Debt Instrument, Issue Price, Percentage

No definition available.

Name:	ahh_DebtInstrumentIssuePricePercentage
Namespace Prefix:	ahh_
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Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

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

- Definition

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

+ References

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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Nominal or face amount used to calculate payment on derivative.

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+ Details

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

- Definition

Amount of premium paid on derivative.

+ References

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

- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow to reacquire common stock during the period.

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

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow from repayment of borrowings to finance the cost of construction.

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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- Details

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Subsequent Events (Details) - USD ($) $ in Thousands			1 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Jul. 22, 2025	Jun. 10, 2025	Jul. 31, 2025	Jul. 24, 2025	Jun. 30, 2025	May 04, 2025	Dec. 31, 2024
Subsequent Event [Line Items]
Repayments of construction loan		$ 90,000
Notional amount					$ 1,234,532		$ 1,186,057
Interest rate swaps
Subsequent Event [Line Items]
Notional amount					$ 1,234,532	$ 100,000
Subsequent event
Subsequent Event [Line Items]
Repayments of revolving credit facility	$ 48,000
Subsequent event \| Interest rate swaps
Subsequent Event [Line Items]
Notional amount				$ 820,000
Derivative, variable interest rate				2.25%
Amount paid to buy down the swap fixed rate				$ 14,000
Subsequent event \| Common Class A
Subsequent Event [Line Items]
Stock redeemed (in shares)			1,789
Payments for repurchase of common stock			$ 100
Term Loan Facility \| Subsequent event
Subsequent Event [Line Items]
Repayments of construction loan	65,000
Line of Credit \| Subsequent event \| Revolving credit facility
Subsequent Event [Line Items]
Proceeds from lines of credit			$ 20,000
Private Placement Notes \| Term Loan Facility \| Subsequent event
Subsequent Event [Line Items]
Debt instrument, face amount	$ 115,000
Issue price, percentage of aggregate principal amount	100.00%
Private Placement Notes Due2028 \| Term Loan Facility \| Subsequent event
Subsequent Event [Line Items]
Debt instrument, face amount	$ 25,000
Debt instrument, interest rate, stated percentage	5.57%
Private Placement Notes Due 2030 \| Term Loan Facility \| Subsequent event
Subsequent Event [Line Items]
Debt instrument, face amount	$ 45,000
Debt instrument, interest rate, stated percentage	5.78%
Private Placement Notes Due 2032 \| Term Loan Facility \| Subsequent event
Subsequent Event [Line Items]
Debt instrument, face amount	$ 45,000
Debt instrument, interest rate, stated percentage	6.09%