XML 77 R80.htm IDEA: XBRL DOCUMENT
v2.4.1.9

EMPLOYEE 401(K) PLAN (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract] |  |  |
Employer matching contribution (in percent) | 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent |  |
Maximum annual contribution per employee (in percent) | 6.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent |  |
Maximum employee annual salary contribution (in percent) | 15.00%akr_DefinedContributionPlanMaximumEmployeeAnnualSalaryContributionPercentage |  |
Maximum employee annual salary contribution amount | $ 17,500 akr_DefinedContributionPlanMaximumEmployeeAnnualSalaryContributionAmount |  |
Employer contribution | $ 300,000 us-gaap_DefinedContributionPlanCostRecognized | $ 300,000 us-gaap_DefinedContributionPlanCostRecognized | $ 300,000 us-gaap_DefinedContributionPlanCostRecognized

X
- Definition Defined Contribution Plan, Maximum employee annual salary contribution amount + References No definition available. + Details
Name: | akr_DefinedContributionPlanMaximumEmployeeAnnualSalaryContributionAmount
Namespace Prefix: | akr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Defined Contribution Plan, Maximum employee annual salary contribution percentage + References No definition available. + Details
Name: | akr_DefinedContributionPlanMaximumEmployeeAnnualSalaryContributionPercentage
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration