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Subsequent Event	6 Months Ended
Subsequent Event	Jun. 30, 2011
Subsequent Event
Subsequent Event	NOTE 14—SUBSEQUENT EVENT On July 7, 2011, we replaced our existing $300.0 million revolving credit facility with a new $400.0 million unsecured revolving credit facility. This new revolving credit facility matures on July 6, 2015, subject to a one-year extension at our option, and bears interest at LIBOR plus 115 basis points. The spread over LIBOR is subject to adjustment based on our credit rating.