XML 61 R49.htm IDEA: XBRL DOCUMENT v3.10.0.1

Real Estate - Schedule of Development in Process Activities (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) property	Dec. 31, 2017 USD ($) property
Property, Plant and Equipment [Line Items]
Number of properties under development | property	4	5
Real estate under development	$ 189,387	$ 173,702
Transfers In	0
Capitalized Costs	30,229
Transfers Out	$ 14,544
Core Portfolio
Property, Plant and Equipment [Line Items]
Number of properties under development | property	1	2
Real estate under development	$ 7,842	$ 21,897
Transfers In	0
Capitalized Costs	489
Transfers Out	$ 14,544
Fund Portfolio | Fund II
Property, Plant and Equipment [Line Items]
Number of properties under development | property	0	0
Real estate under development	$ 6,039	$ 4,908
Transfers In	0
Capitalized Costs	1,131
Transfers Out	$ 0
Fund Portfolio | Fund III
Property, Plant and Equipment [Line Items]
Number of properties under development | property	2	2
Real estate under development	$ 91,063	$ 63,939
Transfers In	0
Capitalized Costs	27,124
Transfers Out	$ 0
Fund Portfolio | Fund IV
Property, Plant and Equipment [Line Items]
Number of properties under development | property	1	1
Real estate under development	$ 84,443	$ 82,958
Transfers In	0
Capitalized Costs	1,485
Transfers Out	$ 0

X

- Definition

Development in process, capitalized costs.

+ References

No definition available.

+ Details

Name:	akr_DevelopmentInProcessCapitalizedCosts
Namespace Prefix:	akr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Development in process, transfers in.

+ References

No definition available.

+ Details

Name:	akr_DevelopmentInProcessTransfersIn
Namespace Prefix:	akr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Development in process, transfers out.

+ References

No definition available.

+ Details

Name:	akr_DevelopmentInProcessTransfersOut
Namespace Prefix:	akr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number of real estate properties under development.

+ References

No definition available.

+ Details

Name:	akr_NumberOfRealEstatePropertiesUnderDevelopment
Namespace Prefix:	akr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The current amount of expenditures for a real estate project that has not yet been completed.

+ 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 210.7-03.10)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_DevelopmentInProcess
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=akr_CorePortfolioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=akr_FundPortfolioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=akr_FundIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=akr_FundIIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=akr_FundIVMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: