Interim Financial Statements (Summary Of Non-Cash Investing And Financing Activities) (Details) (Business Combinations [Member], USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Business Combinations [Member]
Increase in other assets		$ 148,255
Decrease in notes receivable from real estate joint ventures and partnerships	21,872	123,912
Increase in debt, net		101,741
Increase in property, net	32,307	32,940
Decrease in other liabilities, net		21,858
Decrease in noncontrolling interests		18,573
Decrease in investment in real estate joint ventures and partnerships	$ 10,092

The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References+ Details

The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References+ Details

- Definition

The amount of assets that an Entity acquires in a noncash (or part noncash) acquisition that are not presented as a separate disclosure or not otherwise listed in the existing taxonomy. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period.

+ References+ Details

- Definition

The amount of liabilities that an entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References+ Details