0 |
Reserve for unfunded lending commitments: Collectively evaluated | 11 | 23 | 11 | 23 |
Loans: Individually evaluated for impairment |  | 1,135 |  | 1,135 |
Loans: Collectively evaluated for impairment | 4,000,211 | 3,580,379 | 4,000,211 | 3,580,379 |
Total loans | 4,000,211 | 3,581,514 | 4,000,211 | 3,581,514 | 3,886,072
Residential Mortgages [Member] | Non-Purchased Credit Impaired Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (67) | (28) |
Allowance for loan losses: Recoveries |  |  | 296 | 480 |
Allowance for loan losses: Net provision for loan losses |  |  | 2,481 | 3,681 |
Consumer [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Beginning balance |  |  | 25,412 | 28,121 |
Allowance for loan losses: Ending balance | 25,103 | 26,924 | 25,103 | 26,924 |
Reserve for unfunded lending commitments: Beginning balance |  |  | 1,667 | 1,487 |
Reserve for unfunded lending commitments: Provision for losses |  |  | (63) | 19 |
Reserve for unfunded lending commitments: Ending balance | 1,604 | 1,506 | 1,604 | 1,506 |
Total allowance for credit losses | 26,707 | 28,430 | 26,707 | 28,430 |
Allowance for loan losses: Individually evaluated |  | 0 |  | 0 |
Allowance for loan losses: Collectively evaluated | 25,103 | 26,924 | 25,103 | 26,924 |
Reserve for unfunded lending commitments: Individually evaluated |  | 0 |  | 0 |
Reserve for unfunded lending commitments: Collectively evaluated | 1,604 | 1,506 | 1,604 | 1,506 |
Loans: Individually evaluated for impairment | 818 | 0 | 818 | 0 |
Loans: Collectively evaluated for impairment | 1,386,365 | 1,504,931 | 1,386,365 | 1,504,931 |
Total loans | $ 1,387,183 | $ 1,504,931 | 1,387,183 | 1,504,931 | $ 1,446,764
Consumer [Member] | Non-Purchased Credit Impaired Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses: Charge-offs |  |  | (8,902) | (6,912) |
Allowance for loan losses: Recoveries |  |  | 1,774 | 1,953 |
Allowance for loan losses: Net provision for loan losses |  |  | $ 6,819 | $ 3,762 |

X
- Definition Loans and leases receivables, net of deferred income. + References No definition available. + Details
Name: | hwc_LoansAndLeasesReceivablesNetOfDeferredIncome
Namespace Prefix: | hwc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Provision for losses on unfunded commitments. + References No definition available. + Details
Name: | hwc_ProvisionForLossesOnUnfundedCreditCommitments
Namespace Prefix: | hwc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reserve for unfunded lending commitments. + References No definition available. + Details
Name: | hwc_ReserveForUnfundedLendingCommitments
Namespace Prefix: | hwc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reserve for unfunded lending commitments collectively evaluated for impairment. + References No definition available. + Details
Name: | hwc_ReserveForUnfundedLendingCommitmentsCollectivelyEvaluatedForImpairment
Namespace Prefix: | hwc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reserve for unfunded lending commitments individually evaluated for Impairment. + References No definition available. + Details
Name: | hwc_ReserveForUnfundedLendingCommitmentsIndividuallyEvaluatedForImpairment
Namespace Prefix: | hwc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) -Publisher SEC Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(1) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (g) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (g) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(4) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(3) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L(5)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11C -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L(5)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) -Publisher SEC Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph (a) -Publisher SEC Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7A -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of expense related to credit loss from transactions other than loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
Name: | us-gaap_ProvisionForOtherCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_CreditLossStatusAxis=hwc_NonPurchasedCreditImpairedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hwc_CommercialRealEstateIncomeProducingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_CommercialAndIndustrialSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hwc_CommercialNonRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hwc_CommercialRealEstateOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |