$AIV
APARTMENT INVESTMENT & MANAGEMENT CO Stock $aiv

$aiv Overview Financials Valuation SEC Filings Company Website

2013 Form 10-K Financial Statement

#000092286414000008 Filed on February 21, 2014

Income Statement

Concept	2013	2012 Q4	2012 Q3
Revenue	$974.1M	$247.7M	$243.0M
YoY Change	1.62%	-0.3%	-1.96%
Cost Of Revenue	$375.7M	$81.20M	$101.0M
YoY Change	0.37%	-16.37%	2.75%
Gross Profit	$598.4M	$133.3M	$151.9M
YoY Change	2.43%	-11.9%	11.86%
Gross Profit Margin	61.43%	53.81%	62.52%
Selling, General & Admin	$50.00M	$14.70M	$15.10M
YoY Change	-18.83%	-16.48%	0.0%
% of Gross Profit	8.36%	11.03%	9.94%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$291.9M	$72.30M	$79.10M
YoY Change	-10.23%	12.79%	-1.37%
% of Gross Profit	48.78%	54.24%	52.07%
Operating Expenses	$725.0M	$192.3M	$197.1M
YoY Change	-6.99%	-8.33%	-5.66%
Operating Profit	$249.0M	$55.37M	$45.90M
YoY Change	39.1%	43.33%	17.84%
Interest Expense	$237.0M	-$45.30M	$61.20M
YoY Change	3.35%	-37.6%	-10.1%
% of Operating Profit	95.19%	-81.82%	133.32%
Other Income/Expense, Net	$2.723M	$4.600M	$16.00M
YoY Change	-84.42%	-291.67%	384.85%
Pretax Income	$32.64M	$4.700M	$5.883M
YoY Change	-266.4%	-112.91%	-123.38%
Income Tax	-$1.959M	-$500.0K	-$40.00K
% Of Pretax Income	-6.0%	-10.64%	-0.68%
Net Earnings	$207.3M	$97.25M	$38.78M
YoY Change	56.5%	-1234.22%	-2789.39%
Net Earnings / Revenue	21.28%	39.26%	15.96%
Basic Earnings Per Share
Diluted Earnings Per Share	$1.479M	$493.2K	$277.9K
COMMON SHARES
Basic Shares Outstanding	145.3M shares	145.5M shares	145.0M shares
Diluted Shares Outstanding	145.5M shares		145.0M shares

Balance Sheet

Concept	2013	2012 Q4	2012 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$56.00M	$84.00M	$103.0M
YoY Change	-33.33%	-7.69%	35.53%
Cash & Equivalents	$56.00M	$84.41M	$102.5M
Short-Term Investments
Other Short-Term Assets	$146.0M
YoY Change	-7.01%
Inventory	$0.00	$280.0M	$46.00M
Prepaid Expenses
Receivables			$37.00M
Other Receivables			$0.00
Total Short-Term Assets	$202.0M	$364.0M	$186.0M
YoY Change	-61.23%	-39.74%	58.97%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.391B	$5.235B	$5.751B
YoY Change	2.98%	-6.35%	-6.93%
Goodwill		$49.00M
YoY Change		-10.09%
Intangibles
YoY Change
Long-Term Investments	$75.00M	$18.75M	$38.00M
YoY Change	-3.85%		-66.96%
Other Assets	$194.0M	$232.0M	$159.0M
YoY Change	-16.38%	26.09%	-58.38%
Total Long-Term Assets	$5.877B	$6.037B	$6.379B
YoY Change	-0.05%	-3.68%	-7.89%
TOTAL ASSETS
Total Short-Term Assets	$202.0M	$364.0M	$186.0M
Total Long-Term Assets	$5.877B	$6.037B	$6.379B
Total Assets	$6.079B	$6.401B	$6.565B
YoY Change	-5.03%	-6.85%	-6.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$43.00M	$31.00M	$28.00M
YoY Change	38.71%	-6.06%	12.0%
Accrued Expenses	$288.0M	$314.0M	$236.0M
YoY Change	-8.28%	11.35%	-15.41%
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	$331.0M	$345.0M	$264.0M
YoY Change	-4.06%	9.52%	-22.12%
LONG-TERM LIABILITIES
Long-Term Debt	$4.388B	$4.413B	$4.938B
YoY Change	-0.57%	-7.54%	-6.12%
Other Long-Term Liabilities	$108.0M	$409.0M	$180.0M
YoY Change	-73.59%	-26.44%	20.0%
Total Long-Term Liabilities	$4.496B	$4.822B	$5.118B
YoY Change	-6.76%	-9.51%	-5.4%
TOTAL LIABILITIES
Total Short-Term Liabilities	$331.0M	$345.0M	$264.0M
Total Long-Term Liabilities	$4.496B	$4.822B	$5.118B
Total Liabilities	$5.112B	$5.166B	$5.382B
YoY Change	-6.82%	-8.46%	-11.49%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock		$1.456M	$1.456M
YoY Change		20.43%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$967.0M	$915.4M	$875.7M
YoY Change
Total Liabilities & Shareholders Equity	$6.079B	$6.401B	$6.565B
YoY Change	-5.03%	-6.85%	-6.78%

Cashflow Statement

Concept	2013	2012 Q4	2012 Q3
OPERATING ACTIVITIES
Net Income	$207.3M	$97.25M	$38.78M
YoY Change	56.5%	-1234.22%	-2789.39%
Depreciation, Depletion And Amortization	$291.9M	$72.30M	$79.10M
YoY Change	-10.23%	12.79%	-1.37%
Cash From Operating Activities	$325.6M	$74.50M	$90.30M
YoY Change	2.77%	-9.59%	11.21%
INVESTING ACTIVITIES
Capital Expenditures	-$401.6M	-$75.10M	-$82.80M
YoY Change	11.59%	5.63%	-20.08%
Acquisitions
YoY Change
Other Investing Activities	-$20.95M	$150.6M	$148.3M
YoY Change	-251.83%	15.94%	24.73%
Cash From Investing Activities	$65.19M	$75.50M	$65.50M
YoY Change	-41.62%	28.62%	328.1%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$419.5M	-168.0M	-366.3M
YoY Change	-3.61%	33.33%	245.89%
NET CHANGE
Cash From Operating Activities	$325.6M	74.50M	90.30M
Cash From Investing Activities	$65.19M	75.50M	65.50M
Cash From Financing Activities	-$419.5M	-168.0M	-366.3M
Net Change In Cash	-$28.66M	-18.00M	-210.5M
YoY Change	330.81%	-219.21%	2139.36%
FREE CASH FLOW
Cash From Operating Activities	$325.6M	$74.50M	$90.30M
Capital Expenditures	-$401.6M	-$75.10M	-$82.80M
Free Cash Flow	$727.2M	$149.6M	$173.1M
YoY Change	7.46%	-2.54%	-6.33%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2012Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	30747000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	287595000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	313611000	USD
CY2013Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	2798853000	USD
CY2012Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	2863287000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3542000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4602000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3701339000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3712684000	USD
CY2013	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	87771000	USD
CY2011	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	316983000	USD
CY2012	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	121466000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5883000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5223000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5915000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5900000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5900000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5300000	USD
CY2012	us-gaap	Amortization Of Below Market Lease AmortizationOfBelowMarketLease	3800000	USD
CY2013	us-gaap	Amortization Of Below Market Lease AmortizationOfBelowMarketLease	2900000	USD
CY2011	us-gaap	Amortization Of Below Market Lease AmortizationOfBelowMarketLease	4300000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5044000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5696000	USD
CY2013	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4915000	USD
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3000000	shares
CY2013Q4	us-gaap	Assets Assets	6079413000	USD
CY2012Q4	us-gaap	Assets Assets	6401380000	USD
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	289746000	USD
CY2013Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2013Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	58408000	USD
CY2012Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	59145000	USD
CY2013Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	59800000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	56300000	USD
CY2013Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	35900000	USD
CY2012	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	10000000	USD
CY2013	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	8900000	USD
CY2013Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	22000000	USD
CY2012Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	27500000	USD
CY2012Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	33000000	USD
CY2013Q4	us-gaap	Below Market Lease Amortization Income Next Twelve Months BelowMarketLeaseAmortizationIncomeNextTwelveMonths	2270000	USD
CY2013Q4	us-gaap	Below Market Lease Amortization Income Year Five BelowMarketLeaseAmortizationIncomeYearFive	1331000	USD
CY2013Q4	us-gaap	Below Market Lease Amortization Income Year Four BelowMarketLeaseAmortizationIncomeYearFour	1550000	USD
CY2013Q4	us-gaap	Below Market Lease Amortization Income Year Three BelowMarketLeaseAmortizationIncomeYearThree	1757000	USD
CY2013Q4	us-gaap	Below Market Lease Amortization Income Year Two BelowMarketLeaseAmortizationIncomeYearTwo	2016000	USD
CY2012Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	19800000	USD
CY2013Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	16900000	USD
CY2012	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	5800000	USD
CY2011	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	12600000	USD
CY2013	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	3300000	USD
CY2011	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	8700000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	55751000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	84413000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	91066000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	111325000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-6653000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-28662000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-20259000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies	0	USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies	0	USD
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.96
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CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.76
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	505787260	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	505787260	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	145917387	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	145563903	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	145563903	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	145917387	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	1456000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	1459000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	206230000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-61871000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	135774000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2020000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	63020000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	30819000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-63891000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	198794000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	237049000	USD
CY2013Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4388185000	USD
CY2012Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4413083000	USD
CY2013Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	4500000000	USD
CY2012Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	5100000000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	37312000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	36641000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	87359000	USD
CY2012Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	69041000	USD
CY2012Q4	us-gaap	Deferred Revenue DeferredRevenue	127561000	USD
CY2013Q4	us-gaap	Deferred Revenue DeferredRevenue	107775000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	121265000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	118400000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	44828000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	30353000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	66145000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	62651000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	393000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	629000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	12905000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	7724000	USD
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CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	9398000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	9272000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	33321000	USD
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CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3553000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	4531000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	11424000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	16157000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	49000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	25596000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	23139000	USD
CY2013	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	16372000	USD
CY2012	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	41577000	USD
CY2011	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	72099000	USD
CY2013	us-gaap	Depreciation Nonproduction DepreciationNonproduction	291910000	USD
CY2012	us-gaap	Depreciation Nonproduction DepreciationNonproduction	325173000	USD
CY2011	us-gaap	Depreciation Nonproduction DepreciationNonproduction	323233000	USD
CY2011	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	376164000	USD
CY2013	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	375672000	USD
CY2012	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	374347000	USD
CY2012	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	234530000	USD
CY2011	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	108203000	USD
CY2013	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	212459000	USD
CY2011	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	5390000	USD
CY2013	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	11328000	USD
CY2012	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	9833000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	41577000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	16372000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	72099000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	49030000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	29972000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	13346000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Interest Income DisposalGroupIncludingDiscontinuedOperationInterestIncome	1561000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Interest Income DisposalGroupIncludingDiscontinuedOperationInterestIncome	343000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Interest Income DisposalGroupIncludingDiscontinuedOperationInterestIncome	568000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	62781000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	30695000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	111549000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	15101000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	18824000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	22729000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	10093000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	2900000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Net DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet	279653000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	62152000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	140634000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	226623000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	104006000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	140052000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	57583000	USD
CY2012	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	27264000	USD
CY2011	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	49756000	USD
CY2013	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	2804000	USD
CY2013	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.40
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.000
CY2012	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.61
CY2011	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.86
CY2013Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.84
CY2013Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.46
CY2013Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.07
CY2013Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.03
CY2012Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.47
CY2012Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.00
CY2012Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.09
CY2012Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.17
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.104
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.060
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.098
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	500000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	300000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	400000	USD
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	8600000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y8M
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	600000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	500000	USD
CY2013Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	1100000	USD
CY2012Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	6900000	USD
CY2012Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	114658000	USD
CY2011Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	472904000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	93242000	USD
CY2012Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity EquityMethodInvestmentSummarizedFinancialInformationEquity	-18109000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity EquityMethodInvestmentSummarizedFinancialInformationEquity	28383000	USD
CY2011Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity EquityMethodInvestmentSummarizedFinancialInformationEquity	17313000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilities	64859000	USD
CY2011Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilities	455591000	USD
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-145856000	USD
CY2012Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilities	132767000	USD
CY2011	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	6773000	USD
CY2013	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	35909000	USD
CY2012	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	-21108000	USD
CY2013	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	16268000	USD
CY2012	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	72636000	USD
CY2011	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	114974000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	18753000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	16930000	USD
CY2011Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	44681000	USD
CY2013Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	53804000	USD
CY2012Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	51177000	USD
CY2011	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	509000	USD
CY2012	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3375000	USD
CY2013	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1884000	USD
CY2013	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P5Y0M0D
CY2012	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	21886000	USD
CY2013	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1797000	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	2403000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	49602000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	50906000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	45708000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	49000000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	49000000	USD
CY2013	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	5500000	USD
CY2011	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	5100000	USD
CY2012	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	7500000	USD
CY2011	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	20246000	USD
CY2012	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	17452000	USD
CY2013	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	-16000	USD
CY2013	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2012	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	6235000	USD
CY2011	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-80100000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.60
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-1.22
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	0.25
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.01
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	0.04
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	0.01
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	41534000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-10555000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	11034000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-36455000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32637000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-19614000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-142178000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-18756000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	34596000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-136237000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	6977000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1662000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	26804000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2477000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	7839000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	5369000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-5670000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-26294000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	0.29
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.01
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.30
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.25
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.07
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	203229000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	78073000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	214117000	USD
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	121799000	USD
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4495000	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	72433000	USD
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4502000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	39801000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	36941000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	89409000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	47966000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	35378000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	51871000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	41090000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	162139000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	42695000	USD
CY2013Q4	us-gaap	Minority Interest In Preferred Unit Holders MinorityInterestInPreferredUnitHolders	79953000	USD
CY2012Q4	us-gaap	Minority Interest In Preferred Unit Holders MinorityInterestInPreferredUnitHolders	80046000	USD
CY2013Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.949
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	162246000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	0.36
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	1.11
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	1.21
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4408000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-17721000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	926000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1959000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5941000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-858000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	1200000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	600000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	1100000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-26003000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-28541000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-67138000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-30716000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-8315000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4592000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-10306000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	22886000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-3003000	USD
CY2012Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	50322000	USD
CY2013Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	50025000	USD
CY2012	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	-3111000	USD
CY2013	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	-3451000	USD
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	16600000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	14000000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	17600000	USD
CY2013	us-gaap	Interest Expense InterestExpense	237048000	USD
CY2012	us-gaap	Interest Expense InterestExpense	229373000	USD
CY2011	us-gaap	Interest Expense InterestExpense	272315000	USD
CY2012	us-gaap	Interest Income Operating InterestIncomeOperating	9890000	USD
CY2011	us-gaap	Interest Income Operating InterestIncomeOperating	9655000	USD
CY2013	us-gaap	Interest Income Operating InterestIncomeOperating	16059000	USD
CY2012	us-gaap	Interest Paid InterestPaid	294423000	USD
CY2013	us-gaap	Interest Paid InterestPaid	273635000	USD
CY2011	us-gaap	Interest Paid InterestPaid	336565000	USD
CY2013	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Organization</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Apartment Investment and Management Company, or Aimco, is a Maryland corporation incorporated on January 10, 1994. Aimco is a self-administered and self-managed real estate investment trust, or REIT. AIMCO Properties, L.P., or the Aimco Operating Partnership, is a Delaware limited partnership formed on May 16, 1994, to conduct our business, which is focused on the ownership, management and redevelopment of quality apartment communities located in the largest coastal and job growth markets of the United States.</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Aimco, through its wholly-owned subsidiaries, AIMCO-GP, Inc. and AIMCO-LP Trust, owns a majority of the ownership interests in the Aimco Operating Partnership. Aimco conducts all of its business and owns all of its assets through the Aimco Operating Partnership. Interests in the Aimco Operating Partnership that are held by limited partners other than Aimco are referred to as “OP Units.” OP Units include common partnership units, high performance partnership units and partnership preferred units, which we refer to as common OP Units, HPUs and preferred OP Units, respectively. We also refer to HPUs as common partnership unit equivalents. At </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">, after eliminations for units held by consolidated subsidiaries, the Aimco Operating Partnership had </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">153,837,804</font><font style="font-family:inherit;font-size:10pt;"> common partnership units and equivalents outstanding. At </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">, Aimco owned </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">145,917,387</font><font style="font-family:inherit;font-size:10pt;"> of the common partnership units (</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">94.9%</font><font style="font-family:inherit;font-size:10pt;"> of the common partnership units and equivalents of the Aimco Operating Partnership) and Aimco had outstanding an equal number of shares of its Class A Common Stock, which we refer to as Common Stock.</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Except as the context otherwise requires, “we,” “our” and “us” refer to Aimco, the Aimco Operating Partnership and their consolidated subsidiaries, collectively.</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As of </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">, we owned an equity interest in </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">162</font><font style="font-family:inherit;font-size:10pt;"> conventional apartment communities with </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">50,486</font><font style="font-family:inherit;font-size:10pt;"> apartment homes and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">74</font><font style="font-family:inherit;font-size:10pt;"> affordable apartment communities with </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">10,067</font><font style="font-family:inherit;font-size:10pt;"> apartment homes. Of these properties, we consolidated </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">158</font><font style="font-family:inherit;font-size:10pt;"> conventional apartment communities with </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">50,344</font><font style="font-family:inherit;font-size:10pt;"> apartment homes and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">58</font><font style="font-family:inherit;font-size:10pt;"> affordable apartment communities with </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">8,953</font><font style="font-family:inherit;font-size:10pt;"> apartment homes. These conventional and affordable apartment communities generated </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">90%</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">10%</font><font style="font-family:inherit;font-size:10pt;">, respectively, of our proportionate property net operating income (as defined in </font><font style="font-family:inherit;font-size:10pt;font-weight:normal;">Note 15</font><font style="font-family:inherit;font-size:10pt;">) during the year ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">.</font></div></div>
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-419450000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-435147000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-319572000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	111667000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	40494000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	65192000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	316827000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	325596000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	258819000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	132456000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	-57087000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	207290000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	30535000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1077000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	62905000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-103161000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	82146000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	203673000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	66268000	USD
CY2013Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	10107000	USD
CY2013Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	122037000	USD
CY2013Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5050000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	523000	USD
CY2012Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	67928000	USD
CY2012Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-10609000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	24163000	USD
CY2013	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	14767000	USD
CY2012Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	6014062000	USD
CY2013Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	6332723000	USD
CY2012Q4	us-gaap	Land Land	1857956000	USD
CY2013Q4	us-gaap	Land Land	1881358000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	5400000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4200000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4600000	USD
CY2013	us-gaap	Lessor Leasing Arrangements Operating Leases Term Of Contract LessorLeasingArrangementsOperatingLeasesTermOfContract	P12M
CY2013Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	44600000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	5166440000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	4826716000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6079413000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6401380000	USD
CY2012Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	281438000	USD
CY2013Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	0	USD
CY2012Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2013Q4	us-gaap	Line Of Credit LineOfCredit	50400000	USD
CY2013	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2017-09-01
CY2013Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0375
CY2013	us-gaap	Line Of Credit Facility Interest Rate Description LineOfCreditFacilityInterestRateDescription	LIBOR, plus 1.875%, or, at our option, Prime plus 0.5%
CY2013Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	600000000	USD
CY2013Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	505000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	82192000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	238253000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	398320000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	465321000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	183317000	USD
CY2013	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	147000000	USD
CY2013	us-gaap	Long Term Purchase Commitment Time Period LongTermPurchaseCommitmentTimePeriod	12 months
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	51353000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	51727000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	59946000	USD
CY2013Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	233008000	USD
CY2012Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	271065000	USD
CY2013Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	-27721000	USD
CY2012Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	-31596000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	38779000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2013	us-gaap	Noncontrolling Interest In Net Income Loss Limited Partnerships Nonredeemable NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable	12473000	USD
CY2012	us-gaap	Noncontrolling Interest In Net Income Loss Limited Partnerships Nonredeemable NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable	51218000	USD
CY2011	us-gaap	Noncontrolling Interest In Net Income Loss Limited Partnerships Nonredeemable NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable	-257000	USD
CY2011	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Nonredeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsNonredeemable	-7503000	USD
CY2013	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Nonredeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsNonredeemable	11639000	USD
CY2012	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Nonredeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsNonredeemable	5191000	USD
CY2013	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Nonredeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersNonredeemable	6423000	USD
CY2011	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Nonredeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersNonredeemable	6683000	USD
CY2012	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Nonredeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersNonredeemable	6496000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	2928000	USD
CY2011	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	12358000	USD
CY2013	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	1630000	USD
CY2013Q4	us-gaap	Notes Receivable Net NotesReceivableNet	3145000	USD
CY2012Q4	us-gaap	Notes Receivable Net NotesReceivableNet	102897000	USD
CY2012	us-gaap	Notes Reduction NotesReduction	208134000	USD
CY2011	us-gaap	Notes Reduction NotesReduction	127494000	USD
CY2013	us-gaap	Notes Reduction NotesReduction	126663000	USD
CY2013	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
CY2011	us-gaap	Operating Expenses OperatingExpenses	779064000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	779495000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	725034000	USD
CY2013Q4	us-gaap	Operating Expenses OperatingExpenses	177707000	USD
CY2013Q2	us-gaap	Operating Expenses OperatingExpenses	183033000	USD
CY2013Q1	us-gaap	Operating Expenses OperatingExpenses	184864000	USD
CY2013Q3	us-gaap	Operating Expenses OperatingExpenses	179430000	USD
CY2012Q4	us-gaap	Operating Expenses OperatingExpenses	192338000	USD
CY2012Q2	us-gaap	Operating Expenses OperatingExpenses	190343000	USD
CY2012Q3	us-gaap	Operating Expenses OperatingExpenses	197071000	USD
CY2012Q1	us-gaap	Operating Expenses OperatingExpenses	199743000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	179016000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	249019000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	135291000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	58711000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	73155000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	64513000	USD
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	52640000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	45902000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	45742000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	55367000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	32005000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	10766000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3249000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	841000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1985000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	2249000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2442000	USD
CY2013Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	150800000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	543778000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	502271000	USD
CY2012Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	156662000	USD
CY2013Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	146065000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1667000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1678000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1673000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1734000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-5885000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-2581000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-4188000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1509000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4341000	USD
CY2011	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	18302000	USD
CY2012	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	12130000	USD
CY2013	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	7403000	USD
CY2012	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	12008000	USD
CY2013	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	4341000	USD
CY2011	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	10459000	USD
CY2013	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	34822000	USD
CY2012	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	41769000	USD
CY2011	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	38661000	USD
CY2013	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	813000	USD
CY2012	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	422000	USD
CY2011	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	222000	USD
CY2012	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	270210000	USD
CY2011	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	200372000	USD
CY2013	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	350338000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-18245000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	13799000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-20951000	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	600938000	USD
CY2013	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	36367000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	57583000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	140052000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	104006000	USD
CY2013	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	2804000	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	37019000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	49756000	USD
CY2013	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	16775000	USD
CY2011	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	14811000	USD
CY2012	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	57008000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	51534000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2012	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2011	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2013	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	119101000	USD
CY2012	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	7818000	USD
CY2011	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	15123000	USD
CY2013	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	10863000	USD
CY2012	us-gaap	Payments To Acquire Residential Real Estate PaymentsToAcquireResidentialRealEstate	89716000	USD
CY2011	us-gaap	Payments To Acquire Residential Real Estate PaymentsToAcquireResidentialRealEstate	64976000	USD
CY2013	us-gaap	Payments To Acquire Residential Real Estate PaymentsToAcquireResidentialRealEstate	51291000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	57849000	USD
CY2013	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	63766000	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	58413000	USD
CY2012	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	49888000	USD
CY2013	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2804000	USD
CY2011	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	45852000	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	68114000	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	68114000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications and Adjustments</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain items included in 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;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2011</font><font style="font-family:inherit;font-size:10pt;"> financial statements have been reclassified to conform to the current presentation, including adjustments for discontinued operations.</font></div></div>
CY2012	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2013	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	215517000	USD
CY2011	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	594379000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	71942000	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	243253000	USD
CY2013	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	232965000	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	927093000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-19793000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-8135000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-17074000	USD
	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	0	USD
CY2011	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	0	USD
CY2013	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	50400000	USD
CY2011	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	326853000	USD
CY2013	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	357314000	USD
CY2012	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	484904000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1806000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	993000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	48907000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	195361000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	-58164000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	237825000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	79410000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	6979000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	148603000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	2833000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	34131000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	10647000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	97248000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	53335000	USD
CY2011Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2872190000	USD
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2820765000	USD
CY2010Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2934912000	USD
CY2013Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2822872000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	46869000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	173941000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	92775000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	324576000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	270994000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	193784000	USD
CY2011	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	610430000	USD
CY2012	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	764186000	USD
CY2013	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	462945000	USD
CY2013Q4	us-gaap	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	3700000000	USD
CY2010Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	9468165000	USD
CY2012Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	8333419000	USD
CY2011Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	8917137000	USD
CY2013Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	8214081000	USD
CY2011	us-gaap	Real Estate Improvements RealEstateImprovements	207263000	USD
CY2012	us-gaap	Real Estate Improvements RealEstateImprovements	272103000	USD
CY2013	us-gaap	Real Estate Improvements RealEstateImprovements	376038000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2637057000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2822872000	USD
CY2013Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	8214081000	USD
CY2012Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	7872018000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	5391209000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	5234961000	USD
CY2012Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	18700000	USD
CY2013Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	16900000	USD
CY2013	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	66058000	USD
CY2011	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	44681000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	131374000	USD
CY2013	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	98489000	USD
CY2011	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	192542000	USD
CY2012	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	62589000	USD
CY2011	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	875694000	USD
CY2013	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	939231000	USD
CY2012	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	916742000	USD
CY2013	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	472276000	USD
CY2012	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	447792000	USD
CY2011	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1083690000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	145585000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	127037000	USD
CY2012	us-gaap	Revenues Revenues	958511000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1000000	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	300000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	10900000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3600000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3000000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	4337785000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	4413083000	USD
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2013Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	3600000	USD
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y0M0D
CY2013	us-gaap	Revenues Revenues	974053000	USD
CY2011	us-gaap	Revenues Revenues	914355000	USD
CY2013Q2	us-gaap	Revenues Revenues	241744000	USD
CY2013Q1	us-gaap	Revenues Revenues	237504000	USD
CY2013Q4	us-gaap	Revenues Revenues	250862000	USD
CY2013Q3	us-gaap	Revenues Revenues	243943000	USD
CY2012Q4	us-gaap	Revenues Revenues	247705000	USD
CY2012Q3	us-gaap	Revenues Revenues	242973000	USD
CY2012Q2	us-gaap	Revenues Revenues	236085000	USD
CY2012Q1	us-gaap	Revenues Revenues	231748000	USD
CY2013	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	288666000	USD
CY2012	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	353414000	USD
CY2011	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	382213000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	4871000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	5645000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	5381000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	4400000	shares
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y0M0D
CY2011	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	2107000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	9818000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	19990000	USD
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	993000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	48907000	USD
CY2011	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	16366000	USD
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	600938000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	967457000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	915425000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1172744000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1154894000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1144674000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1306772000	USD
CY2013	us-gaap	Stockholders Equity Other StockholdersEquityOther	-2248000	USD
CY2012	us-gaap	Stockholders Equity Other StockholdersEquityOther	-4547000	USD
CY2013Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	13400000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3536000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3917000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4071000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2871000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	154000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	303000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	99000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	764000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	684000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2200000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts included in the financial statements and accompanying notes thereto. Actual results could differ from those estimates.</font></div></div>
CY2013	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1000000	USD
CY2013	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	241000	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	134479000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	145532000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	119312000	shares
CY2013Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	145169000	shares
CY2013Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	145499000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	145563000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	145674000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	145035000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	120526000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	144959000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	127395000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	119312000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145291000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	134479000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145334000	shares
CY2013Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145341000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145321000	shares
CY2013Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145169000	shares
CY2012Q4	aiv	Accrued And Other Liabilities Related To Legally Sold Portfolio AccruedAndOtherLiabilitiesRelatedToLegallySoldPortfolio	29422000	USD
CY2013Q4	aiv	Accrued And Other Liabilities Related To Legally Sold Portfolio AccruedAndOtherLiabilitiesRelatedToLegallySoldPortfolio	19263000	USD
CY2013Q4	aiv	Available For Sale Securities Face Value AvailableForSaleSecuritiesFaceValue	100900000	USD
CY2013	aiv	Capital Gains Dividends Per Share Declared CapitalGainsDividendsPerShareDeclared	0.13
CY2011	aiv	Capital Gains Dividends Per Share Declared CapitalGainsDividendsPerShareDeclared	0.12
CY2012	aiv	Capital Gains Dividends Per Share Declared CapitalGainsDividendsPerShareDeclared	0.35
CY2013	aiv	Capital Gains Dividends Per Share Declared Percentage CapitalGainsDividendsPerShareDeclaredPercentage	0.139
CY2012	aiv	Capital Gains Dividends Per Share Declared Percentage CapitalGainsDividendsPerShareDeclaredPercentage	0.466
CY2011	aiv	Capital Gains Dividends Per Share Declared Percentage CapitalGainsDividendsPerShareDeclaredPercentage	0.240
CY2013Q4	aiv	Carrying Amount Of Consolidated Debt Including Amounts Reported In Liabilities Related To Assets For Sale CarryingAmountOfConsolidatedDebtIncludingAmountsReportedInLiabilitiesRelatedToAssetsForSale	4400000000	USD
CY2012Q4	aiv	Carrying Amount Of Consolidated Debt Including Amounts Reported In Liabilities Related To Assets For Sale CarryingAmountOfConsolidatedDebtIncludingAmountsReportedInLiabilitiesRelatedToAssetsForSale	4700000000	USD
CY2012	aiv	Carrying Amount Of Real Estate Held For Use Or Held For Sale Prior To Recognition Of Impairment Losses CarryingAmountOfRealEstateHeldForUseOrHeldForSalePriorToRecognitionOfImpairmentLosses	81800000	USD
CY2011	aiv	Carrying Amount Of Real Estate Held For Use Or Held For Sale Prior To Recognition Of Impairment Losses CarryingAmountOfRealEstateHeldForUseOrHeldForSalePriorToRecognitionOfImpairmentLosses	108200000	USD
CY2012Q4	aiv	Cash And Cash Equivalents And Restricted Cash Related To Legally Sold Portfolio CashAndCashEquivalentsAndRestrictedCashRelatedToLegallySoldPortfolio	31558000	USD
CY2013Q4	aiv	Cash And Cash Equivalents And Restricted Cash Related To Legally Sold Portfolio CashAndCashEquivalentsAndRestrictedCashRelatedToLegallySoldPortfolio	29046000	USD
CY2011	aiv	Common Stock Dividends Per Share Declared Percentage CommonStockDividendsPerShareDeclaredPercentage	1
CY2012	aiv	Common Stock Dividends Per Share Declared Percentage CommonStockDividendsPerShareDeclaredPercentage	1
CY2013	aiv	Common Stock Dividends Per Share Declared Percentage CommonStockDividendsPerShareDeclaredPercentage	1
CY2011	aiv	Common Stock Shares Sold During Period Value CommonStockSharesSoldDuringPeriodValue	71942000	USD
CY2012	aiv	Common Stock Shares Sold During Period Value CommonStockSharesSoldDuringPeriodValue	594379000	USD
CY2011	aiv	Consolidated Income Loss Subject To Tax ConsolidatedIncomeLossSubjectToTax	5000000	USD
CY2013	aiv	Consolidated Income Loss Subject To Tax ConsolidatedIncomeLossSubjectToTax	46600000	USD
CY2012	aiv	Consolidated Income Loss Subject To Tax ConsolidatedIncomeLossSubjectToTax	19000000	USD
CY2011	aiv	Effective Income Tax Rate Reconciliation Effect Of Intercompany Transfers Of Assets EffectiveIncomeTaxRateReconciliationEffectOfIntercompanyTransfersOfAssets	-0.392
CY2011	aiv	Effective Income Tax Rate Reconciliation Effect Of Permanent Differences EffectiveIncomeTaxRateReconciliationEffectOfPermanentDifferences	-0.113
CY2013Q4	aiv	Deferred Tax Assets Receivables DeferredTaxAssetsReceivables	440000	USD
CY2012Q4	aiv	Deferred Tax Assets Receivables DeferredTaxAssetsReceivables	1183000	USD
CY2013Q4	aiv	Deferred Tax Liabilities Partnership Differences DeferredTaxLiabilitiesPartnershipDifferences	50290000	USD
CY2012Q4	aiv	Deferred Tax Liabilities Partnership Differences DeferredTaxLiabilitiesPartnershipDifferences	29745000	USD
CY2013	aiv	Derecognition Of Remaining Noncontrolling Interest Balances Resulting In Adjustment To Net Income Attributable To Parent DerecognitionOfRemainingNoncontrollingInterestBalancesResultingInAdjustmentToNetIncomeAttributableToParent	20600000	USD
CY2011	aiv	Discontinued Operation Income Loss From Discontinued Operation Before Gain On Dispositions Of Real Estate And Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeGainOnDispositionsOfRealEstateAndIncomeTax	-24740000	USD
CY2012	aiv	Discontinued Operation Income Loss From Discontinued Operation Before Gain On Dispositions Of Real Estate And Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeGainOnDispositionsOfRealEstateAndIncomeTax	-10580000	USD
CY2013	aiv	Discontinued Operation Income Loss From Discontinued Operation Before Gain On Dispositions Of Real Estate And Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeGainOnDispositionsOfRealEstateAndIncomeTax	2098000	USD
CY2012Q4	aiv	Disposal Group Including Discontinued Operation Property Debt DisposalGroupIncludingDiscontinuedOperationPropertyDebt	278538000	USD
CY2011	aiv	Effect Of Changes In Ownership For Consolidated Entities EffectOfChangesInOwnershipForConsolidatedEntities	22313000	USD
CY2012	aiv	Effect Of Changes In Ownership For Consolidated Entities EffectOfChangesInOwnershipForConsolidatedEntities	53240000	USD
CY2013	aiv	Effect Of Changes In Ownership For Consolidated Entities EffectOfChangesInOwnershipForConsolidatedEntities	17675000	USD
CY2013	aiv	Effective Income Tax Rate Continuing And Discontinued Operations EffectiveIncomeTaxRateContinuingAndDiscontinuedOperations	0.200
CY2012	aiv	Effective Income Tax Rate Continuing And Discontinued Operations EffectiveIncomeTaxRateContinuingAndDiscontinuedOperations	0.473
CY2011	aiv	Effective Income Tax Rate Continuing And Discontinued Operations EffectiveIncomeTaxRateContinuingAndDiscontinuedOperations	-0.111
CY2012	aiv	Effective Income Tax Rate Reconciliation Effect Of Intercompany Transfers Of Assets EffectiveIncomeTaxRateReconciliationEffectOfIntercompanyTransfersOfAssets	0.038
CY2013	aiv	Effective Income Tax Rate Reconciliation Effect Of Intercompany Transfers Of Assets EffectiveIncomeTaxRateReconciliationEffectOfIntercompanyTransfersOfAssets	-0.092
CY2012	aiv	Effective Income Tax Rate Reconciliation Effect Of Permanent Differences EffectiveIncomeTaxRateReconciliationEffectOfPermanentDifferences	-0.013
CY2013	aiv	Effective Income Tax Rate Reconciliation Effect Of Permanent Differences EffectiveIncomeTaxRateReconciliationEffectOfPermanentDifferences	-0.006
CY2012	aiv	Effective Income Tax Rate Reconciliation Effect Of Write Off Of Excess Tax Basis EffectiveIncomeTaxRateReconciliationEffectOfWriteOffOfExcessTaxBasis	0.000
CY2013	aiv	Effective Income Tax Rate Reconciliation Effect Of Write Off Of Excess Tax Basis EffectiveIncomeTaxRateReconciliationEffectOfWriteOffOfExcessTaxBasis	-0.089
CY2011	aiv	Effective Income Tax Rate Reconciliation Effect Of Write Off Of Excess Tax Basis EffectiveIncomeTaxRateReconciliationEffectOfWriteOffOfExcessTaxBasis	0.000
CY2013	aiv	Equity In Earnings Or Loss Of Unconsolidated Entities Gains Or Losses On Dispositions And Other Net Related To Legally Sold Portfolio EquityInEarningsOrLossOfUnconsolidatedEntitiesGainsOrLossesOnDispositionsAndOtherNetRelatedToLegallySoldPortfolio	748000	USD
CY2012	aiv	Equity Method Investment Gain On Sale And Impairment Losses Net EquityMethodInvestmentGainOnSaleAndImpairmentLossesNet	-4140000	USD
CY2013	aiv	Equity Method Investment Gain On Sale And Impairment Losses Net EquityMethodInvestmentGainOnSaleAndImpairmentLossesNet	36212000	USD
CY2011	aiv	Equity Method Investment Gain On Sale And Impairment Losses Net EquityMethodInvestmentGainOnSaleAndImpairmentLossesNet	22598000	USD
CY2011	aiv	Equity Method Investment Summarized Financial Information Depreciation Expense EquityMethodInvestmentSummarizedFinancialInformationDepreciationExpense	26323000	USD
CY2013	aiv	Equity Method Investment Summarized Financial Information Depreciation Expense EquityMethodInvestmentSummarizedFinancialInformationDepreciationExpense	3300000	USD
CY2012	aiv	Equity Method Investment Summarized Financial Information Depreciation Expense EquityMethodInvestmentSummarizedFinancialInformationDepreciationExpense	18388000	USD
CY2011	aiv	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	27108000	USD
CY2012	aiv	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	21354000	USD
CY2013	aiv	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	4185000	USD
CY2012	aiv	Equity Method Investment Summarized Financial Information Property Operating Expenses EquityMethodInvestmentSummarizedFinancialInformationPropertyOperatingExpenses	49331000	USD
CY2011	aiv	Fair Value Inputs Unlevered Free Cash Flow Internal Rate Of Return FairValueInputsUnleveredFreeCashFlowInternalRateOfReturn	0.0787
CY2012	aiv	Fair Value Of Real Estate Held For Use Or Held For Sale Impaired During Period FairValueOfRealEstateHeldForUseOrHeldForSaleImpairedDuringPeriod	65800000	USD
CY2011	aiv	Fair Value Of Real Estate Held For Use Or Held For Sale Impaired During Period FairValueOfRealEstateHeldForUseOrHeldForSaleImpairedDuringPeriod	92300000	USD
CY2012	aiv	Income Loss From Discontinued Operation Attributable To Operating Partnership IncomeLossFromDiscontinuedOperationAttributableToOperatingPartnership	172484000	USD
CY2012	aiv	Income Loss From Discontinued Operations Attributable To Noncontrolling Interest Limited Partnerships IncomeLossFromDiscontinuedOperationsAttributableToNoncontrollingInterestLimitedPartnerships	41633000	USD
CY2011	aiv	Equity Method Investment Summarized Financial Information Property Operating Expenses EquityMethodInvestmentSummarizedFinancialInformationPropertyOperatingExpenses	75934000	USD
CY2013	aiv	Equity Method Investment Summarized Financial Information Property Operating Expenses EquityMethodInvestmentSummarizedFinancialInformationPropertyOperatingExpenses	8470000	USD
CY2012Q4	aiv	Equity Method Investment Summarized Financial Information Real Estate Net EquityMethodInvestmentSummarizedFinancialInformationRealEstateNet	107419000	USD
CY2013Q4	aiv	Equity Method Investment Summarized Financial Information Real Estate Net EquityMethodInvestmentSummarizedFinancialInformationRealEstateNet	88014000	USD
CY2011Q4	aiv	Equity Method Investment Summarized Financial Information Real Estate Net EquityMethodInvestmentSummarizedFinancialInformationRealEstateNet	429780000	USD
CY2013Q4	aiv	Equity Method Investment Summarized Financial Information Secured And Other Notes Payable EquityMethodInvestmentSummarizedFinancialInformationSecuredAndOtherNotesPayable	60660000	USD
CY2011Q4	aiv	Equity Method Investment Summarized Financial Information Secured And Other Notes Payable EquityMethodInvestmentSummarizedFinancialInformationSecuredAndOtherNotesPayable	321236000	USD
CY2012Q4	aiv	Equity Method Investment Summarized Financial Information Secured And Other Notes Payable EquityMethodInvestmentSummarizedFinancialInformationSecuredAndOtherNotesPayable	122019000	USD
CY2013Q4	aiv	Estimated Fair Value Of Unencumbered Real Estate EstimatedFairValueOfUnencumberedRealEstate	380000000	USD
CY2013Q4	aiv	Excepted Remaining Term Available For Sale Debt Securities ExceptedRemainingTermAvailableForSaleDebtSecurities	P7Y5M
CY2012	aiv	Excess Of Consideration Paid Over Carrying Amount Of Noncontrolling Interests Acquired Recognized As Adjustment Of Equity ExcessOfConsiderationPaidOverCarryingAmountOfNoncontrollingInterestsAcquiredRecognizedAsAdjustmentOfEquity	44777000	USD
CY2011	aiv	Excess Of Consideration Paid Over Carrying Amount Of Noncontrolling Interests Acquired Recognized As Adjustment Of Equity ExcessOfConsiderationPaidOverCarryingAmountOfNoncontrollingInterestsAcquiredRecognizedAsAdjustmentOfEquity	36260000	USD
CY2013	aiv	Expenses Related To Legally Sold Portfolio ExpensesRelatedToLegallySoldPortfolio	21188000	USD
CY2012	aiv	Fair Value Assets And Liabilities Measured On Recurring Basis Unrealized Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnrealizedGainLossIncludedInEarnings	-48000	USD
CY2013	aiv	Fair Value Assets And Liabilities Measured On Recurring Basis Unrealized Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnrealizedGainLossIncludedInEarnings	-48000	USD
CY2012	aiv	Fair Value Assets And Liabilities Measured On Recurring Basis Unrealized Gain Loss Included In Equity FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnrealizedGainLossIncludedInEquity	1760000	USD
CY2013	aiv	Fair Value Assets And Liabilities Measured On Recurring Basis Unrealized Gain Loss Included In Equity FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnrealizedGainLossIncludedInEquity	-2454000	USD
CY2012	aiv	Fair Value Inputs Unlevered Free Cash Flow Internal Rate Of Return FairValueInputsUnleveredFreeCashFlowInternalRateOfReturn	0.0739
CY2013	aiv	General Partner Interests In Low Income Housing Tax Credit Partnerships Held By Aimco GeneralPartnerInterestsInLowIncomeHousingTaxCreditPartnershipsHeldByAimco	one percent or less
CY2011	aiv	Impairment Losses On Real Estate Held For Use Or Held For Sale ImpairmentLossesOnRealEstateHeldForUseOrHeldForSale	15900000	USD
CY2012	aiv	Impairment Losses On Real Estate Held For Use Or Held For Sale ImpairmentLossesOnRealEstateHeldForUseOrHeldForSale	16000000	USD
CY2013	aiv	Income Loss From Discontinued Operation Attributable To Operating Partnership IncomeLossFromDiscontinuedOperationAttributableToOperatingPartnership	171387000	USD
CY2011	aiv	Income Loss From Discontinued Operation Attributable To Operating Partnership IncomeLossFromDiscontinuedOperationAttributableToOperatingPartnership	45842000	USD
CY2013	aiv	Income Loss From Discontinued Operations Attributable To Noncontrolling Interest Limited Partnerships IncomeLossFromDiscontinuedOperationsAttributableToNoncontrollingInterestLimitedPartnerships	31842000	USD
CY2011	aiv	Income Loss From Discontinued Operations Attributable To Noncontrolling Interest Limited Partnerships IncomeLossFromDiscontinuedOperationsAttributableToNoncontrollingInterestLimitedPartnerships	32231000	USD
CY2013	aiv	Income Loss From Discontinued Operations Attributable To Noncontrolling Interest Operating Partnerships IncomeLossFromDiscontinuedOperationsAttributableToNoncontrollingInterestOperatingPartnerships	9248000	USD
CY2012	aiv	Income Loss From Discontinued Operations Attributable To Noncontrolling Interest Operating Partnerships IncomeLossFromDiscontinuedOperationsAttributableToNoncontrollingInterestOperatingPartnerships	10238000	USD
CY2011	aiv	Income Loss From Discontinued Operations Attributable To Noncontrolling Interest Operating Partnerships IncomeLossFromDiscontinuedOperationsAttributableToNoncontrollingInterestOperatingPartnerships	3147000	USD
CY2013	aiv	Income Tax Expense Benefits IncomeTaxExpenseBenefits	9369000	USD
CY2012	aiv	Income Tax Expense Benefits IncomeTaxExpenseBenefits	8975000	USD
CY2011	aiv	Income Tax Expense Benefits IncomeTaxExpenseBenefits	-551000	USD
CY2013	aiv	Income Tax Expense Relatedto Legally Sold Portfolio IncomeTaxExpenseRelatedtoLegallySoldPortfolio	639000	USD
CY2013	aiv	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance Continuingand Discontinued Operations IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowanceContinuingandDiscontinuedOperations	0	USD
CY2011	aiv	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance Continuingand Discontinued Operations IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowanceContinuingandDiscontinuedOperations	522000	USD
CY2012	aiv	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance Continuingand Discontinued Operations IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowanceContinuingandDiscontinuedOperations	0	USD
CY2013	aiv	Income Tax Reconciliation Effect Of Intercompany Transfers Of Assets IncomeTaxReconciliationEffectOfIntercompanyTransfersOfAssets	4272000	USD
CY2011	aiv	Income Tax Reconciliation Effect Of Intercompany Transfers Of Assets IncomeTaxReconciliationEffectOfIntercompanyTransfersOfAssets	1965000	USD
CY2012	aiv	Income Tax Reconciliation Effect Of Intercompany Transfers Of Assets IncomeTaxReconciliationEffectOfIntercompanyTransfersOfAssets	-730000	USD
CY2011	aiv	Income Tax Reconciliation Effect Of Permanent Differences IncomeTaxReconciliationEffectOfPermanentDifferences	-565000	USD
CY2012	aiv	Income Tax Reconciliation Effect Of Permanent Differences IncomeTaxReconciliationEffectOfPermanentDifferences	-256000	USD
CY2013	aiv	Income Tax Reconciliation Effect Of Permanent Differences IncomeTaxReconciliationEffectOfPermanentDifferences	-296000	USD
CY2012	aiv	Income Tax Reconciliation Effect Of Write Off Of Excess Tax Basis IncomeTaxReconciliationEffectOfWriteOffOfExcessTaxBasis	0	USD
CY2013	aiv	Income Tax Reconciliation Effect Of Write Off Of Excess Tax Basis IncomeTaxReconciliationEffectOfWriteOffOfExcessTaxBasis	-4137000	USD
CY2011	aiv	Income Tax Reconciliation Effect Of Write Off Of Excess Tax Basis IncomeTaxReconciliationEffectOfWriteOffOfExcessTaxBasis	0	USD
CY2011	aiv	Income Tax Reconciliation Income Tax Expense Benefit Continuingand Discontinued Operations At Federal Statutory Income Tax Rate Amount IncomeTaxReconciliationIncomeTaxExpenseBenefitContinuingandDiscontinuedOperationsAtFederalStatutoryIncomeTaxRateAmount	1756000	USD
CY2013	aiv	Income Tax Reconciliation Income Tax Expense Benefit Continuingand Discontinued Operations At Federal Statutory Income Tax Rate Amount IncomeTaxReconciliationIncomeTaxExpenseBenefitContinuingandDiscontinuedOperationsAtFederalStatutoryIncomeTaxRateAmount	16326000	USD
CY2012	aiv	Income Tax Reconciliation Income Tax Expense Benefit Continuingand Discontinued Operations At Federal Statutory Income Tax Rate Amount IncomeTaxReconciliationIncomeTaxExpenseBenefitContinuingandDiscontinuedOperationsAtFederalStatutoryIncomeTaxRateAmount	6642000	USD
CY2012	aiv	Income Tax Reconciliation State And Local Income Taxes Continuing And Discontinued Operations IncomeTaxReconciliationStateAndLocalIncomeTaxesContinuingAndDiscontinuedOperations	1859000	USD
CY2013	aiv	Income Tax Reconciliation State And Local Income Taxes Continuing And Discontinued Operations IncomeTaxReconciliationStateAndLocalIncomeTaxesContinuingAndDiscontinuedOperations	1748000	USD
CY2011	aiv	Income Tax Reconciliation State And Local Income Taxes Continuing And Discontinued Operations IncomeTaxReconciliationStateAndLocalIncomeTaxesContinuingAndDiscontinuedOperations	-299000	USD
CY2012Q4	aiv	Investment In Unconsolidated Real Estate Partnerships Related To Legally Sold Portfolio InvestmentInUnconsolidatedRealEstatePartnershipsRelatedToLegallySoldPortfolio	15987000	USD
CY2013Q4	aiv	Investment In Unconsolidated Real Estate Partnerships Related To Legally Sold Portfolio InvestmentInUnconsolidatedRealEstatePartnershipsRelatedToLegallySoldPortfolio	10817000	USD
CY2013	aiv	Limited Partner Interests In Low Income Housing Tax Credit Partnerships Held By Unaffiliated Investors LimitedPartnerInterestsInLowIncomeHousingTaxCreditPartnershipsHeldByUnaffiliatedInvestors	at least 99%
CY2013	aiv	Line Of Credit Facility Extension Options Description LineOfCreditFacilityExtensionOptionsDescription	an additional one-year period
CY2013Q4	aiv	Long Term Debt Amortization And Maturities Repayments Of Principal After Five Year LongTermDebtAmortizationAndMaturitiesRepaymentsOfPrincipalAfterFiveYear	2555113000	USD
CY2013Q4	aiv	Long Term Debt Amortization And Maturities Repayments Of Principal In Next Twelve Months LongTermDebtAmortizationAndMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	170202000	USD
CY2013Q4	aiv	Long Term Debt Amortization And Maturities Repayments Of Principal In Year Five LongTermDebtAmortizationAndMaturitiesRepaymentsOfPrincipalInYearFive	312485000	USD
CY2013Q4	aiv	Long Term Debt Amortization And Maturities Repayments Of Principal In Year Four LongTermDebtAmortizationAndMaturitiesRepaymentsOfPrincipalInYearFour	477543000	USD
CY2013Q4	aiv	Long Term Debt Amortization And Maturities Repayments Of Principal In Year Three LongTermDebtAmortizationAndMaturitiesRepaymentsOfPrincipalInYearThree	550701000	USD
CY2013Q4	aiv	Long Term Debt Amortization And Maturities Repayments Of Principal In Year Two LongTermDebtAmortizationAndMaturitiesRepaymentsOfPrincipalInYearTwo	271741000	USD
CY2013Q4	aiv	Long Term Debt Amortization Of Principal In Next Twelve Months LongTermDebtAmortizationOfPrincipalInNextTwelveMonths	88010000	USD
CY2013Q4	aiv	Long Term Debt Amortization Of Principal In Next Year Three LongTermDebtAmortizationOfPrincipalInNextYearThree	85380000	USD
CY2013Q4	aiv	Long Term Debt Amortization Of Principal In Year Five LongTermDebtAmortizationOfPrincipalInYearFive	74232000	USD
CY2013Q4	aiv	Long Term Debt Amortization Of Principal In Year Four LongTermDebtAmortizationOfPrincipalInYearFour	79223000	USD
CY2013Q4	aiv	Long Term Debt Amortization Of Principal In Year Two LongTermDebtAmortizationOfPrincipalInYearTwo	88424000	USD
CY2013	aiv	Method Used In Calculating Earnings Per Share MethodUsedInCalculatingEarningsPerShare	two-class method
CY2013	aiv	Net Income Attributable To Participating Securities Continuing Operations NetIncomeAttributableToParticipatingSecuritiesContinuingOperations	813000	USD
CY2011	aiv	Net Income Attributable To Participating Securities Continuing Operations NetIncomeAttributableToParticipatingSecuritiesContinuingOperations	222000	USD
CY2012	aiv	Net Income Attributable To Participating Securities Continuing Operations NetIncomeAttributableToParticipatingSecuritiesContinuingOperations	422000	USD
CY2012	aiv	Net Income Loss Including Portion Attributable To Noncontrolling Interests Included In Permanent Equity Excluding Portion Attributable To Noncontrolling Interests Included In Temporary Equity NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestsIncludedInPermanentEquityExcludingPortionAttributableToNoncontrollingInterestsIncludedInTemporaryEquity	188865000	USD
CY2013	aiv	Net Income Loss Including Portion Attributable To Noncontrolling Interests Included In Permanent Equity Excluding Portion Attributable To Noncontrolling Interests Included In Temporary Equity NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestsIncludedInPermanentEquityExcludingPortionAttributableToNoncontrollingInterestsIncludedInTemporaryEquity	231402000	USD
CY2011	aiv	Net Income Loss Including Portion Attributable To Noncontrolling Interests Included In Permanent Equity Excluding Portion Attributable To Noncontrolling Interests Included In Temporary Equity NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestsIncludedInPermanentEquityExcludingPortionAttributableToNoncontrollingInterestsIncludedInTemporaryEquity	-64847000	USD
CY2013	aiv	Net Income Loss Related To Legally Sold Portfolio NetIncomeLossRelatedToLegallySoldPortfolio	1775000	USD
CY2013	aiv	Net Income Of Sold Portfolio Attributable To Aimco And Aimco Operating Partnership NetIncomeOfSoldPortfolioAttributableToAimcoAndAimcoOperatingPartnership	22506000	USD
CY2011	aiv	Noncontrolling Interest Weighted Average Ownership Percentage By Noncontrolling Owners During Period NoncontrollingInterestWeightedAverageOwnershipPercentageByNoncontrollingOwnersDuringPeriod	0.066
CY2013	aiv	Noncontrolling Interest Weighted Average Ownership Percentage By Noncontrolling Owners During Period NoncontrollingInterestWeightedAverageOwnershipPercentageByNoncontrollingOwnersDuringPeriod	0.052
CY2012	aiv	Noncontrolling Interest Weighted Average Ownership Percentage By Noncontrolling Owners During Period NoncontrollingInterestWeightedAverageOwnershipPercentageByNoncontrollingOwnersDuringPeriod	0.057
CY2013	aiv	Noncontrolling Interests In Consolidated Real Estate Partnerships Related To Legally Sold Portfolio NoncontrollingInterestsInConsolidatedRealEstatePartnershipsRelatedToLegallySoldPortfolio	-21370000	USD
CY2011Q4	aiv	Nonvested Restricted Shares Of Common Stock With Non Forfeitable Dividend Rights NonvestedRestrictedSharesOfCommonStockWithNonForfeitableDividendRights	500000	shares
CY2013Q4	aiv	Nonvested Restricted Shares Of Common Stock With Non Forfeitable Dividend Rights NonvestedRestrictedSharesOfCommonStockWithNonForfeitableDividendRights	600000	shares
CY2012Q4	aiv	Nonvested Restricted Shares Of Common Stock With Non Forfeitable Dividend Rights NonvestedRestrictedSharesOfCommonStockWithNonForfeitableDividendRights	500000	shares
CY2011	aiv	Notes Reduction Relatedto Legacy Asset Management Business NotesReductionRelatedtoLegacyAssetManagementBusiness	0	USD
CY2013	aiv	Notes Reduction Relatedto Legacy Asset Management Business NotesReductionRelatedtoLegacyAssetManagementBusiness	8149000	USD
CY2012	aiv	Notes Reduction Relatedto Legacy Asset Management Business NotesReductionRelatedtoLegacyAssetManagementBusiness	15019000	USD
CY2012	aiv	Number Of Consolidated Partnerships In Which Remaining Noncontrolling Interests Acquired NumberOfConsolidatedPartnershipsInWhichRemainingNoncontrollingInterestsAcquired	11	PartnershipUnit
CY2011	aiv	Number Of Consolidated Partnerships In Which Remaining Noncontrolling Interests Acquired NumberOfConsolidatedPartnershipsInWhichRemainingNoncontrollingInterestsAcquired	12	PartnershipUnit
CY2013	aiv	Number Of Consolidated Partnerships In Which Remaining Noncontrolling Interests Acquired NumberOfConsolidatedPartnershipsInWhichRemainingNoncontrollingInterestsAcquired	3	PartnershipUnit
CY2012	aiv	Number Of Consolidated Properties Disposed NumberOfConsolidatedPropertiesDisposed	75	Property
CY2013	aiv	Ordinary Income Dividends Per Share Declared OrdinaryIncomeDividendsPerShareDeclared	0.17
CY2012	aiv	Ordinary Income Dividends Per Share Declared OrdinaryIncomeDividendsPerShareDeclared	0.00
CY2011	aiv	Ordinary Income Dividends Per Share Declared Percentage OrdinaryIncomeDividendsPerShareDeclaredPercentage	0.000
CY2013	aiv	Ordinary Income Dividends Per Share Declared Percentage OrdinaryIncomeDividendsPerShareDeclaredPercentage	0.179
CY2012	aiv	Ordinary Income Dividends Per Share Declared Percentage OrdinaryIncomeDividendsPerShareDeclaredPercentage	0.000
CY2012	aiv	Other Adjustments To Income From Discontinued Operations OtherAdjustmentsToIncomeFromDiscontinuedOperations	27854000	USD
CY2013	aiv	Other Adjustments To Income From Discontinued Operations OtherAdjustmentsToIncomeFromDiscontinuedOperations	10019000	USD
CY2013	aiv	Number Of Consolidated Properties Disposed NumberOfConsolidatedPropertiesDisposed	29	Property
CY2011	aiv	Number Of Consolidated Properties Disposed NumberOfConsolidatedPropertiesDisposed	67	Property
CY2013Q4	aiv	Number Of Consolidated Properties In Legally Sold Portfolio NumberOfConsolidatedPropertiesInLegallySoldPortfolio	14	Property
CY2013Q4	aiv	Number Of Partnerships In Legally Sold Portfolio NumberOfPartnershipsInLegallySoldPortfolio	17
CY2012	aiv	Number Of Properties Impaired During Period NumberOfPropertiesImpairedDuringPeriod	9	Property
CY2011	aiv	Number Of Properties Impaired During Period NumberOfPropertiesImpairedDuringPeriod	19	Property
CY2011	aiv	Number Of Properties Of Consolidated Partnerships Acquired NumberOfPropertiesOfConsolidatedPartnershipsAcquired	15	Property
CY2012	aiv	Number Of Properties Of Consolidated Partnerships Acquired NumberOfPropertiesOfConsolidatedPartnershipsAcquired	17	Property
CY2013	aiv	Number Of Properties Of Consolidated Partnerships Acquired NumberOfPropertiesOfConsolidatedPartnershipsAcquired	5	Property
CY2013Q4	aiv	Number Of Properties To Be Sold Period For Evaluation NumberOfPropertiesToBeSoldPeriodForEvaluation	P12M
CY2013Q4	aiv	Number Of Sares Of Cmmon Stock Required To Redeem Preferred Op Units Tendered For Redemption If Parent Chooses To Redeem In Sares Rther Than Cash NumberOfSaresOfCmmonStockRequiredToRedeemPreferredOpUnitsTenderedForRedemptionIfParentChoosesToRedeemInSaresRtherThanCash	3100000	shares
CY2013Q4	aiv	Number Of Unconsolidated Properties In Legally Sold Portfolio NumberOfUnconsolidatedPropertiesInLegallySoldPortfolio	61	Property
CY2012	aiv	Number Of Units In Consolidated Properties Disposed NumberOfUnitsInConsolidatedPropertiesDisposed	11232
CY2011	aiv	Number Of Units In Consolidated Properties Disposed NumberOfUnitsInConsolidatedPropertiesDisposed	10912
CY2013	aiv	Number Of Units In Consolidated Properties Disposed NumberOfUnitsInConsolidatedPropertiesDisposed	6953
CY2013	aiv	Operating Loss Carryforwards Generated During Period OperatingLossCarryforwardsGeneratedDuringPeriod	15800000	USD
CY2012	aiv	Operating Partnership Units Issued In Exchange For Non Controlling Interests In Consolidated Real Estate Partnerships OperatingPartnershipUnitsIssuedInExchangeForNonControllingInterestsInConsolidatedRealEstatePartnerships	4553000	USD
CY2011	aiv	Operating Partnership Units Issued In Exchange For Non Controlling Interests In Consolidated Real Estate Partnerships OperatingPartnershipUnitsIssuedInExchangeForNonControllingInterestsInConsolidatedRealEstatePartnerships	168000	USD
CY2013	aiv	Operating Partnership Units Issued In Exchange For Non Controlling Interests In Consolidated Real Estate Partnerships OperatingPartnershipUnitsIssuedInExchangeForNonControllingInterestsInConsolidatedRealEstatePartnerships	416000	USD
CY2011	aiv	Ordinary Income Dividends Per Share Declared OrdinaryIncomeDividendsPerShareDeclared	0.00
CY2011	aiv	Other Adjustments To Income From Discontinued Operations OtherAdjustmentsToIncomeFromDiscontinuedOperations	27088000	USD
CY2012Q4	aiv	Other Assets Related To Legally Sold Portfolio OtherAssetsRelatedToLegallySoldPortfolio	4146000	USD
CY2013Q4	aiv	Other Assets Related To Legally Sold Portfolio OtherAssetsRelatedToLegallySoldPortfolio	3811000	USD
CY2013	aiv	Other Comprehensive Income Loss OtherComprehensiveIncomeLoss	-776000	USD
CY2012	aiv	Other Comprehensive Income Loss OtherComprehensiveIncomeLoss	3433000	USD
CY2011	aiv	Other Comprehensive Income Loss OtherComprehensiveIncomeLoss	-5727000	USD
CY2013	aiv	Other Direct And Indirect Costs Capitalized OtherDirectAndIndirectCostsCapitalized	33200000	USD
CY2012	aiv	Other Direct And Indirect Costs Capitalized OtherDirectAndIndirectCostsCapitalized	33700000	USD
CY2011	aiv	Other Direct And Indirect Costs Capitalized OtherDirectAndIndirectCostsCapitalized	29000000	USD
CY2011	aiv	Other Items Included In Continuing Operations OtherItemsIncludedInContinuingOperations	271528000	USD
CY2012	aiv	Other Items Included In Continuing Operations OtherItemsIncludedInContinuingOperations	197772000	USD
CY2013	aiv	Other Items Included In Continuing Operations OtherItemsIncludedInContinuingOperations	214423000	USD
CY2011	aiv	Partners Capital Account Effect Of Changes In Ownership For Consolidated PartnersCapitalAccountEffectOfChangesInOwnershipForConsolidated	22305000	USD
CY2013	aiv	Partners Capital Account Effect Of Changes In Ownership For Consolidated PartnersCapitalAccountEffectOfChangesInOwnershipForConsolidated	17170000	USD
CY2012	aiv	Partners Capital Account Effect Of Changes In Ownership For Consolidated PartnersCapitalAccountEffectOfChangesInOwnershipForConsolidated	50654000	USD
CY2013	aiv	Payments For Purchases Of Noncontrolling Interests PaymentsForPurchasesOfNoncontrollingInterests	17900000	USD
CY2013Q4	aiv	Percentage Of Income Tax On Income From Non Arms Length Transactions PercentageOfIncomeTaxOnIncomeFromNonArmsLengthTransactions	1
CY2013Q4	aiv	Period For Reclassification Of Earnings PeriodForReclassificationOfEarnings	P12M
CY2013	aiv	Period Of Time Over Which Low Income Housing Tax Credits Realized By Investors PeriodOfTimeOverWhichLowIncomeHousingTaxCreditsRealizedByInvestors	P10Y
CY2011	aiv	Preferred Stock Dividends And Other Adjustments Continuing Operations PreferredStockDividendsAndOtherAdjustmentsContinuingOperations	45852000	USD
CY2013	aiv	Preferred Stock Dividends And Other Adjustments Continuing Operations PreferredStockDividendsAndOtherAdjustmentsContinuingOperations	2804000	USD
CY2012	aiv	Preferred Stock Dividends And Other Adjustments Continuing Operations PreferredStockDividendsAndOtherAdjustmentsContinuingOperations	49888000	USD
CY2011	aiv	Prepayment Penalties Treated As Reduction Of Gain Upon Repayment Of Property Loans Collateralized By Properties Sold PrepaymentPenaltiesTreatedAsReductionOfGainUponRepaymentOfPropertyLoansCollateralizedByPropertiesSold	14900000	USD
CY2013	aiv	Prepayment Penalties Treated As Reduction Of Gain Upon Repayment Of Property Loans Collateralized By Properties Sold PrepaymentPenaltiesTreatedAsReductionOfGainUponRepaymentOfPropertyLoansCollateralizedByPropertiesSold	16500000	USD
CY2012	aiv	Prepayment Penalties Treated As Reduction Of Gain Upon Repayment Of Property Loans Collateralized By Properties Sold PrepaymentPenaltiesTreatedAsReductionOfGainUponRepaymentOfPropertyLoansCollateralizedByPropertiesSold	16500000	USD
CY2012	aiv	Proceeds From Sale Of Interests And Distributions From Unconsolidated Real Estate Partnerships ProceedsFromSaleOfInterestsAndDistributionsFromUnconsolidatedRealEstatePartnerships	31192000	USD
CY2013	aiv	Proceeds From Sale Of Interests And Distributions From Unconsolidated Real Estate Partnerships ProceedsFromSaleOfInterestsAndDistributionsFromUnconsolidatedRealEstatePartnerships	0	USD
CY2011	aiv	Proceeds From Sale Of Interests And Distributions From Unconsolidated Real Estate Partnerships ProceedsFromSaleOfInterestsAndDistributionsFromUnconsolidatedRealEstatePartnerships	17095000	USD
CY2013Q4	aiv	Range Of Remaining Compliance Periods For Tax Credit Syndication Arrangements RangeOfRemainingCompliancePeriodsForTaxCreditSyndicationArrangements	less than one year to 12 years
CY2012	aiv	Real Estate Accumulated Depreciation Reclassifications RealEstateAccumulatedDepreciationReclassifications	33394000	USD
CY2013	aiv	Real Estate Accumulated Depreciation Reclassifications RealEstateAccumulatedDepreciationReclassifications	0	USD
CY2011	aiv	Real Estate Accumulated Depreciation Reclassifications RealEstateAccumulatedDepreciationReclassifications	0	USD
CY2013Q4	aiv	Real Estate Net Related To Legally Sold Portfolio RealEstateNetRelatedToLegallySoldPortfolio	120175000	USD
CY2012Q4	aiv	Real Estate Net Related To Legally Sold Portfolio RealEstateNetRelatedToLegallySoldPortfolio	125065000	USD
CY2012	aiv	Real Estate Reclassification RealEstateReclassification	160420000	USD
CY2011	aiv	Real Estate Reclassification RealEstateReclassification	0	USD
CY2013	aiv	Real Estate Reclassification RealEstateReclassification	0	USD
CY2013	aiv	Redemption Of Operating Partnership Units In Exchange For Cash Or Shares Of Common Stock RedemptionOfOperatingPartnershipUnitsInExchangeForCashOrSharesOfCommonStock	3085000	USD
CY2011	aiv	Redemption Of Operating Partnership Units In Exchange For Cash Or Shares Of Common Stock RedemptionOfOperatingPartnershipUnitsInExchangeForCashOrSharesOfCommonStock	6059000	USD
CY2012	aiv	Redemption Of Operating Partnership Units In Exchange For Cash Or Shares Of Common Stock RedemptionOfOperatingPartnershipUnitsInExchangeForCashOrSharesOfCommonStock	11079000	USD
CY2013	aiv	Revenues Related To Legally Sold Portfolio RevenuesRelatedToLegallySoldPortfolio	23711000	USD
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000922864
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	146099061	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q4	aiv	Term Of Commitments To Purchase Goods Or Services Related To Operations Of Properties TermOfCommitmentsToPurchaseGoodsOrServicesRelatedToOperationsOfProperties	one year or less
CY2013Q4	aiv	Total Assets Related To Legally Sold Portfolio TotalAssetsRelatedToLegallySoldPortfolio	163849000	USD
CY2012Q4	aiv	Total Assets Related To Legally Sold Portfolio TotalAssetsRelatedToLegallySoldPortfolio	176756000	USD
CY2011	aiv	Total Current Federal Tax Expense Benefit TotalCurrentFederalTaxExpenseBenefit	-109000	USD
CY2012	aiv	Total Current Federal Tax Expense Benefit TotalCurrentFederalTaxExpenseBenefit	0	USD
CY2013	aiv	Total Current Federal Tax Expense Benefit TotalCurrentFederalTaxExpenseBenefit	0	USD
CY2012	aiv	Total Current Income Tax Expense Benefit TotalCurrentIncomeTaxExpenseBenefit	1047000	USD
CY2011	aiv	Total Current Income Tax Expense Benefit TotalCurrentIncomeTaxExpenseBenefit	495000	USD
CY2013	aiv	Total Current Income Tax Expense Benefit TotalCurrentIncomeTaxExpenseBenefit	63000	USD
CY2012	aiv	Total Current Stateand Local Tax Expense Benefit TotalCurrentStateandLocalTaxExpenseBenefit	1047000	USD
CY2013	aiv	Total Current Stateand Local Tax Expense Benefit TotalCurrentStateandLocalTaxExpenseBenefit	63000	USD
CY2011	aiv	Total Current Stateand Local Tax Expense Benefit TotalCurrentStateandLocalTaxExpenseBenefit	604000	USD
CY2011	aiv	Total Deferred Federal Income Tax Expense Benefit TotalDeferredFederalIncomeTaxExpenseBenefit	-143000	USD
CY2013	aiv	Total Deferred Federal Income Tax Expense Benefit TotalDeferredFederalIncomeTaxExpenseBenefit	7621000	USD
CY2012	aiv	Total Deferred Federal Income Tax Expense Benefit TotalDeferredFederalIncomeTaxExpenseBenefit	7116000	USD
CY2012	aiv	Total Deferred Income Tax Expense Benefit TotalDeferredIncomeTaxExpenseBenefit	7928000	USD
CY2013	aiv	Total Deferred Income Tax Expense Benefit TotalDeferredIncomeTaxExpenseBenefit	9306000	USD
CY2011	aiv	Total Deferred Income Tax Expense Benefit TotalDeferredIncomeTaxExpenseBenefit	-1046000	USD
CY2011	aiv	Total Deferred Stateand Local Income Tax Expense Benefit TotalDeferredStateandLocalIncomeTaxExpenseBenefit	-903000	USD
CY2012	aiv	Total Deferred Stateand Local Income Tax Expense Benefit TotalDeferredStateandLocalIncomeTaxExpenseBenefit	812000	USD
CY2013	aiv	Total Deferred Stateand Local Income Tax Expense Benefit TotalDeferredStateandLocalIncomeTaxExpenseBenefit	1685000	USD
CY2013Q4	aiv	Total Indebtedness Related To Legally Sold Portfolio TotalIndebtednessRelatedToLegallySoldPortfolio	106032000	USD
CY2012Q4	aiv	Total Indebtedness Related To Legally Sold Portfolio TotalIndebtednessRelatedToLegallySoldPortfolio	107562000	USD
CY2012Q4	aiv	Total Liabilites Related To Legally Sold Portfolio TotalLiabilitesRelatedToLegallySoldPortfolio	136984000	USD
CY2013Q4	aiv	Total Liabilites Related To Legally Sold Portfolio TotalLiabilitesRelatedToLegallySoldPortfolio	125295000	USD
CY2013	aiv	Typical Compliance Period Related To Low Income Housing Tax Credit Arrangements TypicalCompliancePeriodRelatedToLowIncomeHousingTaxCreditArrangements	P15Y
CY2011	aiv	Unrecaptured Gain Dividends Per Share Declared UnrecapturedGainDividendsPerShareDeclared	0.36
CY2012	aiv	Unrecaptured Gain Dividends Per Share Declared UnrecapturedGainDividendsPerShareDeclared	0.41
CY2013	aiv	Unrecaptured Gain Dividends Per Share Declared UnrecapturedGainDividendsPerShareDeclared	0.66
CY2013	aiv	Unrecaptured Gain Dividends Per Share Declared Percentage UnrecapturedGainDividendsPerShareDeclaredPercentage	0.682
CY2011	aiv	Unrecaptured Gain Dividends Per Share Declared Percentage UnrecapturedGainDividendsPerShareDeclaredPercentage	0.760
CY2012	aiv	Unrecaptured Gain Dividends Per Share Declared Percentage UnrecapturedGainDividendsPerShareDeclaredPercentage	0.534
CY2013	aiv	Write Off Of Fully Depreciated Assets WriteOffOfFullyDepreciatedAssets	91900000	USD
CY2011	aiv	Write Off Of Fully Depreciated Assets WriteOffOfFullyDepreciatedAssets	165900000	USD
CY2012	aiv	Write Off Of Fully Depreciated Assets WriteOffOfFullyDepreciatedAssets	38700000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013Q2	dei	Entity Public Float EntityPublicFloat	4300000000	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	APARTMENT INVESTMENT & MANAGEMENT CO
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0000922864-14-000008-index-headers.html	Edgar Link	pending
0000922864-14-000008-index.html	Edgar Link	pending
0000922864-14-000008.txt	Edgar Link	pending
0000922864-14-000008-xbrl.zip	Edgar Link	pending
a201310-k.htm	Edgar Link	pending
a201310-k_chartx43072.jpg	Edgar Link	pending
aiv-20131231.xml	Edgar Link	completed
aiv-20131231.xsd	Edgar Link	pending
aiv-20131231_cal.xml	Edgar Link	unprocessable
aiv-20131231_def.xml	Edgar Link	unprocessable
aiv-20131231_lab.xml	Edgar Link	unprocessable
aiv-20131231_pre.xml	Edgar Link	unprocessable
aiv-ex211_20131231.htm	Edgar Link	pending
aiv-ex231_20131231.htm	Edgar Link	pending
aiv-ex232_20131231.htm	Edgar Link	pending
aiv-ex311_20131231.htm	Edgar Link	pending
aiv-ex312_20131231.htm	Edgar Link	pending
aiv-ex313_20131231.htm	Edgar Link	pending
aiv-ex314_20131231.htm	Edgar Link	pending
aiv-ex321_20131231.htm	Edgar Link	pending
aiv-ex322_20131231.htm	Edgar Link	pending
aiv-ex323_20131231.htm	Edgar Link	pending
aiv-ex324_20131231.htm	Edgar Link	pending
aiv-ex991_20131231.htm	Edgar Link	pending
aiv-ex992_20131231.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$AIV
APARTMENT INVESTMENT & MANAGEMENT CO Stock $aiv

2013 Form 10-K Financial Statement

#000092286414000008 Filed on February 21, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AIV APARTMENT INVESTMENT & MANAGEMENT CO Stock $aiv

2013 Form 10-K Financial Statement

#000092286414000008 Filed on February 21, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AIV
APARTMENT INVESTMENT & MANAGEMENT CO Stock $aiv