XML 74 R37.htm IDEA: XBRL DOCUMENT v2.3.0.15
Common Shares (Narrative) (Details) (USD $)
9 Months Ended1 Months Ended3 Months Ended9 Months Ended1 Months Ended3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Dec. 31, 2010
Mar. 31, 2010
2010 ATM Program [Member]
Sep. 30, 2011
2010 ATM Program [Member]
Sep. 30, 2011
2010 ATM Program [Member]
Nov. 04, 2011
2011 ATM Program [Member]
May 31, 2011
2011 ATM Program [Member]
Sep. 30, 2011
2011 ATM Program [Member]
Sep. 30, 2011
2011 ATM Program [Member]
Number of common and preferred stock authorized to issue110,000,000         
Common shares, authorized100,000,000 100,000,000       
Preferred shares, authorized10,000,000         
Common shares, outstanding71,400,000         
Preferred shares, outstanding0         
Maximum aggregate offering price of common shares   $ 250,000,000   $ 300,000,000  
Common shares sold    0252,5000 506,200875,400
Total net consideration69,863,000134,617,000   13,847,000  32,736,80056,015,900
Maximum aggregate offering price of remaining common shares available for sale         $ 242,900,000