Consolidated Balance Sheet Going Concern Basis (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013
Investments in real estate, variable interest entities	$ 614,420
Cash and cash equivalents, variable interest entities	112,512
Restricted cash held in escrows, variable interest entities	13,372
Allowances on accounts receivable	414
Lease intangibles, variable interest entities	49,866
Mortgage loans payable, variable interest entities	90,404
Notes payable, variable interest entities	1,742
Below market lease intangibles, variable interest entities	2,399
Series D Cumulative Redeemable Preferred Shares, liquidation preference	$ 25
Series D Cumulative Redeemable Preferred Shares, shares authorized	5,060,000
Series D Cumulative Redeemable Preferred Shares, shares issued	4,820,000
Series D Cumulative Redeemable Preferred Shares, shares outstanding	4,820,000
Common Shares, par value	$ 1
Common Shares, shares authorized		[1]
Common Shares, shares issued	36,401,438
Common Shares, shares outstanding	36,401,438
Variable Interest Entities [Member]
Investments in real estate, variable interest entities	65,275
Cash and cash equivalents, variable interest entities	1,163
Restricted cash held in escrows, variable interest entities	7,340
Lease intangibles, variable interest entities	20,043
Notes payable, variable interest entities	942
Below market lease intangibles, variable interest entities	$ 527

[1] Unlimited