Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Subsequent Events - Narrative (Details) (Subsequent event, USD $)	0 Months Ended
	Oct. 28, 2014 trustee	Oct. 31, 2014 Mortgage Mortgage loan encumbering 6200 Glenn Carlson Drive	Oct. 01, 2014 Mortgage Mortgage loan encumbering 6200 Glenn Carlson Drive	Oct. 01, 2014 Mortgage Mortgage loan encumbering 6200 Glenn Carlson Drive
Subsequent Event [Line Items]
Repayment of debt		$ 7,800,000
Redemption value			$ 125,000,000.0
Interest rate stated percentage				7.50%
Number of independent trustees granted fully vested common shares	5