$ELS
EQUITY LIFESTYLE PROPERTIES INC Stock $els

$els Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000089541713000009 Filed on February 28, 2013

Income Statement

Concept	2012 Q4	2012	2011 Q4
Revenue	$165.3M	$684.3M	$162.3M
YoY Change	1.84%	18.59%	33.96%
Cost Of Revenue	$77.00M	$319.4M	$76.00M
YoY Change	1.32%	14.36%	21.6%
Gross Profit	$58.37M	$358.1M	$41.44M
YoY Change	40.84%	22.93%	-35.45%
Gross Profit Margin	35.31%	52.33%	25.53%
Selling, General & Admin	$10.40M	$37.83M	$8.200M
YoY Change	26.83%	-28.99%	-6.82%
% of Gross Profit	17.82%	10.56%	19.79%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$26.40M	$105.6M	$42.00M
YoY Change	-37.14%	23.87%	183.78%
% of Gross Profit	45.23%	29.48%	101.34%
Operating Expenses	$36.80M	$37.83M	$50.90M
YoY Change	-27.7%	-28.99%	76.74%
Operating Profit	$21.57M	$206.4M	-$9.457M
YoY Change	-328.07%	16.73%	-126.71%
Interest Expense	-$29.90M	-$117.2M	-$30.50M
YoY Change	-1.97%	26.02%	42.52%
% of Operating Profit	-138.62%	-56.77%
Other Income/Expense, Net
YoY Change
Pretax Income	$21.20M	$61.85M	$3.500M
YoY Change	505.71%	54.59%	-66.02%
Income Tax			$0.00
% Of Pretax Income			0.0%
Net Earnings	$24.28M	$59.85M	-$160.0K
YoY Change	-15271.88%	127.15%	-102.81%
Net Earnings / Revenue	14.68%	8.75%	-0.1%
Basic Earnings Per Share	$0.29	$0.67	$0.00
Diluted Earnings Per Share	$0.29	$0.66	$0.00
COMMON SHARES
Basic Shares Outstanding	82.57M shares	82.35M shares	40.26M shares
Diluted Shares Outstanding	90.94M shares	90.86M shares	45.30M shares

Balance Sheet

Concept	2012 Q4	2012	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$32.20M	$32.20M	$66.30M
YoY Change	-51.43%	-51.43%	422.05%
Cash & Equivalents	$37.14M		$70.46M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory			$2.900M
Prepaid Expenses
Receivables			$1.200M
Other Receivables			$0.00
Total Short-Term Assets	$32.20M	$32.20M	$70.40M
YoY Change	-54.26%	-67.44%	331.9%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.096B	$3.096B	$3.265B
YoY Change	-5.18%	-5.18%	73.3%
Goodwill	$7.800M		$7.800M
YoY Change	0.0%
Intangibles	$4.300M		$4.300M
YoY Change	0.0%
Long-Term Investments	$8.400M	$8.400M	$8.600M
YoY Change	-2.33%	-2.33%	-85.83%
Other Assets	$196.1M	$196.1M	$75.40M
YoY Change	160.08%	318.12%	22.8%
Total Long-Term Assets	$3.366B	$3.366B	$3.426B
YoY Change	-1.73%	-0.92%	68.58%
TOTAL ASSETS
Total Short-Term Assets	$32.20M	$32.20M	$70.40M
Total Long-Term Assets	$3.366B	$3.366B	$3.426B
Total Assets	$3.399B	$3.398B	$3.496B
YoY Change	-2.79%	-2.8%	70.68%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable			$62.10M
YoY Change			17.61%
Accrued Expenses	$71.60M	$71.60M	$10.70M
YoY Change	569.16%	569.16%	48.61%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$71.60M	$71.60M	$89.70M
YoY Change	-20.18%	-20.18%	27.05%
LONG-TERM LIABILITIES
Long-Term Debt	$2.262B	$2.262B	$2.285B
YoY Change	-1.01%	-1.01%	61.7%
Other Long-Term Liabilities	$140.7M	$140.7M	$122.4M
YoY Change	14.95%	14.95%	16.91%
Total Long-Term Liabilities	$2.402B	$2.402B	$2.407B
YoY Change	-0.2%	-0.2%	58.61%
TOTAL LIABILITIES
Total Short-Term Liabilities	$71.60M	$71.60M	$89.70M
Total Long-Term Liabilities	$2.402B	$2.402B	$2.407B
Total Liabilities	$2.474B	$2.539B	$2.497B
YoY Change	-0.92%	-1.2%	37.08%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$1.013B		$998.9M
YoY Change	1.45%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$859.2M	$859.2M	$726.3M
YoY Change
Total Liabilities & Shareholders Equity	$3.398B	$3.398B	$3.496B
YoY Change	-2.8%	-2.8%	70.67%

Cashflow Statement

Concept	2012 Q4	2012	2011 Q4
OPERATING ACTIVITIES
Net Income	$24.28M	$59.85M	-$160.0K
YoY Change	-15271.88%	127.15%	-102.81%
Depreciation, Depletion And Amortization	$26.40M	$105.6M	$42.00M
YoY Change	-37.14%	23.87%	183.78%
Cash From Operating Activities	$47.50M	$236.4M	$55.30M
YoY Change	-14.1%	34.62%	93.36%
INVESTING ACTIVITIES
Capital Expenditures	-$46.30M	-$99.50M	-$158.2M
YoY Change	-70.73%	-86.05%	864.63%
Acquisitions
YoY Change
Other Investing Activities	$8.600M	$12.90M	-$9.000M
YoY Change	-195.56%	14.16%	-82.79%
Cash From Investing Activities	-$37.80M	-$86.57M	-$167.2M
YoY Change	-77.39%	-87.67%	143.38%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$1.287M
YoY Change		-100.38%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-120.6M	-$183.2M	-30.40M
YoY Change	296.71%	-131.37%	6.29%
NET CHANGE
Cash From Operating Activities	47.50M	$236.4M	55.30M
Cash From Investing Activities	-37.80M	-$86.57M	-167.2M
Cash From Financing Activities	-120.6M	-$183.2M	-30.40M
Net Change In Cash	-110.9M	-$33.33M	-142.3M
YoY Change	-22.07%	-157.67%	107.13%
FREE CASH FLOW
Cash From Operating Activities	$47.50M	$236.4M	$55.30M
Capital Expenditures	-$46.30M	-$99.50M	-$158.2M
Free Cash Flow	$93.80M	$335.9M	$213.5M
YoY Change	-56.07%	-62.2%	374.44%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	63736000	USD
CY2012Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	16100000	USD
CY2011Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	16400000	USD
CY2012Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	1206000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Prepaid Expense And Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaidExpenseAndOtherAssets	29000	USD
CY2011Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	1155000	USD
CY2012Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	20500000	USD
CY2011Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	15100000	USD
CY2011Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	270021000	USD
CY2012Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	287652000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-2590000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-2547000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1012930000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	998483000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5436000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5762000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5797000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	504000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4700000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4900000	USD
CY2011	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-1817000	USD
CY2010	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	13000	USD
CY2012	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-6764000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5305000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5754000	USD
CY2010	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3325000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	45122000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28479000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4600000	shares
CY2012Q4	us-gaap	Assets Assets	3398226000	USD
CY2011Q4	us-gaap	Assets Assets	3496101000	USD
CY2010Q4	us-gaap	Assets Assets	2048395000	USD
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	470403000	USD
CY2012Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	527718000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	344000000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	25000000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	1500000000	USD
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CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired BusinessAcquisitionPurchasePriceAllocationAssetsAcquired	1483000000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired BusinessAcquisitionPurchasePriceAllocationAssetsAcquired	25029000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	927000000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	24213000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Prepaid Expense And Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaidExpenseAndOtherAssets	18300000	USD
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CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Receivables BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables	40000000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Liabilities Accrued Liabilities BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccruedLiabilities	3000000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Liabilities Accrued Liabilities BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccruedLiabilities	376000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	816000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	556000000	USD
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CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	18493000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	180000	USD
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CY2012Q4	us-gaap	Cash Cash	37140000	USD
CY2011Q4	us-gaap	Cash Cash	70460000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	145128000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12659000	USD
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CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70460000	USD
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CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	57801000	USD
CY2012	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	1800000	USD
CY2011Q4	us-gaap	Certain Loans Acquired In Transfer Accretable Yield CertainLoansAcquiredInTransferAccretableYield	0.170	USD
CY2012Q4	us-gaap	Certain Loans Acquired In Transfer Accretable Yield CertainLoansAcquiredInTransferAccretableYield	0.210	USD
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CY2010Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.3000
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.20
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CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
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CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	41596655	shares
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CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	41078200	shares
CY2009Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30350792	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30972353	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	416000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	412000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	38354000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	20467000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	54741000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	39957000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	74415000	USD
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CY2012	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2011	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	200000000	USD
CY2011	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	200623000	USD
CY2010	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	185786000	USD
CY2012	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	226952000	USD
CY2011	us-gaap	Cost Of Real Estate Sales CostOfRealEstateSales	5683000	USD
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CY2012	us-gaap	Cost Of Real Estate Sales CostOfRealEstateSales	9475000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	548643000	USD
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	458698000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	641914000	USD
CY2012Q4	us-gaap	Customer Advances And Deposits CustomerAdvancesAndDeposits	55707000	USD
CY2011Q4	us-gaap	Customer Advances And Deposits CustomerAdvancesAndDeposits	54234000	USD
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CY2011	us-gaap	Deferred Compensation Arrangement With Individual Employer Contribution DeferredCompensationArrangementWithIndividualEmployerContribution	1100000	USD
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CY2011Q4	us-gaap	Deferred Compensation Cashbased Arrangements Liability Current And Noncurrent DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent	1800000	USD
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CY2012Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	22842000	USD
CY2011Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	19687000	USD
CY2010Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	14898000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	20696000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	23039000	USD
CY2012Q4	us-gaap	Deferred Revenue DeferredRevenue	62979000	USD
CY2011Q4	us-gaap	Deferred Revenue DeferredRevenue	56285000	USD
CY2010Q4	us-gaap	Deferred Revenue DeferredRevenue	44349000	USD
CY2011	us-gaap	Deferred Revenue Period Increase Decrease DeferredRevenuePeriodIncreaseDecrease	11936000	USD
CY2012	us-gaap	Deferred Revenue Period Increase Decrease DeferredRevenuePeriodIncreaseDecrease	6694000	USD
CY2012	us-gaap	Depreciation Depreciation	105578000	USD
CY2010	us-gaap	Depreciation Depreciation	72129000	USD
CY2011	us-gaap	Depreciation Depreciation	85235000	USD
CY2012	us-gaap	Derivative Instruments Loss Recognized In Other Comprehensive Income Effective Portion DerivativeInstrumentsLossRecognizedInOtherComprehensiveIncomeEffectivePortion	1797000	USD
CY2011	us-gaap	Derivative Instruments Loss Recognized In Other Comprehensive Income Effective Portion DerivativeInstrumentsLossRecognizedInOtherComprehensiveIncomeEffectivePortion	3445000	USD
CY2012	us-gaap	Description Of Lessee Leasing Arrangements Operating Leases DescriptionOfLesseeLeasingArrangementsOperatingLeases	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The leases entered into between the customer and the Company for the rental of a site are generally month-to-month or for a period of </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">one</font><font style="font-family:inherit;font-size:10pt;"> to </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">ten years</font><font style="font-family:inherit;font-size:10pt;">, renewable upon the consent of the parties or, in some instances, as provided by statute.</font></div></div>
CY2012	us-gaap	Description Of Lessor Leasing Arrangements Operating Leases DescriptionOfLessorLeasingArrangementsOperatingLeases	The majority of the lease terms require twelve equal payments per year plus additional rents calculated as a percentage of gross revenues. The Colony Cove Property lease requires escalated payments every three months based on the increase in the purchase option, see further detail below.
CY2010	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	-231000	USD
CY2011	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	4596000	USD
CY2012Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-12-28
CY2011Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-07-08
CY2010Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2010-07-09
CY2012Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-07-13
CY2011	us-gaap	Dividends Dividends	62573000	USD
CY2012	us-gaap	Dividends Dividends	79105000	USD
CY2011Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	16943000	USD
CY2011Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-10-14
CY2012Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-10-12
CY2011Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-01-13
CY2012Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-04-13
CY2010Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2010-10-08
CY2011Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-04-08
CY2010Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2010-04-09
CY2010Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-01-14
CY2010	us-gaap	Dividends Dividends	42509000	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	0	USD
CY2012Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-09-28
CY2012Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-12-14
CY2011Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-12-30
CY2011Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-03-25
CY2010Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2010-03-26
CY2010Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2010-12-31
CY2012Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-06-29
CY2011Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-09-30
CY2012Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-03-30
CY2011Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-06-24
CY2010Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2010-06-25
CY2010Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2010-09-24
CY2008Q3	us-gaap	Due To Other Related Parties Current And Noncurrent DueToOtherRelatedPartiesCurrentAndNoncurrent	2000000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.26
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.33
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.00
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.21
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.25
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.32
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2011	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1841000	USD
CY2010	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2831000	USD
CY2012	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1839000	USD
CY2010	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	3674000	USD
CY2011	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	830000	USD
CY2012	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1500000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1200000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	87000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	251000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	349000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	349000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	3500000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	4600000	USD
CY2010	us-gaap	Gain On Business Interruption Insurance Recovery GainOnBusinessInterruptionInsuranceRecovery	300000	USD
CY2011	us-gaap	Gain On Business Interruption Insurance Recovery GainOnBusinessInterruptionInsuranceRecovery	2600000	USD
CY2012	us-gaap	Gain On Business Interruption Insurance Recovery GainOnBusinessInterruptionInsuranceRecovery	400000	USD
CY2010	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	22559000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	26744000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	23833000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	7800000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	7800000	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2010	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3635000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	56854000	USD
CY2012Q1	us-gaap	Gross Profit GrossProfit	52960000	USD
CY2012Q4	us-gaap	Gross Profit GrossProfit	61523000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	40556000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	67963000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	58601000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	11654000	USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	51437000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	41443000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	40235000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	44743000	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	42291000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3862000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	25632000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1356000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	21492000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	29014000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	17653000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	6299000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1948000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2027000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1899000	USD
CY2010	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-494000	USD
CY2011	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-477000	USD
CY2012	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-409000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	6736000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-3041000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-7886000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4305000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2713000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3264000	USD
CY2011	us-gaap	Increase Decrease In Customer Advances IncreaseDecreaseInCustomerAdvances	1696000	USD
CY2012	us-gaap	Increase Decrease In Customer Advances IncreaseDecreaseInCustomerAdvances	1033000	USD
CY2010	us-gaap	Increase Decrease In Customer Advances IncreaseDecreaseInCustomerAdvances	3381000	USD
CY2012	us-gaap	Increase Decrease In Deferred Charges IncreaseDecreaseInDeferredCharges	5465000	USD
CY2010	us-gaap	Increase Decrease In Deferred Charges IncreaseDecreaseInDeferredCharges	6957000	USD
CY2011	us-gaap	Increase Decrease In Deferred Charges IncreaseDecreaseInDeferredCharges	6735000	USD
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	13433000	USD
CY2010	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	19496000	USD
CY2011	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	17856000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1379000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	391000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-25000	USD
CY2012Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12100000	USD
CY2012	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	-789000	USD
CY2011	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	-765000	USD
CY2010	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	39000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-7879000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	6113000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-11645000	USD
CY2010	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	153000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	319000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	326000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	271000	shares
CY2012	us-gaap	Insurance Recoveries InsuranceRecoveries	15200000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4300000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4300000	USD
CY2011Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12100000	USD
CY2012	us-gaap	Interest Expense Debt InterestExpenseDebt	124524000	USD
CY2010	us-gaap	Interest Expense Debt InterestExpenseDebt	91151000	USD
CY2011	us-gaap	Interest Expense Debt InterestExpenseDebt	99668000	USD
CY2011	us-gaap	Interest Income Operating InterestIncomeOperating	7000000	USD
CY2010	us-gaap	Interest Income Operating InterestIncomeOperating	4419000	USD
CY2012	us-gaap	Interest Income Operating InterestIncomeOperating	10009000	USD
CY2012	us-gaap	Interest Paid InterestPaid	118931000	USD
CY2010	us-gaap	Interest Paid InterestPaid	87888000	USD
CY2011	us-gaap	Interest Paid InterestPaid	99816000	USD
CY2012Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	10548000	USD
CY2011Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	10737000	USD
CY2012Q4	us-gaap	Inventory Gross InventoryGross	1569000	USD
CY2011Q4	us-gaap	Inventory Gross InventoryGross	2172000	USD
CY2012Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	8420000	USD
CY2011Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	8557000	USD
CY2012Q4	us-gaap	Land Land	1019581000	USD
CY2011Q4	us-gaap	Land Land	1018521000	USD
CY2011Q4	us-gaap	Land Improvements LandImprovements	2591225000	USD
CY2012Q4	us-gaap	Land Improvements LandImprovements	2624218000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	900000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1000000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	500000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	2496821000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	2473924000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3496101000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3398226000	USD
CY2011Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2011Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	72953000	USD
CY2012Q3	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	2400000	USD
CY2010	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	1581000	USD
CY2010	us-gaap	Minority Interest In Net Income Loss Operating Partnerships MinorityInterestInNetIncomeLossOperatingPartnerships	5903000	USD
CY2011	us-gaap	Minority Interest In Net Income Loss Operating Partnerships MinorityInterestInNetIncomeLossOperatingPartnerships	3105000	USD
CY2012	us-gaap	Minority Interest In Net Income Loss Operating Partnerships MinorityInterestInNetIncomeLossOperatingPartnerships	5067000	USD
CY2012Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2012Q3	us-gaap	Line Of Credit Facility Commitment Fee Amount LineOfCreditFacilityCommitmentFeeAmount	1300000	USD
CY2012	us-gaap	Line Of Credit Facility Initiation Date1 LineOfCreditFacilityInitiationDate1	2012-07-20
CY2012	us-gaap	Line Of Credit Facility Interest Rate Description LineOfCreditFacilityInterestRateDescription	the Company amended its LOC to (i) decrease the per annum interest rate to LIBOR plus a maximum of 1.40% to 2.00%, bearing a facility rate of 0.25% to 0.40%, (ii) extend the maturity of the LOC to September 15, 2016, (iii) lengthen the extension option to one year and (iv) effect other ministerial changes.
CY2012Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	380000000	USD
CY2011Q4	us-gaap	Loans Receivable Net LoansReceivableNet	43400000	USD
CY2012Q4	us-gaap	Loans Receivable Net LoansReceivableNet	32700000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	2269866000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	105052000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	302801000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	238626000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	591949000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	161160000	USD
CY2012Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	65054000	USD
CY2011Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.091
CY2012Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.082
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-196845000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	584008000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-183214000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-86565000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-701848000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-98933000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	163309000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	236459000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	175641000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	26346000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	44257000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	59845000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	18960000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	6827000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-160000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	-2852000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	16009000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	24274000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	12431000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	2064000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22775000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	54778000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	38354000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	59845000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	26346000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	44257000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	29000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	548410000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	18738000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	1431339000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	2796000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	6774000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	440000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	4800000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	-76000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	2643000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	376000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	-164000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	114000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2010	us-gaap	Notes Assumed1 NotesAssumed1	-2556000	USD
CY2012	us-gaap	Notes Assumed1 NotesAssumed1	0	USD
CY2011	us-gaap	Notes Assumed1 NotesAssumed1	0	USD
CY2010	us-gaap	Notes Issued1 NotesIssued1	3674000	USD
CY2011	us-gaap	Notes Issued1 NotesIssued1	830000	USD
CY2012	us-gaap	Notes Issued1 NotesIssued1	0	USD
CY2012Q4	us-gaap	Notes Receivable Net NotesReceivableNet	53172000	USD
CY2011Q4	us-gaap	Notes Receivable Net NotesReceivableNet	64239000	USD
CY2012	us-gaap	Notes Reduction NotesReduction	-5313000	USD
CY2011	us-gaap	Notes Reduction NotesReduction	-2685000	USD
CY2010	us-gaap	Notes Reduction NotesReduction	-566000	USD
CY2011	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	291870000	USD
CY2012	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	338971000	USD
CY2010	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	268201000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	177858000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	213628000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	172032000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	24064000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3353000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1935000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1928000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1921000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1915000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	13012000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	179812	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	40100	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	16639	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	17110	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	18532	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	39327	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	48104	USD
CY2010	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	1900000	USD
CY2012	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	3300000	USD
CY2011	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	2500000	USD
CY2012Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	88000000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	40569000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	45321000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-43000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-2547000	USD
CY2012	us-gaap	Other Income OtherIncome	6793000	USD
CY2010	us-gaap	Other Income OtherIncome	5740000	USD
CY2011	us-gaap	Other Income OtherIncome	6452000	USD
CY2010	us-gaap	Other Payments To Acquire Businesses OtherPaymentsToAcquireBusinesses	100000	USD
CY2011	us-gaap	Owned Property Management Costs OwnedPropertyManagementCosts	35076000	USD
CY2010	us-gaap	Owned Property Management Costs OwnedPropertyManagementCosts	32639000	USD
CY2012	us-gaap	Owned Property Management Costs OwnedPropertyManagementCosts	38460000	USD
CY2010	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	48629000	USD
CY2012	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	75260000	USD
CY2011	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	62032000	USD
CY2011	us-gaap	Payments For Proceeds From Delayed Tax Exempt Exchange PaymentsForProceedsFromDelayedTaxExemptExchange	0	USD
CY2010	us-gaap	Payments For Proceeds From Delayed Tax Exempt Exchange PaymentsForProceedsFromDelayedTaxExemptExchange	-786000	USD
CY2012	us-gaap	Payments For Proceeds From Delayed Tax Exempt Exchange PaymentsForProceedsFromDelayedTaxExemptExchange	0	USD
CY2011	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	883000	USD
CY2010	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-1176000	USD
CY2012	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-5344000	USD
CY2011	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-52266000	USD
CY2012	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	0	USD
CY2010	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	52266000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2054000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1682000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1287000	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	-63856000	USD
CY2010	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2010	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1751000	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	15765000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3062000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	-36840000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	-49483000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	-89489000	USD
CY2011	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	-6313000	USD
CY2012	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	-6696000	USD
CY2010	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	-5620000	USD
CY2010	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	-14613000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	-13823000	USD
CY2012	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	-1261000	USD
CY2010	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2011	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2010	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2011	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	40362000	USD
CY2012	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2010	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	0	USD
CY2012	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	24213000	USD
CY2011	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	651089000	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2010	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1581000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2011Q4	us-gaap	Pledged Assets Not Separately Reported Real Estate PledgedAssetsNotSeparatelyReportedRealEstate	2578000000	USD
CY2012Q4	us-gaap	Pledged Assets Not Separately Reported Real Estate PledgedAssetsNotSeparatelyReportedRealEstate	2494000000	USD
CY2012Q4	us-gaap	Preferred Stock Dividend Rate Per Dollar Amount PreferredStockDividendRatePerDollarAmount	0.0948460
CY2012Q3	us-gaap	Preferred Stock Dividend Rate Per Dollar Amount PreferredStockDividendRatePerDollarAmount	0.3849625
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	9945542	shares
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2012	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2011</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2010</font><font style="font-family:inherit;font-size:10pt;"> amounts have been reclassified to conform to the </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2012</font><font style="font-family:inherit;font-size:10pt;"> presentation. This reclassification had no material effect on the consolidated balance sheets or statements of income and comprehensive income of the Company.</font></div></div>
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	344049000	USD
CY2011Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	344000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	200000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	159500000	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	76615000	USD
CY2011Q3	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	200000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	4932000	USD
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2182000	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	5484000	USD
CY2010	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	200000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2011	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	50000000	USD
CY2012	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2010	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2010	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	170000	USD
CY2010	us-gaap	Proceeds From Previous Acquisition ProceedsFromPreviousAcquisition	1100000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	7600000	USD
CY2011	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	252000	USD
CY2012	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	7564000	USD
CY2010	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	0	USD
CY2011	us-gaap	Profit Loss ProfitLoss	42504000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	74458000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	60397000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3569000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3243000	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2714000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	-963657000	USD
CY2011Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	813926000	USD
CY2009Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	629768000	USD
CY2010Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	700665000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	-2069866000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	3151936000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	1019581000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfLandAndBuildingsAndImprovements	4171517000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	2521180000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	1014140000	USD
CY2012Q4	us-gaap	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	2800000000	USD
CY2011Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	4080149000	USD
CY2010Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2584987000	USD
CY2012Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	4171517000	USD
CY2009Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2538215000	USD
CY2012	us-gaap	Real Estate Improvements RealEstateImprovements	75260000	USD
CY2010	us-gaap	Real Estate Improvements RealEstateImprovements	48629000	USD
CY2011	us-gaap	Real Estate Improvements RealEstateImprovements	62032000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	963657000	USD
CY2011Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	813926000	USD
CY2012Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	4171517000	USD
CY2011Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	4080149000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	3207860000	USD
CY2011Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	3266223000	USD
CY2011	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	1431339000	USD
CY2010	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	2796000	USD
CY2012	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	47623000	USD
CY2010	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	32110000	USD
CY2011	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	37619000	USD
CY2011	us-gaap	Recognition Of Deferred Revenue RecognitionOfDeferredRevenue	5920000	USD
CY2012	us-gaap	Recognition Of Deferred Revenue RecognitionOfDeferredRevenue	6739000	USD
CY2010	us-gaap	Recognition Of Deferred Revenue RecognitionOfDeferredRevenue	4640000	USD
CY2012Q4	us-gaap	Related Party Transaction Terms And Manner Of Settlement RelatedPartyTransactionTermsAndMannerOfSettlement	However, in consideration for the Company allowing Mr. Heneghan to perform certain services for Equity International during this period, the Company and Equity International agreed that Equity International would reimburse the Company for a portion of Mr. Heneghan’s compensation in the amount of $0.3 million.
CY2012	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2010	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2011	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	50000000	USD
CY2012	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	167552000	USD
CY2011	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	75658000	USD
CY2010	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	211656000	USD
CY2011	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	52500000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	4200000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	4900000	USD
CY2010	us-gaap	Revenues Revenues	517299000	USD
CY2012	us-gaap	Revenues Revenues	709877000	USD
CY2011	us-gaap	Revenues Revenues	589199000	USD
CY2011Q2	us-gaap	Revenues Revenues	127690000	USD
CY2011Q4	us-gaap	Revenues Revenues	162321000	USD
CY2011Q3	us-gaap	Revenues Revenues	164045000	USD
CY2011Q1	us-gaap	Revenues Revenues	135143000	USD
CY2012Q4	us-gaap	Revenues Revenues	171931000	USD
CY2012Q3	us-gaap	Revenues Revenues	181828000	USD
CY2012Q2	us-gaap	Revenues Revenues	174827000	USD
CY2012Q1	us-gaap	Revenues Revenues	181291000	USD
CY2010	us-gaap	Sales Of Real Estate SalesOfRealEstate	6120000	USD
CY2012	us-gaap	Sales Of Real Estate SalesOfRealEstate	8566000	USD
CY2011	us-gaap	Sales Of Real Estate SalesOfRealEstate	6088000	USD
CY2010	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	4408000	USD
CY2012	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	3114000	USD
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	3464000	USD
CY2011Q4	us-gaap	Secured Debt SecuredDebt	2084683000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	2069866000	USD
CY2011	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	575747000	USD
CY2012	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	693075000	USD
CY2010	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	507140000	USD
CY2012	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	10846000	USD
CY2010	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	12606000	USD
CY2011	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	11219000	USD
CY2012	us-gaap	Selling Expense SellingExpense	1411000	USD
CY2011	us-gaap	Selling Expense SellingExpense	1589000	USD
CY2010	us-gaap	Selling Expense SellingExpense	2078000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	5436000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	5762000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	5797000	USD
CY2011Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	One-third of the shares of restricted common stock covered by these awards vests on each of December 31, 2011, December 31, 2012, and December 31, 2013.
CY2010Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	One-third of the shares of restricted common stock covered by these awards vests on each of November 11, 2010, May 11, 2011, and May 11, 2012.
CY2011Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	One-third of the shares of restricted common stock covered by these awards vests on each of November 11, 2011, May 11, 2012, and May 11, 2013.
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	These Restricted Stock Grants vested December 31, 2011.
CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	These Restricted Stock Grants will vest on December 31, 2013.
CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	One-third of the shares of restricted common stock covered by these awards vests on each of December 31, 2013, December 31, 2014, and December 31, 2015.
CY2012Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights	One-third of the shares of restricted common stock covered by these awards vests on each of November 8, 2012, May 8, 2013, and May 8, 2014.
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate	0.50
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	552800	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	43.56
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5700000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	800000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1700000	USD
CY2012Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	18333	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	2900	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	841851	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	805184	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	632800	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	552800	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	39.94
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	44.14
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	40.32
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	43.56
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	32.77
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	48.20
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	26.28
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	17.50
CY2012Q2	us-gaap	Share Price SharePrice	68.97
CY2010Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	12600000	USD
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	14300000	USD
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	13100000	USD
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y1M
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	913000	USD
CY2012	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1076000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	344049000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	4571000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1106000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3856000	USD
CY2011	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	4150	shares
CY2012	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	41005	shares
CY2010	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	37332	shares
CY2009	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y
CY2011	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	6037500	shares
CY2011	us-gaap	Stock Issued During Period Shares Conversion Of Units StockIssuedDuringPeriodSharesConversionOfUnits	328353	shares
CY2010	us-gaap	Stock Issued During Period Shares Conversion Of Units StockIssuedDuringPeriodSharesConversionOfUnits	482620	shares
CY2012	us-gaap	Stock Issued During Period Shares Conversion Of Units StockIssuedDuringPeriodSharesConversionOfUnits	374907	shares
CY2012	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	15077	shares
CY2011	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	14588	shares
CY2010	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	18955	shares
CY2011Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	6037500	shares
CY2010	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2011	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	6037500	shares
CY2012	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2011	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	-11333	shares
CY2012	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	-18333	shares
CY2012	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	107332	shares
CY2010	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	121665	shares
CY2011	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	119665	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	172384	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	33767	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	80000	shares
CY2011	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	224283000	USD
CY2011	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	0	USD
CY2010	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2011	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2012	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2010	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1076000	USD
CY2010	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2054000	USD
CY2011	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1682000	USD
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1287000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	859248000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	726327000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	799280000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	924302000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	260158000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	254427000	USD
CY2012	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	-5573000	USD
CY2012	us-gaap	Tax Basis Of Investments Additional Information TaxBasisOfInvestmentsAdditionalInformation	For example, to qualify as a REIT, at least 95% of the Company’s gross income must come from sources that are itemized in the REIT tax laws.
CY2012Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Noncontrolling Interest TemporaryEquityCarryingAmountAttributableToNoncontrollingInterest	0	USD
CY2011Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Noncontrolling Interest TemporaryEquityCarryingAmountAttributableToNoncontrollingInterest	200000000	USD
CY2011Q1	us-gaap	Temporary Equity Liquidation Preference Per Share TemporaryEquityLiquidationPreferencePerShare	25.00
CY2012Q4	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.01
CY2011Q1	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.01
CY2011Q1	us-gaap	Temporary Equity Redemption Price Per Share TemporaryEquityRedemptionPricePerShare	25.00
CY2012Q4	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	0	shares
CY2011Q4	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	8000000	shares
CY2012Q4	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	0	shares
CY2011Q4	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	8000000	shares
CY2011Q1	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	8000000	shares
CY2012Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	0	shares
CY2011Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	8000000	shares
CY2012	us-gaap	Transfer Mortgage Payable TransferMortgagePayable	0	USD
CY2011	us-gaap	Transfer Mortgage Payable TransferMortgagePayable	0	USD
CY2010	us-gaap	Transfer Mortgage Payable TransferMortgagePayable	-3628000	USD
CY2010	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	-3531000	USD
CY2011	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2012	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	-2968000	USD
CY2012Q4	us-gaap	Unsecured Debt UnsecuredDebt	200000000	USD
CY2011Q4	us-gaap	Unsecured Debt UnsecuredDebt	200000000	USD
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. All property, site counts and acreage amounts are unaudited.</font></div></div>
CY2010Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	6580000	USD
CY2012Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	6987000	USD
CY2009Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5795000	USD
CY2011Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	7700000	USD
CY2010	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	3063000	USD
CY2012	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	4860000	USD
CY2011	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	4156000	USD
CY2011	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	-3036000	USD
CY2010	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	-2278000	USD
CY2012	els	Community Base Rental Income CommunityBaseRentalIncome	414170000	USD
CY2010	els	Community Base Rental Income CommunityBaseRentalIncome	259351000	USD
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35518000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45431000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	40330000	shares
CY2011Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45296000	shares
CY2011Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35609000	shares
CY2011Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37262000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	43602000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45369000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45447000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45390000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45472000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35591000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41174000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30517000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38346000	shares
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30996000	shares
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	40263000	shares
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32629000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41131000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41190000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41088000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41285000	shares
CY2012	els	Accrued Long Term Incentive Plan Compensation AccruedLongTermIncentivePlanCompensation	782000	USD
CY2011	els	Accrued Long Term Incentive Plan Compensation AccruedLongTermIncentivePlanCompensation	1813000	USD
CY2010	els	Accrued Long Term Incentive Plan Compensation AccruedLongTermIncentivePlanCompensation	725000	USD
CY2012	els	Adjustment Depreciation AdjustmentDepreciation	1200000	USD
CY2010	els	Adjustment Depreciation AdjustmentDepreciation	1200000	USD
CY2011	els	Adjustment Depreciation AdjustmentDepreciation	1200000	USD
CY2011	els	Adjustment For Common Unitholders In Operating Partnership AdjustmentForCommonUnitholdersInOperatingPartnership	0	USD
CY2010	els	Adjustment For Common Unitholders In Operating Partnership AdjustmentForCommonUnitholdersInOperatingPartnership	0	USD
CY2012	els	Adjustment For Common Unitholders In Operating Partnership AdjustmentForCommonUnitholdersInOperatingPartnership	0	USD
CY2012	els	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs Preferred Stock Offering Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsPreferredStockOfferingCosts	757000	USD
CY2012Q3	els	At Market Offering Value AtMarketOfferingValue	125000000	USD
CY2012Q4	els	Business Acquisition Purchase Price Allocation Advances By Customers BusinessAcquisitionPurchasePriceAllocationAdvancesByCustomers	440000	USD
CY2011Q4	els	Business Acquisition Purchase Price Allocation Advances By Customers BusinessAcquisitionPurchasePriceAllocationAdvancesByCustomers	5000000	USD
CY2008Q3	els	Business Acquisition Purchase Price Allocation Deposits Assets BusinessAcquisitionPurchasePriceAllocationDepositsAssets	4800000	USD
CY2011Q4	els	Business Combinations Acquired Receivables Current Value BusinessCombinationsAcquiredReceivablesCurrentValue	25700000	USD
CY2010	els	Capital Gains Dividends Per Share CapitalGainsDividendsPerShare	0.05
CY2012	els	Capital Gains Dividends Per Share CapitalGainsDividendsPerShare	0.137
CY2011Q1	els	Capital Gains Dividends Per Share CapitalGainsDividendsPerShare	0.000
CY2012	els	Commission Expense Recognized Related To Right To Use Contract Sales CommissionExpenseRecognizedRelatedToRightToUseContractSales	2310000	USD
CY2010	els	Commission Expense Recognized Related To Right To Use Contract Sales CommissionExpenseRecognizedRelatedToRightToUseContractSales	1432000	USD
CY2011	els	Commission Expense Recognized Related To Right To Use Contract Sales CommissionExpenseRecognizedRelatedToRightToUseContractSales	1946000	USD
CY2010	els	Commitments To Related Parties Expiration Date CommitmentsToRelatedPartiesExpirationDate	2010-12-31
CY2012	els	Common Stock Dividends Per Share Tax Treatment CommonStockDividendsPerShareTaxTreatment	2.125
CY2010	els	Common Stock Dividends Per Share Tax Treatment CommonStockDividendsPerShareTaxTreatment	1.20
CY2011	els	Common Stock Issued To Acquire Businesses CommonStockIssuedToAcquireBusinesses	110495000	USD
CY2010	els	Common Stock Issued To Acquire Businesses CommonStockIssuedToAcquireBusinesses	0	USD
CY2012	els	Common Stock Issued To Acquire Businesses CommonStockIssuedToAcquireBusinesses	0	USD
CY2011Q1	els	Common Stock Dividends Per Share Tax Treatment CommonStockDividendsPerShareTaxTreatment	1.125
CY2011	els	Community Base Rental Income CommunityBaseRentalIncome	318851000	USD
CY2012	els	Deferred Compensation Arrangement With Individual Contributions By Plan Participants Percentage Of Salary Maximum DeferredCompensationArrangementWithIndividualContributionsByPlanParticipantsPercentageOfSalaryMaximum	0.60
CY2012	els	Deferred Compensation Arrangement With Individual Percentage Vested DeferredCompensationArrangementWithIndividualPercentageVested	1.00
CY2011Q4	els	Deferred Revenue Right To Use Annual Payments DeferredRevenueRightToUseAnnualPayments	11877000	USD
CY2012Q4	els	Deferred Revenue Right To Use Annual Payments DeferredRevenueRightToUseAnnualPayments	11088000	USD
CY2012Q3	els	Deferredcompensationarrangementwithindividualfairvalueofsharescancelled Deferredcompensationarrangementwithindividualfairvalueofsharescancelled	1300000	USD
CY2012Q3	els	Depositary Share Liquidation Preference Per Share DepositaryShareLiquidationPreferencePerShare	25.00
CY2012Q3	els	Depositary Shares Issued DepositarySharesIssued	5445765	shares
CY2012	els	Depreciation Rental Operations DepreciationRentalOperations	6100000	USD
CY2010	els	Depreciation Rental Operations DepreciationRentalOperations	2800000	USD
CY2011	els	Depreciation Rental Operations DepreciationRentalOperations	4300000	USD
CY2010	els	Description Of Employment Agreement DescriptionOfEmploymentAgreement	The Company entered into an employment agreement effective as of January 1, 2008 (the “Employment Agreement”) with Mr. McAdams which provided for an initial term of three years which expired on December 31, 2010.
CY2010	els	Description Of Performance Based Bonus Calculation DescriptionOfPerformanceBasedBonusCalculation	The Employment Agreement provided for a minimum annual base salary of $0.3 million, with the option to receive an annual bonus in an amount up to three times his base salary.
CY2012	els	Distributions To Preferred Unit Holders DistributionsToPreferredUnitHolders	0	USD
CY2010	els	Distributions To Preferred Unit Holders DistributionsToPreferredUnitHolders	-16140000	USD
CY2011	els	Distributions To Preferred Unit Holders DistributionsToPreferredUnitHolders	-2801000	USD
CY2010	els	Effective Lease Rent Payment Period EffectiveLeaseRentPaymentPeriod	P7M
CY2012	els	Employee Stock Purchase Plan Purchase Price Of Shares EmployeeStockPurchasePlanPurchasePriceOfShares	The common stock may be purchased monthly at a price equal to 85% of the lesser of: (a) the closing price for a share of common stock on the last day of the offering period; and (b) the closing price for a share of common stock on the first day of the offering period.
CY2012Q4	els	Employer401 K Matching Contribution To Employee Maximum Employer401KMatchingContributionToEmployeeMaximum	0.04
CY2012	els	Employer Four Zero One K Matching Contribution To Employee EmployerFourZeroOneKMatchingContributionToEmployee	0.50
CY2010	els	Employment Termination Agreement Well Cost Incentive Award EmploymentTerminationAgreementWellCostIncentiveAward	300000	USD
CY2011	els	Equity In Earnings Of Operating Joint Ventures EquityInEarningsOfOperatingJointVentures	100000	USD
CY2011	els	Equity In Income Of Unconsolidated Joint Ventures EquityInIncomeOfUnconsolidatedJointVentures	1948000	USD
CY2012	els	Equity In Income Of Unconsolidated Joint Ventures EquityInIncomeOfUnconsolidatedJointVentures	1899000	USD
CY2010	els	Equity In Income Of Unconsolidated Joint Ventures EquityInIncomeOfUnconsolidatedJointVentures	2027000	USD
CY2011Q4	els	Escrow Fund EscrowFund	200000	USD
CY2010	els	Exchangeofstockamountexchanged1 Exchangeofstockamountexchanged1	0	USD
CY2011	els	Exchangeofstockamountexchanged1 Exchangeofstockamountexchanged1	0	USD
CY2012	els	Exchangeofstockamountexchanged1 Exchangeofstockamountexchanged1	-136144000	USD
CY2010	els	Exchangeofstockamountissued1 Exchangeofstockamountissued1	0	USD
CY2012	els	Exchangeofstockamountissued1 Exchangeofstockamountissued1	136144000	USD
CY2011	els	Exchangeofstockamountissued1 Exchangeofstockamountissued1	0	USD
CY2012Q4	els	Finite Lived Intangible Assets Amortization Expense Year One FiniteLivedIntangibleAssetsAmortizationExpenseYearOne	349000	USD
CY2010	els	Free Lease Rent Period FreeLeaseRentPeriod	P5M
CY2011	els	Gain Loss On Discontinued Real Estate And Other GainLossOnDiscontinuedRealEstateAndOther	0	USD
CY2010	els	Gain Loss On Discontinued Real Estate And Other GainLossOnDiscontinuedRealEstateAndOther	-231000	USD
CY2012	els	Gain Loss On Discontinued Real Estate And Other GainLossOnDiscontinuedRealEstateAndOther	4596000	USD
CY2012	els	Incremental Common Shares Attributable To Redemption Or Exchange Of Noncontrolling Interests IncrementalCommonSharesAttributableToRedemptionOrExchangeOfNoncontrollingInterests	3938000	shares
CY2011	els	Incremental Common Shares Attributable To Redemption Or Exchange Of Noncontrolling Interests IncrementalCommonSharesAttributableToRedemptionOrExchangeOfNoncontrollingInterests	4260000	shares
CY2010	els	Incremental Common Shares Attributable To Redemption Or Exchange Of Noncontrolling Interests IncrementalCommonSharesAttributableToRedemptionOrExchangeOfNoncontrollingInterests	4730000	shares
CY2010	els	Incremental Income Loss Related To Potential Common Shares IncrementalIncomeLossRelatedToPotentialCommonShares	5903000	USD
CY2011	els	Incremental Income Loss Related To Potential Common Shares IncrementalIncomeLossRelatedToPotentialCommonShares	3571000	USD
CY2012	els	Incremental Income Loss Related To Potential Common Shares IncrementalIncomeLossRelatedToPotentialCommonShares	5067000	USD
CY2012Q4	els	Initial Employer401 K Matching Contribution To Employee InitialEmployer401KMatchingContributionToEmployee	1.00
CY2010Q4	els	Initial Term Of Contract InitialTermOfContract	P3Y
CY2011	els	Interest Income InterestIncome	6717000	USD
CY2012	els	Interest Income InterestIncome	9563000	USD
CY2010	els	Interest Income InterestIncome	4045000	USD
CY2008	els	Lease Term LeaseTerm	P12Y
CY2012Q4	els	Loans Receivable Default Rate LoansReceivableDefaultRate	0.23
CY2012Q4	els	Loans Receivable Recovery Rate LoansReceivableRecoveryRate	0.26
CY2012Q4	els	Long Term Debt Maturities Repayments Of Principal In Year Seven And Thereafter LongTermDebtMaturitiesRepaymentsOfPrincipalInYearSevenAndThereafter	845670000	USD
CY2012Q4	els	Minimum Percentage Of Taxable Income Distribution To Shareholders MinimumPercentageOfTaxableIncomeDistributionToShareholders	0.90
CY2011	els	Non Cash Repossession NonCashRepossession	2685000	USD
CY2010	els	Non Cash Repossession NonCashRepossession	566000	USD
CY2012	els	Non Cash Repossession NonCashRepossession	5313000	USD
CY2012	els	Noncash Reclassification Building And Other Depreciable Property NoncashReclassificationBuildingAndOtherDepreciableProperty	4127000	USD
CY2010	els	Noncash Reclassification Building And Other Depreciable Property NoncashReclassificationBuildingAndOtherDepreciableProperty	3915000	USD
CY2011	els	Noncash Reclassification Building And Other Depreciable Property NoncashReclassificationBuildingAndOtherDepreciableProperty	2371000	USD
CY2012	els	Noncash Reclassification Escrow Deposits And Other Assets NoncashReclassificationEscrowDepositsAndOtherAssets	-4127000	USD
CY2011	els	Noncash Reclassification Escrow Deposits And Other Assets NoncashReclassificationEscrowDepositsAndOtherAssets	-2371000	USD
CY2010	els	Noncash Reclassification Escrow Deposits And Other Assets NoncashReclassificationEscrowDepositsAndOtherAssets	-3915000	USD
CY2011Q1	els	Nondividend Distribution NondividendDistribution	0.000
CY2010	els	Nondividend Distribution NondividendDistribution	0.00
CY2012	els	Nondividend Distribution NondividendDistribution	0.369
CY2012Q4	els	Notes Receivable Federal Income Tax Basis NotesReceivableFederalIncomeTaxBasis	58700000	USD
CY2011	els	Number Of Acquired Acres Of Land NumberOfAcquiredAcresOfLand	6500
CY2012Q4	els	Number Of Acquired Sites NumberOfAcquiredSites	1765
CY2011Q4	els	Number Of Acquired Sites NumberOfAcquiredSites	30129
CY2011	els	Number Of Closed Acquisition Properties NumberOfClosedAcquisitionProperties	75
CY2012Q4	els	Number Of Joint Venture Sites NumberOfJointVentureSites	3075
CY2012	els	Number Of Leased Properties NumberOfLeasedProperties	18	integer
CY2011	els	Number Of Mortgages Paid Off NumberOfMortgagesPaidOff	9	integer
CY2011Q4	els	Number Of Pledged Properties NumberOfPledgedProperties	174	integer
CY2012Q4	els	Number Of Pledged Properties NumberOfPledgedProperties	171	integer
CY2008Q3	els	Number Of Properties NumberOfProperties	82
CY2011Q2	els	Number Of Sites Per Purchase Agreements NumberOfSitesPerPurchaseAgreements	31167
CY2011Q2	els	Number Of States In Which Acquisitions Properties Operate NumberOfStatesInWhichAcquisitionsPropertiesOperate	16
CY2011	els	Operating Income Loss Before Depreciation And Other OperatingIncomeLossBeforeDepreciationAndOther	283877000	USD
CY2012	els	Operating Income Loss Before Depreciation And Other OperatingIncomeLossBeforeDepreciationAndOther	354104000	USD
CY2010	els	Operating Income Loss Before Depreciation And Other OperatingIncomeLossBeforeDepreciationAndOther	238939000	USD
CY2012	els	Operating Lease Expiration Period OperatingLeaseExpirationPeriod	P95Y
CY2012Q4	els	Operating Leases Future Minimum Payments Due Remainder Of Period OperatingLeasesFutureMinimumPaymentsDueRemainderOfPeriod	1400000	USD
CY2012Q4	els	Operating Partnership Units Outstanding OperatingPartnershipUnitsOutstanding	3728160	shares
CY2011Q4	els	Operating Partnership Units Outstanding OperatingPartnershipUnitsOutstanding	4103067	shares
CY2010Q4	els	Operating Partnership Units Outstanding OperatingPartnershipUnitsOutstanding	4914040	shares
CY2012	els	Ordinary Income Dividends Per Share OrdinaryIncomeDividendsPerShare	1.619
CY2011Q1	els	Ordinary Income Dividends Per Share OrdinaryIncomeDividendsPerShare	1.125
CY2010	els	Ordinary Income Dividends Per Share OrdinaryIncomeDividendsPerShare	1.15
CY2011	els	Other Revenues OtherRevenues	6735000	USD
CY2012	els	Other Revenues OtherRevenues	7239000	USD
CY2010	els	Other Revenues OtherRevenues	6114000	USD
CY2012	els	Payments For Employee Long Term Incentive Plan PaymentsForEmployeeLongTermIncentivePlan	2300000	USD
CY2012Q3	els	Peferred Stock Shares Exchanged PeferredStockSharesExchanged	5445765	shares
CY2012Q4	els	Percentage Of Ownership Interests PercentageOfOwnershipInterests	0.918
CY2011Q4	els	Percentage Of Ownership Interests PercentageOfOwnershipInterests	0.909
CY2012Q4	els	Preferred Stock That Can Be Issued By Board Of Directors Without Stockholders Approval PreferredStockThatCanBeIssuedByBoardOfDirectorsWithoutStockholdersApproval	10000000	shares
CY2010	els	Real Estate Cost Of Real Estate Sold And Other RealEstateCostOfRealEstateSoldAndOther	-4653000	USD
CY2012	els	Real Estate Cost Of Real Estate Sold And Other RealEstateCostOfRealEstateSoldAndOther	-2630000	USD
CY2012	els	Real Estate Depreciation Expense And Rental Homes RealEstateDepreciationExpenseAndRentalHomes	104917000	USD
CY2011	els	Real Estate And Accumulated Depreciation Accumulated Depreciation Dispositions And Other RealEstateAndAccumulatedDepreciationAccumulatedDepreciationDispositionsAndOther	525000	USD
CY2010	els	Real Estate And Accumulated Depreciation Accumulated Depreciation Dispositions And Other RealEstateAndAccumulatedDepreciationAccumulatedDepreciationDispositionsAndOther	-55000	USD
CY2012	els	Real Estate And Accumulated Depreciation Accumulated Depreciation Dispositions And Other RealEstateAndAccumulatedDepreciationAccumulatedDepreciationDispositionsAndOther	-308000	USD
CY2011	els	Real Estate Cost Of Real Estate Sold And Other RealEstateCostOfRealEstateSoldAndOther	1791000	USD
CY2010	els	Real Estate Depreciation Expense And Rental Homes RealEstateDepreciationExpenseAndRentalHomes	70952000	USD
CY2011	els	Real Estate Depreciation Expense And Rental Homes RealEstateDepreciationExpenseAndRentalHomes	84257000	USD
CY2012	els	Rent Control Initiatives Expenses And Other RentControlInitiativesExpensesAndOther	1456000	USD
CY2010	els	Rent Control Initiatives Expenses And Other RentControlInitiativesExpensesAndOther	2200000	USD
CY2011	els	Rent Control Initiatives Expenses And Other RentControlInitiativesExpensesAndOther	2043000	USD
CY2010	els	Rental Home Income RentalHomeIncome	4952000	USD
CY2012	els	Rental Home Income RentalHomeIncome	14065000	USD
CY2011	els	Rental Home Income RentalHomeIncome	7970000	USD
CY2012	els	Rental Home Operating And Maintenance Expenses RentalHomeOperatingAndMaintenanceExpenses	7359000	USD
CY2010	els	Rental Home Operating And Maintenance Expenses RentalHomeOperatingAndMaintenanceExpenses	3111000	USD
CY2011	els	Rental Home Operating And Maintenance Expenses RentalHomeOperatingAndMaintenanceExpenses	4850000	USD
CY2012	els	Resort Base Rental Income ResortBaseRentalIncome	134327000	USD
CY2011	els	Resort Base Rental Income ResortBaseRentalIncome	130489000	USD
CY2010	els	Resort Base Rental Income ResortBaseRentalIncome	129481000	USD
CY2012	els	Right To Use Annual Payments RightToUseAnnualPayments	47662000	USD
CY2010	els	Right To Use Annual Payments RightToUseAnnualPayments	49831000	USD
CY2011	els	Right To Use Annual Payments RightToUseAnnualPayments	49122000	USD
CY2011	els	Right To Use Contracts Current Period Gross RightToUseContractsCurrentPeriodGross	17856000	USD
CY2012	els	Right To Use Contracts Current Period Gross RightToUseContractsCurrentPeriodGross	13433000	USD
CY2010	els	Right To Use Contracts Current Period Gross RightToUseContractsCurrentPeriodGross	19496000	USD
CY2012	els	Right To Use Contracts Deferred Net Of Prior Period Amortization RightToUseContractsDeferredNetOfPriorPeriodAmortization	-6694000	USD
CY2010	els	Right To Use Contracts Deferred Net Of Prior Period Amortization RightToUseContractsDeferredNetOfPriorPeriodAmortization	-14856000	USD
CY2011	els	Right To Use Contracts Deferred Net Of Prior Period Amortization RightToUseContractsDeferredNetOfPriorPeriodAmortization	-11936000	USD
CY2011	els	Sales And Marketing Deferred Commissions Net SalesAndMarketingDeferredCommissionsNet	-4789000	USD
CY2012	els	Sales And Marketing Deferred Commissions Net SalesAndMarketingDeferredCommissionsNet	-3155000	USD
CY2010	els	Sales And Marketing Deferred Commissions Net SalesAndMarketingDeferredCommissionsNet	-5525000	USD
CY2010	els	Series B Subordinated Nonvoting Cumulative Redeemable Preferred Stock Issued SeriesBSubordinatedNonvotingCumulativeRedeemablePreferredStockIssued	0	USD
CY2011	els	Series B Subordinated Nonvoting Cumulative Redeemable Preferred Stock Issued SeriesBSubordinatedNonvotingCumulativeRedeemablePreferredStockIssued	113788000	USD
CY2012	els	Series B Subordinated Nonvoting Cumulative Redeemable Preferred Stock Issued SeriesBSubordinatedNonvotingCumulativeRedeemablePreferredStockIssued	0	USD
CY2012Q4	els	Share Based Compensation Arrangement By Share Based Payment Award Minimum Vesting Period For Restricted Stock And Restricted Stock Units ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumVestingPeriodForRestrictedStockAndRestrictedStockUnits	P2Y
CY2012	els	Share Based Compensation Arrangement By Share Based Payment Award Repurchased Shares For Taxes ShareBasedCompensationArrangementByShareBasedPaymentAwardRepurchasedSharesForTaxes	66.61
CY2011Q1	els	Stock Conversion Price Per Share StockConversionPricePerShare	24.75
CY2012	els	Stock Exchange StockExchange	0	USD
CY2011	els	Stock Issued During Period Shares Dividend Reinvestment And Employee Stock Purchase Plan StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan	15152	shares
CY2012	els	Stock Issued During Period Shares Dividend Reinvestment And Employee Stock Purchase Plan StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan	15554	shares
CY2010	els	Stock Issued During Period Shares Dividend Reinvestment And Employee Stock Purchase Plan StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan	20841	shares
CY2011	els	Stock Issued Or Vested During Period Shares Stock Awards StockIssuedOrVestedDuringPeriodSharesStockAwards	108332	shares
CY2010	els	Stock Issued Or Vested During Period Shares Stock Awards StockIssuedOrVestedDuringPeriodSharesStockAwards	121665	shares
CY2012	els	Stock Issued Or Vested During Period Shares Stock Awards StockIssuedOrVestedDuringPeriodSharesStockAwards	88999	shares
CY2012	els	Temporary Equity Conversion To Permanent Equity TemporaryEquityConversionToPermanentEquity	200000000	USD
CY2010	els	Transfer Of Other Assets And Liabilities TransferOfOtherAssetsAndLiabilities	97000	USD
CY2012	els	Transfer Of Other Assets And Liabilities TransferOfOtherAssetsAndLiabilities	0	USD
CY2011	els	Transfer Of Other Assets And Liabilities TransferOfOtherAssetsAndLiabilities	-252000	USD
CY2012	els	Utility And Other Income UtilityAndOtherIncome	64432000	USD
CY2011	els	Utility And Other Income UtilityAndOtherIncome	53843000	USD
CY2010	els	Utility And Other Income UtilityAndOtherIncome	48357000	USD
CY2011Q4	els	Weighted Average Interest Rate WeightedAverageInterestRate	0.0704
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000895417
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	41673959	shares
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	2643889000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	EQUITY LIFESTYLE PROPERTIES INC
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012	dei	Trading Symbol TradingSymbol	ELS

Files In Submission

Name	View Source	Status
0000895417-13-000009-index-headers.html	Edgar Link	pending
0000895417-13-000009-index.html	Edgar Link	pending
0000895417-13-000009.txt	Edgar Link	pending
0000895417-13-000009-xbrl.zip	Edgar Link	pending
els-20121231.xml	Edgar Link	completed
els-20121231.xsd	Edgar Link	pending
els-20121231_cal.xml	Edgar Link	unprocessable
els-20121231_def.xml	Edgar Link	unprocessable
els-20121231_lab.xml	Edgar Link	unprocessable
els-20121231_pre.xml	Edgar Link	unprocessable
els1231201210-k.htm	Edgar Link	pending
exhibit12-computationofrat.htm	Edgar Link	pending
exhibit21-subsidiariesofre.htm	Edgar Link	pending
exhibit23-consentofauditors.htm	Edgar Link	pending
exhibit241-poa.htm	Edgar Link	pending
exhibit242-poa.htm	Edgar Link	pending
exhibit243-poa.htm	Edgar Link	pending
exhibit244-poa.htm	Edgar Link	pending
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exhibit246-poa.htm	Edgar Link	pending
exhibit247-poa.htm	Edgar Link	pending
exhibit248-poa.htm	Edgar Link	pending
exhibit311-certificationof.htm	Edgar Link	pending
exhibit312-certiciationofc.htm	Edgar Link	pending
exhibit321-certificationof.htm	Edgar Link	pending
exhibit322-certificationof.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
item1industrychartrevised.jpg	Edgar Link	pending
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$ELS
EQUITY LIFESTYLE PROPERTIES INC Stock $els

2012 Q4 Form 10-K Financial Statement

#000089541713000009 Filed on February 28, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ELS EQUITY LIFESTYLE PROPERTIES INC Stock $els

2012 Q4 Form 10-K Financial Statement

#000089541713000009 Filed on February 28, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ELS
EQUITY LIFESTYLE PROPERTIES INC Stock $els