Distribution Reinvestment and Share Purchase Plan	12 Months Ended
Dec. 31, 2010
Distribution Reinvestment and Share Purchase Plan [Abstract]
Distribution Reinvestment and Share Purchase Plan	16. Distribution Reinvestment and Share Purchase Plan On November 3, 1997, the Company filed with the SEC a Form S-3 Registration Statement to register 14,000,000 Common Shares pursuant to a Distribution Reinvestment and Share Purchase Plan (the “DRIP Plan”). The registration statement was declared effective on November 25, 1997. The remaining shares available for issuance under the 1997 registration lapsed in December 2008. On December 16, 2008, the Company filed with the SEC a Form S-3 Registration Statement to register 5,000,000 Common Shares under the DRIP Plan. The registration statement was automatically declared effective the same day and expires at the earlier of the date in which all 5,000,000 shares have been issued or December 15, 2011. The Company has 4,905,736 Common Shares available for issuance under the DRIP Plan at December 31, 2010. The DRIP Plan provides holders of record and beneficial owners of Common Shares and Preferred Shares with a simple and convenient method of investing cash distributions in additional Common Shares (which is referred to herein as the “Dividend Reinvestment — DRIP Plan”). Common Shares may also be purchased on a monthly basis with optional cash payments made by participants in the DRIP Plan and interested new investors, not currently shareholders of the Company, at the market price of the Common Shares less a discount ranging between 0% and 5%, as determined in accordance with the DRIP Plan (which is referred to herein as the “Share Purchase — DRIP Plan”). Common Shares purchased under the DRIP Plan may, at the option of the Company, be directly issued by the Company or purchased by the Company’s transfer agent in the open market using participants’ funds.

16. Distribution Reinvestment and Share Purchase Plan

On November 3, 1997, the Company filed with the SEC a Form S-3 Registration Statement to register 14,000,000 Common Shares pursuant to a Distribution Reinvestment and Share Purchase Plan (the “DRIP Plan”). The registration statement was declared effective on November 25, 1997. The remaining shares available for issuance under the 1997 registration lapsed in December 2008.

On December 16, 2008, the Company filed with the SEC a Form S-3 Registration Statement to register 5,000,000 Common Shares under the DRIP Plan. The registration statement was automatically declared effective the same day and expires at the earlier of the date in which all 5,000,000 shares have been issued or December 15, 2011. The Company has 4,905,736 Common Shares available for issuance under the DRIP Plan at December 31, 2010.

The DRIP Plan provides holders of record and beneficial owners of Common Shares and Preferred Shares with a simple and convenient method of investing cash distributions in additional Common Shares (which is referred to herein as the “Dividend Reinvestment — DRIP Plan”). Common Shares may also be purchased on a monthly basis with optional cash payments made by participants in the DRIP Plan and interested new investors, not currently shareholders of the Company, at the market price of the Common Shares less a discount ranging between 0% and 5%, as determined in accordance with the DRIP Plan (which is referred to herein as the “Share Purchase — DRIP Plan”). Common Shares purchased under the DRIP Plan may, at the option of the Company, be directly issued by the Company or purchased by the Company’s transfer agent in the open market using participants’ funds.