Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
PROPERTIES:
Operating properties, net of accumulated depreciation of $289,473 and $274,925 in 2011 and 2010, respectively	$ 884,652	$ 898,119
Projects under development	11,325	0
Land held for investment	54,132	123,879
Residential lots	13,195	63,403
Other	637	2,994
Total properties	963,941	1,088,395
CASH AND CASH EQUIVALENTS	4,858	7,599
RESTRICTED CASH	4,929	15,521
NOTES AND OTHER RECEIVABLES, net of allowance for doubtful accounts of $5,100 and $6,287 in 2011 and 2010, respectively	48,500	48,395
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES	160,587	167,108
OTHER ASSETS	52,720	44,264
TOTAL ASSETS	1,235,535	1,371,282
LIABILITIES AND EQUITY
NOTES PAYABLE	539,442	509,509
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	36,075	32,388
DEFERRED GAIN	3,980	4,216
DEPOSITS AND DEFERRED INCOME	15,880	18,029
TOTAL LIABILITIES	595,377	564,142
COMMITMENTS AND CONTINGENT LIABILITIES
REDEEMABLE NONCONTROLLING INTERESTS	2,763	14,289
Preferred stock, 20,000,000 shares authorized, $1 par value:
Common stock, $1 par value, 250,000,000 shares authorized, 107,272,078 and 106,961,959 shares issued in 2011 and 2010, respectively	107,272	106,962
Additional paid-in capital	687,835	684,551
Treasury stock at cost, 3,570,082 shares in 2011 and 2010	(86,840)	(86,840)
Distributions in excess of cumulative net income	(274,177)	(114,196)
TOTAL STOCKHOLDERS' INVESTMENT	603,692	760,079
Nonredeemable noncontrolling interests	33,703	32,772
TOTAL EQUITY	637,395	792,851
TOTAL LIABILITIES AND EQUITY	1,235,535	1,371,282
Series A Preferred Stock [Member]
Preferred stock, 20,000,000 shares authorized, $1 par value:
Cumulative redeemable preferred stock	74,827	74,827
Series B Preferred Stock [Member]
Preferred stock, 20,000,000 shares authorized, $1 par value:
Cumulative redeemable preferred stock	$ 94,775	$ 94,775