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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Event In January 2014 the Company's Board of Directors approved the filing of a follow-on offering for the sale of up to 16,100,000 shares of common stock to the public including up to 2,100,000 additional shares the underwriters have the option to purchase to cover over-allotments.