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Financial Derivative Instruments (Schedule of Notional Amounts of Outstanding Derivative Positions) (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Derivative [Line Items] |  |
Unamortized Premium | $ 4,566 | $ 4,566
Fair Value | 3,206 | $ 3,455
Interest Rate Cap [Member] |  |
Derivative [Line Items] |  |
Notional Amount | 90,000 |
Cap Interest Rate |  | 3.00%
Premium Paid | 0 | $ 4,566
Fair Value | 3,206 |
Interest Rate Cap 1 [Member] |  |
Derivative [Line Items] |  |
Notional Amount | $ 25,000 |
Termination Date | Jun. 02, 2021 |
Cap Interest Rate | 3.00% |
Premium Paid | $ 922 |
Unamortized Premium | 922 |
Fair Value | $ 509 |
Cash Flow Hedge Derivative Instrument Assets at Fair Value |  |
Interest Rate Cap 2 [Member] |  |
Derivative [Line Items] |  |
Notional Amount | $ 20,000 |
Termination Date | Jun. 04, 2024 |
Cap Interest Rate | 3.00% |
Premium Paid | $ 1,470 |
Unamortized Premium | 1,470 |
Fair Value | $ 954 |
Cash Flow Hedge Derivative Instrument Assets at Fair Value |  |
Interest Rate Cap 3 [Member] |  |
Derivative [Line Items] |  |
Notional Amount | $ 20,000 |
Termination Date | Oct. 21, 2021 |
Cap Interest Rate | 3.00% |
Premium Paid | $ 632 |
Unamortized Premium | 632 |
Fair Value | $ 462 |
Cash Flow Hedge Derivative Instrument Assets at Fair Value |  |
Interest Rate Cap 4 [Member] |  |
Derivative [Line Items] |  |
Notional Amount | $ 25,000 |
Termination Date | Oct. 21, 2024 |
Cap Interest Rate | 3.00% |
Premium Paid | $ 1,542 |
Unamortized Premium | 1,542 |
Fair Value | $ 1,281 |
Cash Flow Hedge Derivative Instrument Assets at Fair Value |  |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Fair value of all asset derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 + 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, after offset of derivative liability, of 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, before offset against an obligation to return collateral under a master netting arrangement. 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 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226006-175313 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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