Organization (Details) (CWH)	Apr. 24, 2009 subsidiary
CWH
Related Party Transaction
Percentage of ownership of Initial Properties acquired by means of contribution from CWH to one of the Company's subsidiaries	100.00%
Number of subsidiaries receiving a contribution from CWH	1

Represents the entity's percentage of ownership of initial real estate properties acquired by means of contribution from the parent to one of the entity's subsidiaries.

No definition available.

Name:	gov_OwnershipPercentageOfInitialRealEstateProperties
Namespace Prefix:	gov_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant