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Summary of Significant Accounting Policies - Basis of Presentation and Real Estate Properties (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Basis of Presentation |  |  |
Ownership interest in subsidiaries (as a percent) | 100.00% |  |
Assets of taxable REIT subsidiaries | $ 2,879 |  |
Liabilities of taxable REIT subsidiaries | 950 |  |
Real Estate Properties |  |  |
Increase (decrease) in capitalized above and below market leases rental income | 4,060 | $ 2,322 | $ (3,656)
Amortization of acquired real estate leases and other intangible assets | $ 80,040 | $ 38,970 | $ 22,718
Furniture and Fixtures [Member] | Real Estate Investment [Member] | Maximum |  |  |
Real Estate Properties |  |  |
Estimated useful lives | 40 years |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) and liabilities in a systematic and rational manner to the periods expected to be impacted from such assets and liabilities. As a noncash expense/ income, this element is added back to/deducted from net income when calculating cash provided by (used in) operations using the indirect method. + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5710-111685 + Details
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