Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v2.4.1.9
Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 215,456,000us-gaap_CommonStockSharesAuthorized 215,456,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 149,985,476us-gaap_CommonStockSharesIssued 130,575,516us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 139,297,282us-gaap_CommonStockSharesOutstanding 119,887,322us-gaap_CommonStockSharesOutstanding