XML 61 R46.htm IDEA: XBRL DOCUMENT
v3.25.2

Investment Securities, AFS and HTM Securities Amortized Costs and Fair Values (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | $ 5,007,880 | $ 4,605,954
Debt Securities, Available-for-Sale | 5,036,508 | 4,581,434
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (14,370) | (30,213)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 42,999 | 5,693
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 3,672,161 | 3,738,747
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 38,157 | 42,653
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (569,986) | (595,906)
Debt Securities, Held-to-Maturity, Fair Value | 3,140,331 | 3,185,494
US Treasury Securities |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 994 | 1,000
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 18 | 0
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | 0 | (1)
Debt Securities, Held-to-Maturity, Fair Value | 1,013 | 999
US Treasury Securities | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 994 | 1,000
Debt Securities, Held-to-Maturity, Fair Value | 1,013 | 999
US Treasury Securities | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-Maturity, Fair Value | 0 | 0
US States and Political Subdivisions Debt Securities [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 3,063 | 3,063
Debt Securities, Available-for-Sale | 2,993 | 3,005
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (71) | (58)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,643,021 | 1,659,722
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 578 | 1,122
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (201,630) | (174,202)
Debt Securities, Held-to-Maturity, Fair Value | 1,441,969 | 1,486,642
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 2,993 | 3,005
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 1,642,962 | 1,659,662
Debt Securities, Held-to-Maturity, Fair Value | 1,441,910 | 1,486,582
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 2,993 | 3,005
Debt Securities, Held-to-Maturity, Fair Value | 1,441,910 | 1,486,582
Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 0 |
Debt Securities, Available-for-Sale | 0 |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 313,439 | 324,182
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 7,387 | 8,135
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (58,290) | (65,963)
Debt Securities, Held-to-Maturity, Fair Value | 262,536 | 266,353
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 102,177 | 108,319
Debt Securities, Available-for-Sale | 100,489 | 107,839
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (1,689) | (604)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 123
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 |
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 100,489 | 107,839
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 100,489 | 107,839
US Government-sponsored Enterprises Debt Securities [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 394 | 495
Debt Securities, Available-for-Sale | 377 | 471
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (17) | (24)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 0 |
Debt Securities, Held-to-Maturity, Fair Value | 0 |
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 377 | 471
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 377 | 471
Other Debt securities |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 3,000 | 3,000
Debt Securities, Available-for-Sale | 2,998 | 2,989
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (2) | (11)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
US Government Sponsored-Enterprise Insured Loans | Residential Mortgage-Backed Securities [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 126,138 | 120,272
Debt Securities, Available-for-Sale | 119,914 | 110,928
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (6,725) | (9,534)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 500 | 190
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 854,777 | 885,476
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 20,900 | 22,934
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (168,381) | (186,464)
Debt Securities, Held-to-Maturity, Fair Value | 707,296 | 721,946
US Government Sponsored-Enterprise Insured Loans | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 119,914 | 110,928
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 854,777 | 885,476
Debt Securities, Held-to-Maturity, Fair Value | 707,296 | 721,946
US Government Sponsored-Enterprise Insured Loans | Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 119,914 | 110,928
Debt Securities, Held-to-Maturity, Fair Value | 707,296 | 721,946
US Government Sponsored-Enterprise Insured Loans | Commercial Mortgage-Backed Securities [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 18,147 | 18,332
Debt Securities, Available-for-Sale | 16,937 | 17,000
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (1,210) | (1,332)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 768,503 | 772,456
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 9,063 | 10,217
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (133,145) | (159,078)
Debt Securities, Held-to-Maturity, Fair Value | 644,422 | 623,595
US Government Sponsored-Enterprise Insured Loans | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 16,937 | 17,000
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 768,503 | 772,456
Debt Securities, Held-to-Maturity, Fair Value | 644,422 | 623,595
US Government Sponsored-Enterprise Insured Loans | Commercial Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 16,937 | 17,000
Debt Securities, Held-to-Maturity, Fair Value | 644,422 | 623,595
Government National Mortgage Association (GNMA) [Member] | Residential Mortgage-Backed Securities [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 4,640,079 | 4,236,199
Debt Securities, Available-for-Sale | 4,682,415 | 4,227,727
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (162) | (13,851)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 42,498 | 5,379
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 42,028 | 43,693
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 12 | 9
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (2,904) | (3,774)
Debt Securities, Held-to-Maturity, Fair Value | 39,136 | 39,927
Government National Mortgage Association (GNMA) [Member] | Residential Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 4,682,415 | 4,227,727
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 42,028 | 43,693
Debt Securities, Held-to-Maturity, Fair Value | 39,136 | 39,927
Government National Mortgage Association (GNMA) [Member] | Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 4,682,415 | 4,227,727
Debt Securities, Held-to-Maturity, Fair Value | 39,136 | 39,927
Government National Mortgage Association (GNMA) [Member] | Commercial Mortgage-Backed Securities [Member] |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost | 114,881 | 116,275
Debt Securities, Available-for-Sale | 110,386 | 111,475
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (4,495) | (4,800)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 49,399 | 52,219
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | 197 | 236
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | (5,637) | (6,424)
Debt Securities, Held-to-Maturity, Fair Value | 43,959 | 46,032
Government National Mortgage Association (GNMA) [Member] | Commercial Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 110,386 | 111,475
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 49,399 | 52,219
Debt Securities, Held-to-Maturity, Fair Value | 43,959 | 46,032
Government National Mortgage Association (GNMA) [Member] | Commercial Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale | 110,386 | 111,475
Debt Securities, Held-to-Maturity, Fair Value | $ 43,959 | $ 46,032

X
- Definition [Line Items] for Schedule of Available-for-sale and Held-to-maturity Securities [Table] [Table] + References No definition available. + Details
Name: | asb_ScheduleofAvailableforsaleandHeldtomaturitySecuritiesTableLineItems
Namespace Prefix: | asb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481830/320-10-45-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7A Reference 2: 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 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 4: 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 + Details
Name: | us-gaap_HeldToMaturitySecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A + Details
Name: | us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A + Details
Name: | us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_HeldToMaturitySecuritiesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_FederalFamilyEducationLoanProgramFfelpGuaranteedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_DebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=us-gaap_UsGovernmentSponsoredEnterpriseInsuredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=us-gaap_GovernmentNationalMortgageAssociationGnmaInsuredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |