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Derivative Financial Instruments (Details) (USD $) | 9 Months Ended |  | 3 Months Ended | 9 Months Ended |  | 3 Months Ended | 9 Months Ended |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2014 Non-Qualifying Basis Swaps item | Sep. 30, 2013 Non-Qualifying Basis Swaps item | Dec. 31, 2013 Non-Qualifying Basis Swaps item | Sep. 30, 2014 Non-Qualifying Basis Swaps Maximum | Sep. 30, 2013 Non-Qualifying Basis Swaps Maximum | Sep. 30, 2014 Non-Qualifying Basis Swaps Maximum | Sep. 30, 2013 Non-Qualifying LIBOR Caps | Sep. 30, 2014 Non-Qualifying LIBOR Caps item | Sep. 30, 2014 Non-Qualifying LIBOR Caps Maximum | Sep. 30, 2013 Non-Qualifying LIBOR Caps Maximum | Sep. 30, 2014 Non-Qualifying LIBOR Caps Maximum | Dec. 31, 2013 Non-Qualifying Forward Contracts item | Sep. 30, 2014 Qualifying | Sep. 30, 2013 Qualifying LIBOR Caps | Sep. 30, 2014 Qualifying Interest Rate Swaps item | Sep. 30, 2013 Qualifying Interest Rate Swaps | Dec. 31, 2013 Qualifying Interest Rate Swaps item
Derivative Financial Instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Count | 1 |  | 1 |  |  |  |  | 1 |  |  |  | 8 |  |  | 12 |  | 14
Notional Value, classified in Other Assets | $ 3,000,000 |  | $ 11,600,000 |  |  |  |  | $ 71,701,000 |  |  |  |  |  |  |  |  |
Notional Value, classified in Other Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250,377,000 |  | 297,532,000
Fair Value, classified in Other Assets | 3,000 |  | 5,000 |  |  |  |  |  |  |  |  | 6,397,000 |  |  |  |  |
Fair Value, classified in Other Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (16,335,000) |  | (24,794,000)
Number of swaps matured |  | 7 |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |
Notional value of matured instruments |  | 499,400,000 |  |  |  |  | 6,000,000 |  |  |  |  |  |  | 73,300,000 | 32,000,000 |  |
Interest expense expected to be reclassified from qualifying cash flow hedges over the next twelve months |  |  |  |  |  |  |  |  |  |  |  |  | (10,500,000) |  |  |  |
Number of derivative instruments, the notional amount of which decreased |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease in notional value | 8,600,000 | 92,600,000 |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 | 14,500,000 |
Cap rate (as a percent) |  |  |  |  |  |  |  | 6.00% |  |  |  |  |  |  |  |  |
Change in fair value |  | $ (100,000) |  | $ (100,000) | $ (100,000) | $ (100,000) | $ (100,000) |  | $ (100,000) | $ (100,000) | $ (100,000) |  |  |  |  |  |

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- Definition Represents the decrease in the notional value of derivative instruments. + References No definition available. + Details
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- Definition Represents the number of derivative instruments, the notional amount of which decreased. + References No definition available. + Details
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- Definition The number of derivative instruments matured during the period. + References No definition available. + Details
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- Definition Represents the notional value of derivative instruments that have matured during the reporting period. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract. + References No definition available. + 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. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: 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=34720828&loc=SL20225862-175312 Reference 2: 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=35706170&loc=SL5624163-113959 Reference 3: 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=36459792&loc=SL20226000-175313 + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or 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. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: 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=34720828&loc=SL20225862-175312 Reference 2: 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=35706170&loc=SL5624163-113959 Reference 3: 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=36459792&loc=SL20226000-175313 + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 + Details
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- Definition The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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