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CREDIT AGREEMENTS (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of U.S. Credit Agreement | Selected details of our Credit Agreements as of and for the years ended December 31, 2012 and 2011 were as follows:
|  | As of December 31, |
|  | 2012(1) |  |  | 2011(2) |
|  | (Dollars in thousands) |
Credit Agreements: |  |  |  |  |  |  |  |
Credit facility remaining availability |  | $ | — |  |  | $ | 178,310 |
Credit facility borrowings |  | $ | 80,000 |  |  | $ | — |
Outstanding letters of credit(3) |  | $ | 6,981 |  |  | $ | 6,690 |
Availability for additional letters of credit |  | $ | — |  |  | $ | 43,310 |
Average daily revolving credit borrowings for the year ended |  | $ | 219 |  |  | $ | — |
Weighted average annual interest rate |  |  | 5.25 | % |  |  | 0.00 | %
Commitment fee rate |  |  | 0.25 | % |  |  | 0.10 | %
Letter of credit fee rate(3) |  |  | 0.50 | % |  |  | 0.50 | %
(1) | Details reflect terms under our existing Credit Agreement which was entered into during December 2012, except for our outstanding letters of credit.
(2) | Details reflect terms under our previous U.S. Credit Agreement which expired October 31, 2012.
(3) | Represents letters of credit which are fully collateralized with $7.4 million of restricted cash.

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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