Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues:
Community base rental income	$ 106,045	$ 100,776
Rental home income	3,757	3,394
Resort base rental income	44,949	40,739
Right-to-use annual payments	11,214	11,523
Right-to-use contracts current period, gross	2,923	2,831
Right-to-use contracts, deferred, net of prior period amortization	(1,147)	(1,040)
Utility And Other Income	17,571	16,683
Gross revenues from home sales	5,178	2,696
Brokered resale revenues and ancillary services revenues, net	1,799	1,795
Interest income	2,697	1,898
Income from other investments, net	1,601	2,480
Total revenues	196,587	183,775
Expenses:
Property operating and maintenance	58,696	55,055
Rental home operating and maintenance	1,908	1,870
Real estate taxes	12,485	12,400
Sales and marketing, gross	2,405	2,361
Sales and marketing, deferred commissions, net	(555)	(463)
Property management	10,632	10,133
Depreciation on real estate and rental homes	27,642	26,020
Amortization of Intangible Assets for Continuing Operations	1,315	159
Cost of home sales	5,368	2,781
Home selling expenses	569	527
General and administrative	5,760	6,711
Rent control initiatives and other	311	232
Interest and related amortization	28,048	30,123
Total expenses	154,584	147,909
Income before equity in income of unconsolidated joint ventures	42,003	35,866
Equity income from unconsolidated joint ventures	1,887	576
Consolidated income from continuing operations	43,890	36,442
Net income from discontinued operations	0	3,068
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	0	958
Income allocated to non-controlling interest - discontinued operations	0	4,026
Noncontrolling Interest in Net Income (Loss) Operating Partnerships, Redeemable	(3,481)	(3,133)
Net income (loss) available for Common Shares – basic	38,099	35,024
Consolidated net income	43,890	40,468
Other comprehensive loss:
Adjustment for fair market value of swap	445	442
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	44,335	40,910
Comprehensive income (loss) attributable to Common Shareholders	38,507	35,430
Earnings per Common Share - Basic:
Income from continuing operations	$ 0.46	$ 0.38
Income from discontinued operations	$ 0.00	$ 0.04
Net income available for Common Shares	$ 0.46	$ 0.42
Earnings per Common Share - Fully Diluted:
Income from continuing operations	$ 0.46	$ 0.38
Income from discontinued operations	$ 0.00	$ 0.04
Net income available for Common Shares	$ 0.46	$ 0.42
Distributions declared per Common Share outstanding	$ 0.325	$ 0.25
Weighted average Common Shares outstanding – basic	83,116	83,026
Weighted average Common Shares outstanding – fully diluted	91,353	91,060
Cumulative Series C Six Point Seven Five Percent Redeemable Perpetual Preferred Stock [Member]
Other comprehensive loss:
Redeemable Preferred Stock Dividends	(2,310)	(2,311)
Non-controlling interests - Common OP Units
Other comprehensive loss:
Comprehensive income (loss) allocated to non-controlling interests	$ (3,518)	$ (3,169)