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Derivative and Other Fair Value Instruments (Details 1) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
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Derivatives, Fair Value [Line Items] |  |
Derivative asset, fair value | $ 1,452 | $ 18,710
Other Assets, Fair Value Disclosure | 97,543 | 83,845
Assets, Fair Value Disclosure | 98,995 | 102,555
Derivative liability, fair value | 2,346 |
Other Liabilities, Fair Value Disclosure | 97,543 | 83,845
Liabilities, Fair Value Disclosure | 99,889 | 83,845
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure | 440,050 | 363,144
Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative asset, fair value | 0 | 0
Other Assets, Fair Value Disclosure | 97,543 | 83,845
Assets, Fair Value Disclosure | 97,543 | 83,845
Derivative liability, fair value | 0 |
Other Liabilities, Fair Value Disclosure | 97,543 | 83,845
Liabilities, Fair Value Disclosure | 97,543 | 83,845
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative asset, fair value | 1,452 | 18,710
Other Assets, Fair Value Disclosure | 0 | 0
Assets, Fair Value Disclosure | 1,452 | 18,710
Derivative liability, fair value | 2,346 |
Other Liabilities, Fair Value Disclosure | 0 | 0
Liabilities, Fair Value Disclosure | 2,346 | 0
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure | 440,050 | 363,144
Fair Value, Inputs, Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative asset, fair value | 0 | 0
Other Assets, Fair Value Disclosure | 0 | 0
Assets, Fair Value Disclosure | 0 | 0
Derivative liability, fair value | 0 |
Other Liabilities, Fair Value Disclosure | 0 | 0
Liabilities, Fair Value Disclosure | 0 | 0
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure | $ 0 | $ 0

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- Definition Fair value as of the balance sheet date of non-controlling interests which are redeemable by the parent at a fixed or determinable price on a fixed or determinable date, at the option of the holder of the non-controlling interest, or upon occurrence of an event that is not solely within the control of the parent. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Fair value before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226000-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Fair value portion of other assets. + References No definition available. + Details
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- Definition Fair value portion of other liabilities. + References No definition available. + Details
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