Notes Payable	6 Months Ended
Jun. 30, 2013
Notes Payable [Abstract]
Notes Payable	NOTES PAYABLE We repaid without penalty the remaining $60.0 million of our 5.125% unsecured notes on their due date of March 15, 2013, using borrowings on our unsecured line of credit.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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