$ALX
ALEXANDERS INC Stock $alx

$alx Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000000349923000005 Filed on February 13, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$52.94M	$53.05M	$205.8M
YoY Change	7.57%	6.82%	-0.16%
Cost Of Revenue	$25.55M	$24.41M	$90.73M
YoY Change	11.49%	2.56%	-5.78%
Gross Profit	$27.39M	$28.64M	$115.1M
YoY Change	4.15%	10.75%	4.77%
Gross Profit Margin	51.73%	53.98%	55.92%
Selling, General & Admin	$749.0K	$741.0K	$5.827M
YoY Change	723.08%	-42.38%	681.1%
% of Gross Profit	2.73%	2.59%	5.06%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$7.899M	$7.944M	$31.45M
YoY Change	1.77%	3.59%	-9.07%
% of Gross Profit	28.84%	27.74%	27.33%
Operating Expenses	$33.78M	$8.266M	$126.3M
YoY Change	11.26%	15.21%	-2.77%
Operating Profit	-$6.394M	$20.37M	-$11.26M
YoY Change	57.22%	9.04%	-43.97%
Interest Expense	-$7.934M	-$7.192M	-$21.83M
YoY Change	83.61%	75.16%	40.27%
% of Operating Profit		-35.31%
Other Income/Expense, Net
YoY Change
Pretax Income	$11.23M	$13.18M	$57.63M
YoY Change	-22.75%	-82.52%	-55.87%
Income Tax
% Of Pretax Income
Net Earnings	$11.23M	$13.18M	$57.63M
YoY Change	-22.75%	-83.05%	-56.64%
Net Earnings / Revenue	21.2%	24.84%	28.0%
Basic Earnings Per Share	$2.19		$11.24
Diluted Earnings Per Share	$2.19	$2.57	$11.24
COMMON SHARES
Basic Shares Outstanding	5.107M shares		5.126M shares
Diluted Shares Outstanding	5.127M shares		5.126M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$356.5M	$194.9M	$194.9M
YoY Change	-24.55%	-57.95%	-57.95%
Cash & Equivalents	$356.5M	$194.9M	$194.9M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$5.664M	$4.705M	$4.705M
Other Receivables	$125.4M	$127.5M	$127.5M
Total Short-Term Assets	$487.6M	$327.1M	$327.1M
YoY Change	-20.27%	-45.96%	-45.96%
LONG-TERM ASSETS
Property, Plant & Equipment	$669.4M	$688.3M	$706.8M
YoY Change	-3.49%	-1.51%	1.14%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$99.78M	$267.0M	$267.0M
YoY Change
Other Assets	$61.60M	$48.04M	$48.04M
YoY Change	21.75%	-6.32%	-6.32%
Total Long-Term Assets	$890.2M	$1.071B	$1.071B
YoY Change	11.66%	36.11%	36.11%
TOTAL ASSETS
Total Short-Term Assets	$487.6M	$327.1M	$327.1M
Total Long-Term Assets	$890.2M	$1.071B	$1.071B
Total Assets	$1.378B	$1.398B	$1.398B
YoY Change	-2.2%	0.42%	0.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$43.91M	$48.79M	$48.79M
YoY Change	12.34%	9.19%	9.19%
Accrued Expenses			$20.07M
YoY Change
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	$44.58M	$49.59M	$69.65M
YoY Change	8.31%	8.84%	52.88%
LONG-TERM LIABILITIES
Long-Term Debt	$1.091B	$1.091B	$1.091B
YoY Change	0.13%	0.13%	0.13%
Other Long-Term Liabilities	$20.73M	$20.64M	$574.0K
YoY Change	-5.03%	391.08%	-86.34%
Total Long-Term Liabilities	$1.112B	$1.112B	$1.092B
YoY Change	0.03%	1.63%	-0.2%
TOTAL LIABILITIES
Total Short-Term Liabilities	$44.58M	$49.59M	$69.65M
Total Long-Term Liabilities	$1.112B	$1.112B	$1.092B
Total Liabilities	$1.157B	$1.161B	$1.161B
YoY Change	0.33%	1.92%	1.92%
SHAREHOLDERS EQUITY
Retained Earnings	$160.4M	$172.2M
YoY Change	-19.13%	-16.74%
Common Stock	$5.173M	$5.173M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$221.0M	$236.5M	$236.5M
YoY Change
Total Liabilities & Shareholders Equity	$1.378B	$1.398B	$1.398B
YoY Change	-2.2%	0.42%	0.42%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$11.23M	$13.18M	$57.63M
YoY Change	-22.75%	-83.05%	-56.64%
Depreciation, Depletion And Amortization	$7.899M	$7.944M	$31.45M
YoY Change	1.77%	3.59%	-9.07%
Cash From Operating Activities	$20.74M	$26.35M	$102.5M
YoY Change	-35.57%	-4.36%	-13.44%
INVESTING ACTIVITIES
Capital Expenditures	$2.060M	$5.676M	$14.39M
YoY Change	-277.89%	-218.03%	-173.7%
Acquisitions
YoY Change
Other Investing Activities	$166.8M	-$67.47M	-$264.9M
YoY Change		-182.2%	-378.89%
Cash From Investing Activities	$164.8M	-$73.15M	-$279.3M
YoY Change	-14329.02%	-194.66%	-470.1%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net			$0.00
YoY Change			-100.0%
Cash From Financing Activities	-$23.11M	-23.11M	-$92.31M
YoY Change	0.22%	-74.63%	-42.41%
NET CHANGE
Cash From Operating Activities	$20.74M	26.35M	$102.5M
Cash From Investing Activities	$164.8M	-73.15M	-$279.3M
Cash From Financing Activities	-$23.11M	-23.11M	-$92.31M
Net Change In Cash	$162.4M	-69.91M	-$269.0M
YoY Change	1938.38%	-609.05%	-900.01%
FREE CASH FLOW
Cash From Operating Activities	$20.74M	$26.35M	$102.5M
Capital Expenditures	$2.060M	$5.676M	$14.39M
Free Cash Flow	$18.68M	$20.67M	$88.16M
YoY Change	-43.99%	-36.11%	-36.11%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	alx	Estimated Taxable Income Net EstimatedTaxableIncomeNet	64960000	usd
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000003499
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssets
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilities
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-06064
CY2022	dei	Entity Registrant Name EntityRegistrantName	ALEXANDERS INC
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	51-0100517
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	210 Route 4 East,
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Paramus,
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	NJ
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	07652
CY2022	dei	City Area Code CityAreaCode	(201)
CY2022	dei	Local Phone Number LocalPhoneNumber	587-8541
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $1 par value per share
CY2022	dei	Trading Symbol TradingSymbol	ALX
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	472173000	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	5107290	shares
CY2022	dei	Auditor Firm AuditorFirmId	34
CY2022	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2022	dei	Auditor Location AuditorLocation	New York, New York
CY2022Q4	us-gaap	Land Land	33050000	usd
CY2021Q4	us-gaap	Land Land	33050000	usd
CY2022Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	1029504000	usd
CY2021Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	1014525000	usd
CY2022Q4	us-gaap	Development In Process DevelopmentInProcess	22044000	usd
CY2021Q4	us-gaap	Development In Process DevelopmentInProcess	21851000	usd
CY2022Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	1084598000	usd
CY2021Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	1069426000	usd
CY2022Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	396268000	usd
CY2021Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	370557000	usd
CY2022Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	688330000	usd
CY2021Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	698869000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	194933000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	463539000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	19545000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	19966000	usd
CY2022Q4	us-gaap	Short Term Investments ShortTermInvestments	266963000	usd
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	0	usd
CY2022Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	4705000	usd
CY2021Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	6385000	usd
CY2022Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	127497000	usd
CY2021Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	135457000	usd
CY2022Q4	alx	Unamortized Leasing Fees To Related Party UnamortizedLeasingFeesToRelatedParty	22174000	usd
CY2021Q4	alx	Unamortized Leasing Fees To Related Party UnamortizedLeasingFeesToRelatedParty	23943000	usd
CY2022Q4	us-gaap	Deferred Costs Leasing Net DeferredCostsLeasingNet	28490000	usd
CY2021Q4	us-gaap	Deferred Costs Leasing Net DeferredCostsLeasingNet	31312000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	67313000	usd
CY2021Q4	us-gaap	Other Assets OtherAssets	36437000	usd
CY2022Q4	us-gaap	Assets Assets	1397776000	usd
CY2021Q4	us-gaap	Assets Assets	1391965000	usd
CY2022Q4	us-gaap	Notes Payable NotesPayable	1091051000	usd
CY2021Q4	us-gaap	Notes Payable NotesPayable	1089613000	usd
CY2022Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	801000	usd
CY2021Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	879000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	48785000	usd
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	44681000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	20640000	usd
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	4203000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	1161277000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	1139376000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	5173450	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	5173450	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	5107290	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	5107290	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	5173000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	5173000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	33865000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	33415000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	172243000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	206875000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	25586000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	7494000	usd
CY2022Q4	us-gaap	Stockholders Equity Before Treasury Stock StockholdersEquityBeforeTreasuryStock	236867000	usd
CY2021Q4	us-gaap	Stockholders Equity Before Treasury Stock StockholdersEquityBeforeTreasuryStock	252957000	usd
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	66160	shares
CY2021Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	66160	shares
CY2022Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	368000	usd
CY2021Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	368000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	236499000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	252589000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1397776000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1391965000	usd
CY2022	us-gaap	Revenues Revenues	205814000	usd
CY2021	us-gaap	Revenues Revenues	206148000	usd
CY2020	us-gaap	Revenues Revenues	199142000	usd
CY2022	us-gaap	Costs And Expenses Related Party CostsAndExpensesRelatedParty	6037000	usd
CY2021	us-gaap	Costs And Expenses Related Party CostsAndExpensesRelatedParty	5952000	usd
CY2022	us-gaap	Interest And Other Income InterestAndOtherIncome	6769000	usd
CY2020	us-gaap	Costs And Expenses Related Party CostsAndExpensesRelatedParty	5429000	usd
CY2022	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	90446000	usd
CY2021	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	91089000	usd
CY2020	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	88403000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	29797000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	32938000	usd
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	32357000	usd
CY2022	us-gaap	Related Party Transaction Selling General And Administrative Expenses From Transactions With Related Party RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty	2440000	usd
CY2021	us-gaap	Related Party Transaction Selling General And Administrative Expenses From Transactions With Related Party RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty	2380000	usd
CY2020	us-gaap	Related Party Transaction Selling General And Administrative Expenses From Transactions With Related Party RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty	2380000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6106000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	5924000	usd
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6307000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	126349000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	129951000	usd
CY2020	us-gaap	Operating Expenses OperatingExpenses	127067000	usd
CY2021	us-gaap	Interest And Other Income InterestAndOtherIncome	639000	usd
CY2020	us-gaap	Interest And Other Income InterestAndOtherIncome	2667000	usd
CY2022	us-gaap	Interest And Debt Expense InterestAndDebtExpense	28602000	usd
CY2021	us-gaap	Interest And Debt Expense InterestAndDebtExpense	19686000	usd
CY2020	us-gaap	Interest And Debt Expense InterestAndDebtExpense	24204000	usd
CY2022	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	0	usd
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	3482000	usd
CY2020	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-8599000	usd
CY2022	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	usd
CY2021	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	69950000	usd
CY2020	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	usd
CY2022	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	57632000	usd
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	130582000	usd
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	41939000	usd
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	usd
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2348000	usd
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	57632000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	132930000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41939000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	11.24
CY2022	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	11.24
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	25.48
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	25.48
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.19
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.19
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.46
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.46
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.24
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.24
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	25.94
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	25.94
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.19
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.19
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5126100	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5126100	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5123613	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5123613	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5120922	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5120922	shares
CY2022	us-gaap	Net Income Loss NetIncomeLoss	57632000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	132930000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41939000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	18092000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	8201000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-658000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	75724000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	141131000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41281000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	253515000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41939000	usd
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	18.00
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	92168000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-658000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	600000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	203228000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	132930000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	18.00
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	92220000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	8201000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	450000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	252589000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	57632000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	18.00
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	92264000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	18092000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	450000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	236499000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	57632000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	132930000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41939000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	31454000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	34592000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	35121000	usd
CY2022	us-gaap	Straight Line Rent StraightLineRent	-7960000	usd
CY2021	us-gaap	Straight Line Rent StraightLineRent	-9817000	usd
CY2020	us-gaap	Straight Line Rent StraightLineRent	-21102000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	4122000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	450000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	450000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	600000	usd
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2348000	usd
CY2022	alx	Gains Losses On Sales Of Investment Real Estate Including Discontinued Operations GainsLossesOnSalesOfInvestmentRealEstateIncludingDiscontinuedOperations	0	usd
CY2021	alx	Gains Losses On Sales Of Investment Real Estate Including Discontinued Operations GainsLossesOnSalesOfInvestmentRealEstateIncludingDiscontinuedOperations	72298000	usd
CY2020	alx	Gains Losses On Sales Of Investment Real Estate Including Discontinued Operations GainsLossesOnSalesOfInvestmentRealEstateIncludingDiscontinuedOperations	0	usd
CY2022	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	0	usd
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	3482000	usd
CY2020	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-8599000	usd
CY2022	us-gaap	Investment Income Dividend InvestmentIncomeDividend	0	usd
CY2021	us-gaap	Investment Income Dividend InvestmentIncomeDividend	0	usd
CY2020	us-gaap	Investment Income Dividend InvestmentIncomeDividend	214000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2928000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1680000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1731000	usd
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6146000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2782000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3099000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	28378000	usd
CY2022	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	40000	usd
CY2021	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-211000	usd
CY2020	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-402000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	3141000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	12501000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2361000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	338000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-664000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-638000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	102549000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	118465000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	78066000	usd
CY2022	alx	Payments For Capital Improvements And Construction In Process PaymentsForCapitalImprovementsAndConstructionInProcess	14386000	usd
CY2021	alx	Payments For Capital Improvements And Construction In Process PaymentsForCapitalImprovementsAndConstructionInProcess	19520000	usd
CY2020	alx	Payments For Capital Improvements And Construction In Process PaymentsForCapitalImprovementsAndConstructionInProcess	32460000	usd
CY2022	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	364238000	usd
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	usd
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	usd
CY2022	alx	Proceeds From Maturities Of Short Term Investments ProceedsFromMaturitiesOfShortTermInvestments	99358000	usd
CY2021	alx	Proceeds From Maturities Of Short Term Investments ProceedsFromMaturitiesOfShortTermInvestments	0	usd
CY2020	alx	Proceeds From Maturities Of Short Term Investments ProceedsFromMaturitiesOfShortTermInvestments	0	usd
CY2022	us-gaap	Proceeds From Sale Of Land Heldforinvestment ProceedsFromSaleOfLandHeldforinvestment	0	usd
CY2021	us-gaap	Proceeds From Sale Of Land Heldforinvestment ProceedsFromSaleOfLandHeldforinvestment	81871000	usd
CY2020	us-gaap	Proceeds From Sale Of Land Heldforinvestment ProceedsFromSaleOfLandHeldforinvestment	0	usd
CY2022	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	0	usd
CY2021	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	3600000	usd
CY2020	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	0	usd
CY2022	alx	Proceeds From Sale Of Marketable Securities ProceedsFromSaleOfMarketableSecurities	0	usd
CY2021	alx	Proceeds From Sale Of Marketable Securities ProceedsFromSaleOfMarketableSecurities	9506000	usd
CY2020	alx	Proceeds From Sale Of Marketable Securities ProceedsFromSaleOfMarketableSecurities	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-279266000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	75457000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-32460000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	92264000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	92220000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	92168000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	46000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	74000	usd
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7246000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	68000000	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	50000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	239708000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-92310000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-160294000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	90294000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-269027000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	33628000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	135900000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	483505000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	449877000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	313977000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	214478000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	483505000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	449877000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	463539000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	428710000	usd
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	298063000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	19966000	usd
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	21167000	usd
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	15914000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	483505000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	449877000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	313977000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	194933000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	463539000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	428710000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	19545000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	19966000	usd
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	21167000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	214478000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	483505000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	449877000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	25934000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	18568000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	22476000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	16099000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	usd
CY2022	alx	Non Cash Additions To Real Estate NonCashAdditionsToRealEstate	2254000	usd
CY2021	alx	Non Cash Additions To Real Estate NonCashAdditionsToRealEstate	1445000	usd
CY2020	alx	Non Cash Additions To Real Estate NonCashAdditionsToRealEstate	4955000	usd
CY2022	alx	Write Off Of Fully Amortized And Depreciated Assets WriteOffOfFullyAmortizedAndDepreciatedAssets	23000	usd
CY2021	alx	Write Off Of Fully Amortized And Depreciated Assets WriteOffOfFullyAmortizedAndDepreciatedAssets	5628000	usd
CY2020	alx	Write Off Of Fully Amortized And Depreciated Assets WriteOffOfFullyAmortizedAndDepreciatedAssets	876000	usd
CY2022	us-gaap	Nature Of Operations NatureOfOperations	ORGANIZATION<div style="text-align:justify;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Alexander’s, Inc. (NYSE: ALX) is a real estate investment trust (“REIT”), incorporated in Delaware, engaged in leasing, managing, developing and redeveloping its properties. All references to “we,” “us,” “our,” “Company” and “Alexander’s” refer to Alexander’s, Inc. and its consolidated subsidiaries. We are managed by, and our properties are leased and developed by, Vornado Realty Trust (“Vornado”) (NYSE: VNO).</span></div><div style="text-align:justify;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:justify;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have six properties in New York City consisting of:</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Operating properties</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">731 Lexington Avenue, a 1,079,000 square foot multi-use building, comprising the entire block bounded by Lexington Avenue, East 59</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">th</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Street, Third Avenue and East 58</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">th</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Street in Manhattan. The building contains 939,000 and 140,000 of net rentable square feet of office and retail space, respectively. Bloomberg L.P. (“Bloomberg”) occupies all of the office space. The Home Depot (83,000 square feet) is the principal retail tenant;</span></div><div style="text-align:justify"><span><br/></span></div><div style="padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Rego Park I, a 338,000 square foot shopping center, is located on Queens Boulevard and 63</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:120%;position:relative;top:-2.8pt;vertical-align:baseline">rd</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Road in Queens. The center is anchored by a 112,000 square foot IKEA, a 50,000 square foot Burlington, a 46,000 square foot Bed Bath & Beyond and a 36,000 square foot Marshalls. On December 3, 2022, IKEA closed its store at the property. IKEA remains obligated under its lease which expires in December 2030. The lease includes a right to terminate effective no earlier than March 2026, subject to payment of rent through the termination date and an additional termination payment equal to the lesser of $10,000,000 or the amount of rent due under the remaining term;</span></div><div style="padding-left:36pt;text-align:justify"><span><br/></span></div><div style="padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Rego Park II, a 615,000 square foot shopping center, is located adjacent to the Rego Park I shopping center in Queens. The center is anchored by a 145,000 square foot Costco and a 133,000 square foot Kohl’s, which has been subleased; </span></div><div style="text-align:justify"><span><br/></span></div><div style="padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">The Alexander apartment tower, located above our Rego Park II shopping center, contains 312 units aggregating 255,000 square feet; and</span></div><div style="text-align:justify"><span><br/></span></div><div style="padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Flushing, a 167,000 square foot building, located on Roosevelt Avenue and Main Street in Queens, that is sub-leased to New World Mall LLC. The property is ground leased through January 2027 with one 10-year extension option.</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Property to be developed</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Rego Park III, a 140,000 square foot land parcel adjacent to the Rego Park II shopping center in Queens, at the intersection of Junction Boulevard and the Horace Harding Service Road.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have determined that our properties have similar economic characteristics and meet the criteria that permit the properties to be aggregated into one reportable segment (the leasing, management, development and redeveloping of properties in New York City). Our chief operating decision-maker assesses and measures segment operating results based on a performance measure referred to as net operating income at the individual operating segment. Net operating income for each property represents net rental revenues less operating expenses.</span></div>
CY2022Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	6	property
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2022Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	688330000	usd
CY2021Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	698869000	usd
CY2022	alx	Cash And Cash Equivalent Maturity Maximum CashAndCashEquivalentMaturityMaximum	P3M
CY2021	alx	Estimated Taxable Income Net EstimatedTaxableIncomeNet	101184000	usd
CY2020	alx	Estimated Taxable Income Net EstimatedTaxableIncomeNet	81375000	usd
CY2022Q4	alx	Net Basis Difference Of Assets And Liabilities Between Tax Basis And Gaap Basis NetBasisDifferenceOfAssetsAndLiabilitiesBetweenTaxBasisAndGAAPBasis	137734000	usd
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	197230000	usd
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	198109000	usd
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	191416000	usd
CY2022	us-gaap	Revenues Revenues	205814000	usd
CY2021	us-gaap	Revenues Revenues	206148000	usd
CY2020	us-gaap	Revenues Revenues	199142000	usd
CY2022	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	135668000	usd
CY2021	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	129509000	usd
CY2020	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	120395000	usd
CY2022	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	61562000	usd
CY2021	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	68600000	usd
CY2020	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	71021000	usd
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	197230000	usd
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	198109000	usd
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	191416000	usd
CY2021Q4	alx	Number Of Shares Sold NumberOfSharesSold	564612	shares
CY2021Q4	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	9506000	usd
CY2022Q4	alx	Pledged Assets Seperately Reported Real Estate Pledged As Collateral At Carrying Value PledgedAssetsSeperatelyReportedRealEstatePledgedAsCollateralAtCarryingValue	614245000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	500000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	502544000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	94000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	29351000	usd
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7545000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	141156000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	142956000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	131631000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	128522000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	125138000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	317099000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	18497000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	20066000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	800000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	800000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	800000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	800000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2707000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	26160000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	32067000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	12001000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	20066000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	2161000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	746000	usd
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	746000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	800000	usd
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	800000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	800000	usd
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	900000	usd
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2022	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	57632000	usd
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	130582000	usd
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	41939000	usd
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	usd
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2348000	usd
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	57632000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	132930000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41939000	usd
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5126100	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5126100	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5123613	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5123613	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5120922	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5120922	shares
CY2022	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	11.24
CY2022	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	11.24
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	25.48
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	25.48
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.19
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.19
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2022	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.46
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.46
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.24
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.24
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	25.94
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	25.94
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.19
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.19
CY2022Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	1096544000	usd
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	19985000	usd
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	24435000	usd
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	1040178000	usd
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	33050000	usd
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	1029504000	usd
CY2022Q4	alx	Real Estate And Accumulated Depreciation Carrying Amount Of Development And Construction In Progress RealEstateAndAccumulatedDepreciationCarryingAmountOfDevelopmentAndConstructionInProgress	22044000	usd
CY2022Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1084598000	usd
CY2022Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	396268000	usd
CY2022Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	5493000	usd
CY2022Q4	alx	Net Basis Difference Of Assets And Liabilities Between Tax Basis And Gaap Basis NetBasisDifferenceOfAssetsAndLiabilitiesBetweenTaxBasisAndGAAPBasis	137734000	usd
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1069426000	usd
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1071043000	usd
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1041342000	usd
CY2022	us-gaap	Real Estate Accumulated Depreciation Period Increase Decrease RealEstateAccumulatedDepreciationPeriodIncreaseDecrease	1084621000	usd
CY2021	us-gaap	Real Estate Accumulated Depreciation Period Increase Decrease RealEstateAccumulatedDepreciationPeriodIncreaseDecrease	1075054000	usd
CY2020	us-gaap	Real Estate Accumulated Depreciation Period Increase Decrease RealEstateAccumulatedDepreciationPeriodIncreaseDecrease	1071919000	usd
CY2022	alx	Sec Schedule1228 Real Estate Companies Investment In Real Estate Fully Depreciated Assets SECSchedule1228RealEstateCompaniesInvestmentInRealEstateFullyDepreciatedAssets	23000	usd
CY2021	alx	Sec Schedule1228 Real Estate Companies Investment In Real Estate Fully Depreciated Assets SECSchedule1228RealEstateCompaniesInvestmentInRealEstateFullyDepreciatedAssets	5628000	usd
CY2020	alx	Sec Schedule1228 Real Estate Companies Investment In Real Estate Fully Depreciated Assets SECSchedule1228RealEstateCompaniesInvestmentInRealEstateFullyDepreciatedAssets	876000	usd
CY2022Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1084598000	usd
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1069426000	usd
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1071043000	usd
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	370557000	usd
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	350122000	usd
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	324499000	usd
CY2022	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	25734000	usd
CY2021	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	26063000	usd
CY2020	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	26499000	usd
CY2022Q4	alx	Real Estate Before Real Estate Sold And Written Off RealEstateBeforeRealEstateSoldAndWrittenOff	396291000	usd
CY2021Q4	alx	Real Estate Before Real Estate Sold And Written Off RealEstateBeforeRealEstateSoldAndWrittenOff	376185000	usd
CY2020Q4	alx	Real Estate Before Real Estate Sold And Written Off RealEstateBeforeRealEstateSoldAndWrittenOff	350998000	usd
CY2022	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	23000	usd
CY2021	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	5628000	usd
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	876000	usd
CY2022Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	396268000	usd
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	370557000	usd
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	350122000	usd

Files In Submission

Name	View Source	Status
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$ALX
ALEXANDERS INC Stock $alx

2023 Q1 Form 10-K Financial Statement

#000000349923000005 Filed on February 13, 2023

Income Statement

Balance Sheet

Cashflow Statement

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Files In Submission

$ALX ALEXANDERS INC Stock $alx

2023 Q1 Form 10-K Financial Statement

#000000349923000005 Filed on February 13, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALX
ALEXANDERS INC Stock $alx