XML 64 R53.htm IDEA: XBRL DOCUMENT
v3.21.1

Derivative Financial Instruments Derivative Financial Instruments - Schedule of LIBOR interest rate caps (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 04, 2021 | Feb. 02, 2021 | Dec. 31, 2020 | Nov. 01, 2020 | Jul. 01, 2020 | Mar. 02, 2020 | Jan. 28, 2020 | Jan. 10, 2020 | May 15, 2019
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount | $ 938,714 |  |  | $ 874,606 |  |  |  |  |  |
Interest rate caps | LIBOR |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount | 598,854 |  |  |  |  |  |  |  |  |
Premium Paid | 920 |  |  |  |  |  |  |  |  |
Not designated as accounting hedges |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount | 264,480 |  |  | 200,000 |  |  |  |  |  |
Not designated as accounting hedges | Interest rate caps |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount | 214,480 |  |  | 150,000 |  |  |  |  |  |
Not designated as accounting hedges | Interest rate caps | LIBOR |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount |  | $ 14,479 | $ 100,000 |  |  |  |  |  |  | $ 100,000
Strike Rate |  | 2.50% | 0.50% |  |  |  |  |  |  | 2.50%
Premium Paid |  | $ 4 | $ 45 |  |  |  |  |  |  | $ 288
Designated as accounting hedge | Interest rate caps |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount | $ 384,375 |  |  | $ 384,375 |  |  |  |  |  |
Designated as accounting hedge | Interest rate caps | LIBOR |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  | $ 100,000 | $ 100,000 | $ 50,000 | $ 50,000 |
Strike Rate |  |  |  |  |  | 0.50% | 1.50% | 1.75% | 1.75% |
Premium Paid |  |  |  |  |  | $ 232 | $ 111 | $ 62 | $ 87 |
Designated as accounting hedge | Interest rate caps | SOFR |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  | $ 84,375 |  |  |  |  |
Strike Rate |  |  |  |  | 1.84% |  |  |  |  |
Premium Paid |  |  |  |  | $ 91 |  |  |  |  |

X
- Definition Premiums paid on derivative instruments. + References No definition available. + Details
Name: | ahh_PremiumsPaidOnDerivativeInstruments
Namespace Prefix: | ahh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract. + References No definition available. + Details
Name: | us-gaap_DerivativeCapInterestRate
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_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateCapMember
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_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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