Fair Value Measurements - Fair Value by Balance Sheet Grouping (Details) - Mortgage notes payable - Fair Value, Inputs, Level 3 $ in Thousands	Dec. 31, 2015 USD ($)
Carrying Amount
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value of mortgage notes payable	$ 1,357,080
Fair Value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value of mortgage notes payable	$ 1,357,519

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13476-108611

Name:	us-gaap_DebtInstrumentFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant