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v3.4.0.3

Notes Payable (Narrative) (Details) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2016 USD ($) yr | Dec. 31, 2015 USD ($) | Mar. 31, 2015 USD ($)
Unamortized debt discounts and debt issuance costs | $ 17.9 |  | $ 18.6 |  |
Notes payable | $ 2,765.8 |  | 2,724.7 |  |
Weighted Average Interest Rate | 4.10% |  |  |  |
Weighted average maturity of indebtedness (including unsecured line of credit) (in years) | yr | 5.4 |  |  |  |
Letter Of Credit [Member] |  |  |  |  |
Maximum Ability to Issue Letters of Credit Under Unsecured Credit Facility | $ 50.0 |  |  |  |
Outstanding balance under credit facility | 9.4 |  |  |  |
Unsecured Credit Facility [Member] |  |  |  |  |
Outstanding balance under credit facility | 265.0 |  |  |  |
Short-term Debt [Member] |  |  |  |  |
Maximum borrowing capacity under unsecured credit facility | $ 40.0 |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.05% |  |  |  |
Unsecured Short-term Borrowings | $ 20.0 |  |  |  |
Debt Instrument, Maturity Date | May 14, 2016 |  |  |  |
Unsecured Credit Facility [Member] |  |  |  |  |
Unsecured Credit Facility, Current Borrowing Capacity | $ 600.0 |  |  |  |
Unsecured Credit Facility, Expiration Date | Aug. 07, 2019 |  |  |  |
Optional extension period of unsecured credit facility | August 2020 |  |  |  |
Maximum borrowing capacity under unsecured credit facility | $ 900.0 |  |  |  |
Maximum term of bid rate loans (days) | 180 |  |  |  |
Lesser of amount stated or the amount available under the unsecured credit facility | $ 300.0 |  |  |  |
Available amount under unsecured credit facility | 325.6 |  |  |  |
Floating rate notes payable [Member] |  |  |  |  |
Notes payable | $ 492.1 | [1] | $ 451.4 | [1] | $ 208.8
Weighted Average Interest Rate | 1.40% |  |  |  | 1.00%
[1] | Includes balances outstanding under our unsecured credit facility and unsecured short-term borrowings.

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- Definition Maximum term of bid rate loans in days related to the line of credit. Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans with participating banks at rates below the scheduled rates + References No definition available. + Details
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- Definition Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans with participating banks at rates below the scheduled rates. These bid rate loans have terms of 180 days or less and may not exceed the lesser of $250 million or the remaining amount available under the line of credit. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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