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DEBT (Tables) | 3 Months Ended
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Mar. 31, 2014
Schedule of Debt Outstanding | Debt outstanding as of March 31, 2014 and December 31, 2013 consists of the following (in thousands):
|  | March 31, 2014 |  |  | December 31, 2013 |
Revolving Credit Facility, principal due at maturity in December 2017; interest payable periodically at variable interest rates. The weighted average rate at March 31, 2014 and December 31, 2013 was 1.9% and 1.7%, respectively. |  | $ | 520,000 |  |  | $ | 530,000 |
4.625% Senior Notes, principal due at maturity in May 2023; interest payable semi-annually in May and November at 4.625%. |  |  | 350,000 |  |  |  | 350,000 |
4.125% Senior Notes, principal due at maturity in April 2020; interest payable semi-annually in April and October at 4.125%. |  |  | 325,000 |  |  |  | 325,000 |
|  | $ | 1,195,000 |  |  | $ | 1,205,000 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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