Annual report pursuant to section 13 and 15(d)

Consolidated and Combined Statements of Equity (Parenthetical)

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Consolidated and Combined Statements of Equity (Parenthetical) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Statement Of Stockholders Equity [Abstract]    
Common stock issuance expense   $ 2,700,000
Reclass of preferred stock to equity, offering expenses $ 556,064