XML 52 R39.htm IDEA: XBRL DOCUMENT
v3.20.4

Mortgage Notes Payable, Unsecured Notes and Credit Facility (Details 4) - USD ($) | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 31, 2020 | Dec. 31, 2020 | Aug. 31, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Dec. 31, 2019
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 7,629,814,000 |  |  |  | $ 7,355,371,000
Percentage of principle amount at which the entity may redeem some or all of the notes |  | 100.00% |  |  |  |
Variable rate unsecured credit facility |  | $ 0 |  |  |  | 0
Variable rate unsecured credit facility |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Available borrowing capacity |  | 1,750,000,000 |  |  |  |
Outstanding balance of letters of credit |  | 2,900,000 |  |  |  | 11,488,000
Variable rate unsecured credit facility |  | $ 0 |  |  |  | 0
Variable rate unsecured credit facility | LIBOR |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 0.92% |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  | 0.775% |  |  |  |
Other Letter of Credit [Member] |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Outstanding balance of letters of credit |  | $ 32,079,000 |  |  |  | $ 24,939,000
Notes Payable Maturities 2020 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Stated interest rate (as a percent) |  |  | 4.18% |  | 3.08% |
Notes Payable Maturities 2027 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Stated interest rate (as a percent) |  |  |  |  | 2.38% |
Unsecured notes |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 6,750,000,000 |  |  |  |
Unsecured notes | Minimum |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  | 0.20% |  |  |  |
Unsecured notes | Maximum |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  | 0.45% |  |  |  |
Unsecured notes | Notes Payable 3.625 Maturities 2020 [Member] |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Stated interest rate (as a percent) |  |  |  | 3.625% |  |
Unsecured notes | Notes Payable Maturities 2021 [Member] |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 0 |  |  |  |
Stated interest rate (as a percent) |  |  |  | 3.95% |  |
Unsecured notes | Floating Rate Unsecured Notes 300 Million |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Repayments of secured debt | $ 300,000,000 |  |  |  |  |
Unsecured notes | Notes payable maturing in 2022 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 450,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 2.95% |  |  |  |
Unsecured notes | Variable Rate Unsecured Term Loan $100 Million |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 100,000,000 |  |  |  |
Unsecured notes | Variable Rate Unsecured Term Loan $100 Million | LIBOR |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  | 0.90% |  |  |  |
Unsecured notes | Notes Payable 4.200 Maturities 2023 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 350,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 4.20% |  |  |  |
Unsecured notes | Notes Payable 2.850 Maturities 2023 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 250,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 2.85% |  |  |  |
Unsecured notes | Notes Payable 2024 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 300,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.50% |  |  |  |
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 150,000,000 |  |  |  |
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million | LIBOR |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  | 0.85% |  |  |  |
Unsecured notes | Notes Payable 3.450 Maturities 2025 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 525,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.45% |  |  |  |
Unsecured notes | Notes Payable 3.500 Maturities 2025 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 300,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.50% |  |  |  |
Unsecured notes | Notes Payable 2.950 Maturities 2026 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 475,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 2.95% |  |  |  |
Unsecured notes | Notes Payable 2.900 Maturities 2026 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 300,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 2.90% |  |  |  |
Unsecured notes | Notes Payable Maturities 2027 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 400,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.35% |  |  |  |
Unsecured notes | Notes Payable Maturities 2028 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 450,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.20% |  |  |  |
Unsecured notes | Notes Payable Maturities 2029 [Member] |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 450,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.30% |  |  |  |
Unsecured notes | Notes Payable Maturities 2030 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 700,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 2.30% |  |  |  |
Unsecured notes | Notes Payable Maturities 2031 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 600,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 2.45% |  |  |  |
Unsecured notes | Notes Payable Maturities 2046 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 350,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 3.90% |  |  |  |
Unsecured notes | Notes Payable Maturities 2047 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 300,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 4.15% |  |  |  |
Unsecured notes | Notes Payable Maturities 2048 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 300,000,000 |  |  |  |
Stated interest rate (as a percent) |  | 4.35% |  |  |  |
Secured notes |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | $ 304,282,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | 575,532,000 |  |  |  |
Secured notes | Notes Payable Maturities 2021 [Member] |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 9,304,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | 27,844,000 |  |  |  |
Secured notes | Notes payable maturing in 2022 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 9,918,000 |  |  |  |
Secured notes | Notes Payable Maturities 2023 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 10,739,000 |  |  |  |
Secured notes | Notes Payable 2024 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 11,677,000 |  |  |  |
Secured notes | Notes Payable Maturities 2025 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 12,408,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | 0 |  |  |  |
Secured notes | Notes Payable Maturities 2026 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 13,445,000 |  |  |  |
Secured notes | Notes Payable Maturities 2027 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 15,880,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | 236,100,000 |  |  |  |
Secured notes | Notes Payable Maturities 2028 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 20,707,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | 0 |  |  |  |
Secured notes | Notes Payable Maturities 2029 [Member] |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 11,742,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | 66,250,000 |  |  |  |
Secured notes | Notes Payable Maturities 2030 |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 12,384,000 |  |  |  |
Secured notes | Notes Payable Maturities Thereafter |  |  |  |  |  |
Mortgage Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |
Secured notes payments |  | 176,078,000 |  |  |  |
Mortgage notes payable and unsecured notes |  | $ 245,338,000 |  |  |  |

X
- Definition Amount of the total principal payments made during the annual reporting period. + 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)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentAnnualPrincipalPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: 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=119993939&loc=d3e28551-108399 Reference 3: 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=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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 No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the 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)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: 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)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_NotesPayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
Name: | us-gaap_RepaymentsOfSecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_OtherLetterofCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable3.625Maturities2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_FloatingRateUnsecuredNotes300MillionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_VariableRateUnsecuredTermLoan100MillionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable4.200Maturities2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable2.850Maturities2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_VariableRateUnsecuredTermLoan150MillionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable3.450Maturities2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable3.500Maturities2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable2.950Maturities2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayable2.900Maturities2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2030Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2046Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2047Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2048Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturities2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=avb_NotesPayableMaturitiesThereafterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |