Summary of Significant Accounting Policies (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Apr. 24, 2012
Change in Stockholder Equity Due to Shareholder Amendment [Line Items]
Common Stock, shares authorized (in shares)	500,000,000	500,000,000	250,000,000
Common Stock, par value per share (in dollars per share)	$ 0.01	$ 0.01	$ 3.33
Shareholder Amendment [Member]
Change in Stockholder Equity Due to Shareholder Amendment [Line Items]
Common Stock, shares authorized (in shares)			500,000,000
Common Stock, par value per share (in dollars per share)			$ 0.01