Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Stockholders' equity:    
Common stock, par value (in dollars per share) $ 0.0075 $ 0.0075
Common shares, shares authorized (in shares) 138,666,666 138,666,666
Common shares, shares outstanding (in shares) 105,386,216 82,447,274