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Debt Instruments
9 Months Ended
Sep. 30, 2011
Debt Instruments 
Debt Instruments
7. Debt Instruments

In April 2011, the Company entered into a $50.0 million revolving line of credit facility with Barclays Bank PLC. The facility has a term of one-year and the Company can use borrowings for general corporate purposes. The credit facility contains affirmative, negative and financial covenants. Outstanding borrowings under the credit facility bear interest at an annual fluctuating rate tied to certain financial indices plus an agreed upon margin. The credit facility is currently scheduled to expire in April 2012, at which time any outstanding balance will be due. As of September 30, 2011, no borrowings were outstanding under this credit facility.