Organization - Narrative (Details)	Jun. 30, 2014 property
Office Properties
Business Acquisition
Number of real estate properties	26
Media and Entertainment Properties
Business Acquisition
Number of real estate properties	2

The number of real estate properties owned as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant