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Common Stock Offering (Notes)	9 Months Ended
Common Stock Offering (Notes)	Sep. 30, 2013
Equity [Abstract]
Common Stock Offering	COMMON STOCK OFFERING On May 1, 2013, the Company completed an offering of 5,462,500 shares of its common stock at a public offering price of $18.00 per share minus the underwriters’ discount of $1.08 per share. The Company received net proceeds of approximately $92.0 million, after deducting underwriting discounts and commissions and offering expenses (approximately $0.4 million) paid by the Company.