Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	25,000,000us-gaap_PreferredStockSharesAuthorized	25,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000us-gaap_CommonStockSharesAuthorized	500,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, Shares, Issued	373,121,054us-gaap_CommonStockSharesIssued	372,005,502us-gaap_CommonStockSharesIssued
Common Stock, Shares, Outstanding	373,121,054us-gaap_CommonStockSharesOutstanding	372,005,502us-gaap_CommonStockSharesOutstanding

Face amount or stated value per share of common stock.

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