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Fair Value Measurements - Interest Rate Derivatives (Details) - Interest rate derivatives - Cash flow hedges | 3 Months Ended
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Mar. 31, 2018 USD ($) item
Fair Value Measurements |
Number of interest rate derivatives held | 28
Number of mortgage loans outstanding | 28
Number of mortgage loans designated as cash flow hedges | 28
Notional Amount | $ | $ 132,039,000
Weighted average maturity | 6 years 9 months 18 days
Weighted average annual interest rate (as a percent) | 4.11%
Minimum |
Fair Value Measurements |
Fixed Interest Rate (as a percent) | 3.02%
Maximum |
Fair Value Measurements |
Fixed Interest Rate (as a percent) | 5.38%

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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 Represents the number of mortgage loans outstanding related to derivative instruments at the balance sheet date. + References No definition available. + Details
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- Definition Represents the number of mortgage loans designated as cash flow hedges. + References No definition available. + Details
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- Definition Average fixed interest rate related to the group of interest rate derivatives. + References No definition available. + Details
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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + 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=64837297&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=64837297&loc=SL5579245-113959 + Details
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