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Debt Debt
6 Months Ended
Jun. 30, 2015
Debt Disclosure [Abstract]  
Debt
DEBT
                     
Our credit agreement, dated August 12, 2014, provides for a revolving line of credit up to $250 million, which includes $40 million for the issuance of stand by letters of credit and $25 million for swingline loans. At June 30, 2015, $15.0 million was outstanding under the revolving line of credit and approximately $1.4 million was utilized by outstanding letters of credit, resulting in $233.6 million available for additional borrowings.