v3.4.0.3
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Commitments And Contingencies Disclosure [Abstract]
Outstanding borrowings
$ 272
$ 273
X
- Definition
Line of credit facility gross amount borrowed.
+ References
No definition available.
+ Details
Name:
arex_LineOfCreditFacilityGrossAmountBorrowed
Namespace Prefix:
arex_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration