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Line of Credit	6 Months Ended
Line of Credit	May 31, 2013
Line of Credit Facility [Abstract]
Line of Credit	Line of Credit Our credit facility provides for a revolving line of credit in the amount of $150.0 million, with a sublimit for the issuance of standby letters of credit in a face amount up to $25.0 million and swing line loans up to $20.0 million. The credit facility also permits us to increase the revolving line of credit by up to an additional $75.0 million subject to receiving further commitments from lenders and certain other conditions. As of May 31, 2013, there were no amounts outstanding under the revolving line and $0.4 million of letters of credit.

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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