Line Of Credit	3 Months Ended
Feb. 29, 2012
Line Of Credit [Abstract]
Line Of Credit	Note 7: 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 February 29, 2012, there were no amounts outstanding under the revolving line and $0.2 million of letters of credit.

Note 7: 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 February 29, 2012, there were no amounts outstanding under the revolving line and $0.2 million of letters of credit.