$ALEX
Alexander & Baldwin, Inc. Stock $alex

$alex Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000154565422000008 Filed on February 25, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$124.7M	$379.3M	$72.80M
YoY Change	71.29%	24.24%	-32.34%
Cost Of Revenue	$75.50M	$254.1M	$54.50M
YoY Change	38.53%	8.82%	-32.63%
Gross Profit	$49.20M	$125.2M	$18.30M
YoY Change	168.85%	74.37%	-31.46%
Gross Profit Margin	39.45%	33.01%	25.14%
Selling, General & Admin	$14.70M	$51.90M	$11.60M
YoY Change	26.72%	12.58%	-15.94%
% of Gross Profit	29.88%	41.45%	63.39%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$12.70M	$50.40M	$12.80M
YoY Change	-0.78%	-5.44%	-7.91%
% of Gross Profit	25.81%	40.26%	69.95%
Operating Expenses	$14.70M	$51.90M	$11.60M
YoY Change	26.72%	12.58%	-15.94%
Operating Profit	$34.50M	$50.20M	$6.700M
YoY Change	414.93%	69.02%	-62.78%
Interest Expense	-$600.0K	$26.30M	-$6.300M
YoY Change	-90.48%	-13.2%	8.62%
% of Operating Profit	-1.74%	52.39%	-94.03%
Other Income/Expense, Net	-$800.0K	$400.0K	$200.0K
YoY Change	-500.0%	-66.67%	-108.7%
Pretax Income	$6.700M	$36.90M	$700.0K
YoY Change	857.14%	558.93%	-85.42%
Income Tax	-$100.0K	$0.00	-$400.0K
% Of Pretax Income	-1.49%	0.0%	-57.14%
Net Earnings	$6.300M	$35.40M	$1.100M
YoY Change	472.73%	532.14%	-78.85%
Net Earnings / Revenue	5.05%	9.33%	1.51%
Basic Earnings Per Share	$0.08	$0.48
Diluted Earnings Per Share	$86.78K	$0.48	$15.19K
COMMON SHARES
Basic Shares Outstanding	72.50M shares	72.50M shares
Diluted Shares Outstanding	72.70M shares	72.60M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$70.00M	$70.00M	$57.20M
YoY Change	22.38%	22.38%	276.32%
Cash & Equivalents	$70.00M	$70.00M	$57.20M
Short-Term Investments
Other Short-Term Assets	$1.000M	$1.000M	$200.0K
YoY Change	400.0%	400.0%	0.0%
Inventory	$20.30M	$20.30M	$18.40M
Prepaid Expenses
Receivables	$28.90M	$28.90M	$43.50M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$119.2M	$119.2M	$119.1M
YoY Change	0.08%	0.08%	21.65%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.408B	$1.637B	$1.395B
YoY Change	0.89%	-8.89%	-1.23%
Goodwill	$8.700M		$10.50M
YoY Change	-17.14%		-31.82%
Intangibles
YoY Change
Long-Term Investments	$39.30M		$169.6M
YoY Change	-76.83%		1.19%
Other Assets	$103.6M	$94.90M	$95.80M
YoY Change	8.14%	10.86%	-1.54%
Total Long-Term Assets	$1.761B	$1.761B	$1.917B
YoY Change	-8.15%	-8.15%	-3.5%
TOTAL ASSETS
Total Short-Term Assets	$119.2M	$119.2M	$119.1M
Total Long-Term Assets	$1.761B	$1.761B	$1.917B
Total Assets	$1.880B	$1.880B	$2.036B
YoY Change	-7.67%	-7.67%	-2.32%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$9.900M	$9.900M	$9.800M
YoY Change	1.02%	1.02%	-44.94%
Accrued Expenses
YoY Change
Deferred Revenue	$6.800M		$8.500M
YoY Change	-20.0%		7.59%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$9.900M	$9.900M	$9.800M
YoY Change	1.02%	1.02%	-70.48%
LONG-TERM LIABILITIES
Long-Term Debt	$532.7M	$532.7M	$687.1M
YoY Change	-22.47%	-22.47%	-2.48%
Other Long-Term Liabilities	$263.7M	$263.7M	$236.5M
YoY Change	11.5%	11.5%	11.82%
Total Long-Term Liabilities	$796.4M	$796.4M	$923.6M
YoY Change	-13.77%	-13.77%	0.82%
TOTAL LIABILITIES
Total Short-Term Liabilities	$9.900M	$9.900M	$9.800M
Total Long-Term Liabilities	$796.4M	$796.4M	$923.6M
Total Liabilities	$806.3M	$813.2M	$933.4M
YoY Change	-13.62%	-13.48%	-1.67%
SHAREHOLDERS EQUITY
Retained Earnings	-$663.2M		-$649.4M
YoY Change	2.13%		3.7%
Common Stock	$1.811B		$1.806B
YoY Change	0.28%		0.3%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.067B	$1.067B	$1.096B
YoY Change
Total Liabilities & Shareholders Equity	$1.880B	$1.880B	$2.036B
YoY Change	-7.67%	-7.67%	-2.32%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$6.300M	$35.40M	$1.100M
YoY Change	472.73%	532.14%	-78.85%
Depreciation, Depletion And Amortization	$12.70M	$50.40M	$12.80M
YoY Change	-0.78%	-5.44%	-7.91%
Cash From Operating Activities	$57.00M	$124.2M	$25.90M
YoY Change	120.08%	96.83%	-51.68%
INVESTING ACTIVITIES
Capital Expenditures	-$27.40M	-$53.50M	-$7.400M
YoY Change	270.27%	113.15%	51.02%
Acquisitions
YoY Change
Other Investing Activities	$110.0M	$150.0M	-$1.100M
YoY Change	-10100.0%	304.31%	-139.29%
Cash From Investing Activities	$82.60M	$96.50M	-$8.500M
YoY Change	-1071.76%	704.17%	304.76%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$290.2M
YoY Change		58.58%
Cash From Financing Activities	-95.30M	-$207.1M	-77.30M
YoY Change	23.29%	525.68%	77.7%
NET CHANGE
Cash From Operating Activities	57.00M	$124.2M	25.90M
Cash From Investing Activities	82.60M	$96.50M	-8.500M
Cash From Financing Activities	-95.30M	-$207.1M	-77.30M
Net Change In Cash	44.30M	$13.60M	-59.90M
YoY Change	-173.96%	-67.62%	-848.75%
FREE CASH FLOW
Cash From Operating Activities	$57.00M	$124.2M	$25.90M
Capital Expenditures	-$27.40M	-$53.50M	-$7.400M
Free Cash Flow	$84.40M	$177.7M	$33.30M
YoY Change	153.45%	101.47%	-43.08%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001545654
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentOtherNet
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CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-35492
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Entity Registrant Name EntityRegistrantName	Alexander & Baldwin, Inc.
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Auditor Location AuditorLocation	Honolulu, Hawai‘i
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	HI
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	45-4849780
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	822 Bishop Street
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Post Office Box 3440
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Honolulu
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	HI
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	96801
CY2021	dei	City Area Code CityAreaCode	808
CY2021	dei	Local Phone Number LocalPhoneNumber	525-6611
CY2021	dei	Security12b Title Security12bTitle	Common Stock, without par value
CY2021	dei	Trading Symbol TradingSymbol	ALEX
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Auditor Firm AuditorFirmId	34
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CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2021	dei	Auditor Name AuditorName	Deloitte & Touche LLP
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	35400000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	5600000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-36400000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.50
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.09
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.49
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.51
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.50
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.09
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.49
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.51
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72500000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72300000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72200000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72600000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72400000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72200000	shares
CY2021	alex	Income Loss From Continuing Operations Available To Stockholders IncomeLossFromContinuingOperationsAvailableToStockholders	36200000	USD
CY2020	alex	Income Loss From Continuing Operations Available To Stockholders IncomeLossFromContinuingOperationsAvailableToStockholders	6300000	USD
CY2019	alex	Income Loss From Continuing Operations Available To Stockholders IncomeLossFromContinuingOperationsAvailableToStockholders	-35100000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1100000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-800000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1500000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	35100000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5500000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-36600000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	35800000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	5200000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-38400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2300000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-6900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-4000000.0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1600000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	100000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-27400000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-7700000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	5300000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2800000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2500000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-4000000.0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	100000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-700000	USD
CY2021	alex	Other Comprehensive Income Loss Defined Benefit Plan Curtailment Gain Loss Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanCurtailmentGainLossBeforeTax	0	USD
CY2020	alex	Other Comprehensive Income Loss Defined Benefit Plan Curtailment Gain Loss Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanCurtailmentGainLossBeforeTax	0	USD
CY2019	alex	Other Comprehensive Income Loss Defined Benefit Plan Curtailment Gain Loss Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanCurtailmentGainLossBeforeTax	-1400000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11200000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3100000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	15100000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-6000000.0	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-35300000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	400000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-400000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2000000.0	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14700000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-5600000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-33300000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	35800000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	5200000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-38400000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	50400000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	53300000	USD
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-4700000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-8800000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	50500000	USD
CY2021	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	3000000.0	USD
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	9500000	USD
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	2600000	USD
CY2021	alex	Asset Impairment Charges And Equity Method Investment Other Than Temporary Impairment AssetImpairmentChargesAndEquityMethodInvestmentOtherThanTemporaryImpairment	29000000.0	USD
CY2020	alex	Asset Impairment Charges And Equity Method Investment Other Than Temporary Impairment AssetImpairmentChargesAndEquityMethodInvestmentOtherThanTemporaryImpairment	5600000	USD
CY2019	alex	Asset Impairment Charges And Equity Method Investment Other Than Temporary Impairment AssetImpairmentChargesAndEquityMethodInvestmentOtherThanTemporaryImpairment	49700000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5900000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	5800000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	5400000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	8600000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	4800000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	1400000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-8500000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1900000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2100000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5700000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1300000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-13000000.0	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-28500000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-8700000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3600000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-56800000	USD
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-3000000.0	USD
CY2020	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	2700000	USD
CY2019	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	4600000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1900000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-6200000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-12900000	USD
CY2021	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	3000000.0	USD
CY2020	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-16500000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	3200000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	124200000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	157600000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	63100000	USD
CY2021	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	16900000	USD
CY2020	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	218400000	USD
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	36600000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	25100000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	36700000	USD
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	3200000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	27100000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	4400000	USD
CY2021	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	2700000	USD
CY2020	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	1000000.0	USD
CY2019	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	3300000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	149500000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	11000000.0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	13600000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	96500000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	12000000.0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-240400000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	131000000.0	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	173000000.0	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	125900000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	290200000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	183000000.0	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	203900000	USD
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	0	USD
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-8700000	USD
CY2019	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-300000	USD
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	300000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	46600000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	13800000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71000000.0	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	50000000.0	USD
CY2021	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	1300000	USD
CY2020	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	600000	USD
CY2019	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	1000000.0	USD
CY2021	alex	Payments For Deferred Acquisition Holdback PaymentsForDeferredAcquisitionHoldback	0	USD
CY2020	alex	Payments For Deferred Acquisition Holdback PaymentsForDeferredAcquisitionHoldback	0	USD
CY2019	alex	Payments For Deferred Acquisition Holdback PaymentsForDeferredAcquisitionHoldback	7100000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-207100000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-33100000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-136700000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	13600000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	42000000.0	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-219500000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	57400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	15400000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	234900000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	57400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	15400000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	25400000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	29000000.0	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	32500000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-500000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-500000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-25800000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1600000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2900000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4400000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	31000000.0	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5500000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	400000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	100000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	900000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3400000	USD
CY2021	us-gaap	Dividends Dividends	13400000	USD
CY2020	us-gaap	Dividends Dividends	10900000	USD
CY2019	us-gaap	Dividends Dividends	0	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	57200000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	15200000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	11400000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	200000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	200000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	223500000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	57400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	15400000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	234900000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70000000.0	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	57200000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	15200000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1000000.0	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	200000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	200000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71000000.0	USD
CY2019	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	-38500000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	57400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	15400000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1208300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3100000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.69
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	50000000.0	USD
CY2019	alex	Redeemable Noncontrolling Interest Equity Adjustments To Redemption Value RedeemableNoncontrollingInterestEquityAdjustmentsToRedemptionValue	-1400000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5400000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1000000.0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1128700000	USD
CY2020	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	5000000.0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11200000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.34
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	24700000	USD
CY2020	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	2900000	USD
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	500000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5900000	USD
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	900000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1066600000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5800000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1096100000	USD
CY2021	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	35400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-20700000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.67
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	49200000	USD
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2021Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.50
CY2021Q4	alex	Gross Rentable Area GrossRentableArea	3900000	sqft
CY2021Q4	us-gaap	Land Subject To Ground Leases LandSubjectToGroundLeases	143.4	acre
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported. Estimates and assumptions are used for, but not limited to: (i) asset impairments, including intangible assets and goodwill, (ii) litigation and contingencies, (iii) revenue recognition for long-term real estate developments and construction contracts, (iv) pension and postretirement estimates, and (v) income taxes. Future results could be materially affected if actual results differ from these estimates and assumptions.</span>
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Customer Concentration: A significant portion of Materials & Construction revenue and accounts receivable is generated directly and indirectly from projects administered by the City and County of Honolulu and from the State of Hawai‘i. Reductions in funding of infrastructure projects by these government agencies could reduce revenue and profits from the M&C segment.
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Segment Reclassifications: Certain amounts presented in the prior year have been reclassified to conform to the current year presentation (e.g., captions previously presented in the prior years that, in the currently presented periods, are less than five percent of total assets or total liabilities were combined in the current year consolidated balance sheets). The Company continually monitors its reportable segments for changes in facts and circumstances to determine whether changes in the identification or aggregation of operating segments are necessary. In the first quarter of 2021, the Company updated its reportable segments. Consequently, the segment disclosures in this filing have been recast to reflect these changes and therefore differ from prior year quarterly filings to conform to the current year presentation resulting from the reorganization of a component of the Company historically included in the results of Land Operations that is now included in the results of Materials & Construction. Refer to Note 22 for additional information.
CY2021	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	3000000.0	USD
CY2021	us-gaap	Revenue Recognition Leases RevenueRecognitionLeases	<div style="margin-bottom:10pt;text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Revenue Recognition and Leases - The Company as a Lessor: </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Sources of revenue for the Company primarily include commercial property rentals, sales of real estate, real estate development projects, material sales and paving construction projects. The Company generates revenue from its three distinct business segments:</span></div><div style="margin-bottom:10pt;text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Commercial Real Estate:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The Commercial Real Estate segment</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;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%">owns, operates, leases, and manages a portfolio of retail, office, and industrial properties in Hawai‘i; it also leases urban land in Hawai‘i to third-party lessees. Commercial Real Estate revenue is recognized under lease accounting guidance with the Company as lessor.</span></div>
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2020	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	2600000	USD
CY2019	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	3100000	USD
CY2021	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	1000000.0	USD
CY2020	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	1700000	USD
CY2019	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	3000000.0	USD
CY2021	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2020	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2019	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	2600000	USD
CY2021	us-gaap	Gain Loss On Sale Of Interest In Projects GainLossOnSaleOfInterestInProjects	0	USD
CY2020	us-gaap	Gain Loss On Sale Of Interest In Projects GainLossOnSaleOfInterestInProjects	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Interest In Projects GainLossOnSaleOfInterestInProjects	-100000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	400000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1200000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	800000	USD
CY2021	alex	Interest Income And Other Interest Income Expense Net InterestIncomeAndOtherInterestIncomeExpenseNet	-1600000	USD
CY2020	alex	Interest Income And Other Interest Income Expense Net InterestIncomeAndOtherInterestIncomeExpenseNet	300000	USD
CY2019	alex	Interest Income And Other Interest Income Expense Net InterestIncomeAndOtherInterestIncomeExpenseNet	3200000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1588200000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1549700000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	180500000	USD
CY2021	us-gaap	Interest Costs Incurred InterestCostsIncurred	26600000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	154400000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1407700000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1395300000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	125500000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	188300000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	42000000.0	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	77500000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	83500000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	110800000	USD
CY2020	us-gaap	Interest Costs Incurred InterestCostsIncurred	30600000	USD
CY2019	us-gaap	Interest Costs Incurred InterestCostsIncurred	34100000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	300000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	300000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1000000	USD
CY2021	us-gaap	Depreciation Depreciation	38200000	USD
CY2020	us-gaap	Depreciation Depreciation	38800000	USD
CY2021Q4	us-gaap	Other Finite Lived Intangible Assets Gross OtherFiniteLivedIntangibleAssetsGross	21100000	USD
CY2020Q4	us-gaap	Other Finite Lived Intangible Assets Gross OtherFiniteLivedIntangibleAssetsGross	20400000	USD
CY2019	us-gaap	Depreciation Depreciation	35600000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	51600000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	61900000	USD
CY2021Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	8700000	USD
CY2020Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	10200000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12200000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14500000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12500000	USD
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	39300000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5500000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3900000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	8100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	5900000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	169600000	USD
CY2021Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	7500000	USD
CY2020Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	10600000	USD
CY2021	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	148600000	USD
CY2020	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	6100000	USD
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	12400000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17500000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5900000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	10500000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5300000	USD
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	8900000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1100000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	3900000	USD
CY2021Q4	alex	Financing Receivables Number Of Assets FinancingReceivablesNumberOfAssets	2	asset
CY2021Q4	us-gaap	Inventory Net InventoryNet	20300000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	18400000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	8700000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	49700000	USD
CY2020Q4	us-gaap	Goodwill Gross GoodwillGross	95200000	USD
CY2020Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	84700000	USD
CY2019Q4	us-gaap	Goodwill Gross GoodwillGross	102300000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	86900000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	15400000	USD
CY2020	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	7100000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2200000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	10500000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1800000	USD
CY2021Q4	us-gaap	Goodwill Gross GoodwillGross	95200000	USD
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	86500000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	8700000	USD
CY2021Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1800000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	26100000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	5600000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	157000000.0	USD
CY2021	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	2900000	USD
CY2021	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	2900000	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	532900000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	687300000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	0	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	0	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	200000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	200000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	532700000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	687100000	USD
CY2021Q4	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	345900000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	30100000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	34600000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	90200000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	68900000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	152100000	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	532900000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	200000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	532700000	USD
CY2021	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain	300000	USD
CY2020	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain	200000	USD
CY2021	us-gaap	Revenues Revenues	379300000	USD
CY2020	us-gaap	Revenues Revenues	305300000	USD
CY2019	us-gaap	Revenues Revenues	435200000	USD
CY2021Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	25100000	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	39500000	USD
CY2021Q4	us-gaap	Contract With Customer Receivable Before Allowance For Credit Loss ContractWithCustomerReceivableBeforeAllowanceForCreditLoss	5100000	USD
CY2020Q4	us-gaap	Contract With Customer Receivable Before Allowance For Credit Loss ContractWithCustomerReceivableBeforeAllowanceForCreditLoss	7300000	USD
CY2021Q4	alex	Account Receivable And Contract Receivable Retainage Allowance For Credit Loss AccountReceivableAndContractReceivableRetainageAllowanceForCreditLoss	1300000	USD
CY2020Q4	alex	Account Receivable And Contract Receivable Retainage Allowance For Credit Loss AccountReceivableAndContractReceivableRetainageAllowanceForCreditLoss	3300000	USD
CY2021Q4	alex	Account Receivable Net And Contract Receivable Retainage AccountReceivableNetAndContractReceivableRetainage	28900000	USD
CY2020Q4	alex	Account Receivable Net And Contract Receivable Retainage AccountReceivableNetAndContractReceivableRetainage	43500000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	10400000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	7400000	USD
CY2020Q4	alex	Long Term Contracts Estimated Earnings LongTermContractsEstimatedEarnings	41100000	USD
CY2021Q4	us-gaap	Contracts Receivable Claims And Uncertain Amounts ContractsReceivableClaimsAndUncertainAmounts	381200000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	2300000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	6800000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	8500000	USD
CY2021Q4	alex	Disposal Group Including Discontinued Operations Contingent Liability DisposalGroupIncludingDiscontinuedOperationsContingentLiability	62000000.0	USD
CY2020Q4	alex	Disposal Group Including Discontinued Operations Contingent Liability DisposalGroupIncludingDiscontinuedOperationsContingentLiability	62000000.0	USD
CY2021Q4	alex	Contract With Customer Other Noncurrent Liability ContractWithCustomerOtherNoncurrentLiability	6500000	USD
CY2020Q4	alex	Contract With Customer Other Noncurrent Liability ContractWithCustomerOtherNoncurrentLiability	4900000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	8100000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	140500000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	120800000	USD
CY2021Q4	alex	Costs Incurred On Uncompleted Contracts CostsIncurredOnUncompletedContracts	346200000	USD
CY2020Q4	alex	Costs Incurred On Uncompleted Contracts CostsIncurredOnUncompletedContracts	389800000	USD
CY2021Q4	alex	Long Term Contracts Estimated Earnings LongTermContractsEstimatedEarnings	35000000.0	USD
CY2020Q4	us-gaap	Contracts Receivable Claims And Uncertain Amounts ContractsReceivableClaimsAndUncertainAmounts	430900000	USD
CY2021Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	377600000	USD
CY2020Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	437100000	USD
CY2021Q4	alex	Unbilled Contracts Receivable Liability UnbilledContractsReceivableLiability	3600000	USD
CY2020Q4	alex	Unbilled Contracts Receivable Liability UnbilledContractsReceivableLiability	-6200000	USD
CY2020	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	15400000	USD
CY2020	alex	Lessor Operating Lease Allowance For Doubtful Accounts LessorOperatingLeaseAllowanceForDoubtfulAccounts	-3600000	USD
CY2021	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-1200000	USD
CY2021	alex	Lessor Operating Lease Allowance For Doubtful Accounts LessorOperatingLeaseAllowanceForDoubtfulAccounts	1700000	USD
CY2021	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-1200000	USD
CY2020	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	15400000	USD
CY2021	alex	Lessor Operating Lease Allowance For Doubtful Accounts LessorOperatingLeaseAllowanceForDoubtfulAccounts	1700000	USD
CY2020	alex	Lessor Operating Lease Allowance For Doubtful Accounts LessorOperatingLeaseAllowanceForDoubtfulAccounts	-3600000	USD
CY2021	alex	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price Including Provision For Allowance For Doubtful Accounts ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPriceIncludingProvisionForAllowanceForDoubtfulAccounts	-2900000	USD
CY2020	alex	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price Including Provision For Allowance For Doubtful Accounts ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPriceIncludingProvisionForAllowanceForDoubtfulAccounts	19000000.0	USD
CY2021	alex	Lessor Operating Lease Other Relief Modifications And Adjustments LessorOperatingLeaseOtherReliefModificationsAndAdjustments	7500000	USD
CY2020	alex	Lessor Operating Lease Other Relief Modifications And Adjustments LessorOperatingLeaseOtherReliefModificationsAndAdjustments	6400000	USD
CY2021	alex	Revenue From Contract With Customer Adjustments Assessments And Provisions RevenueFromContractWithCustomerAdjustmentsAssessmentsAndProvisions	4600000	USD
CY2020	alex	Revenue From Contract With Customer Adjustments Assessments And Provisions RevenueFromContractWithCustomerAdjustmentsAssessmentsAndProvisions	25400000	USD
CY2021	alex	Revenue From Contract With Customer Increase Decrease Adjustments To Billed Accounts Receivable RevenueFromContractWithCustomerIncreaseDecreaseAdjustmentsToBilledAccountsReceivable	4500000	USD
CY2020	alex	Revenue From Contract With Customer Increase Decrease Adjustments To Billed Accounts Receivable RevenueFromContractWithCustomerIncreaseDecreaseAdjustmentsToBilledAccountsReceivable	20600000	USD
CY2021	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	123600000	USD
CY2020	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	113700000	USD
CY2021	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	56000000.0	USD
CY2020	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	39300000	USD
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	179600000	USD
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	153000000.0	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1200000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	117500000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	107900000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	96000000.0	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	81500000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	67100000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	477500000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	947500000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	4800000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	4600000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	4600000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1300000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	100000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	100000	USD
CY2021	us-gaap	Lease Cost LeaseCost	6200000	USD
CY2020	us-gaap	Lease Cost LeaseCost	5900000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	900000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	600000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	800000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	600000	USD
CY2021	us-gaap	Sublease Income SubleaseIncome	300000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	300000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	4800000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	4600000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	100000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	100000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1300000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1200000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y1M6D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y1M6D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y10M24D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.044
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.044
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.030
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.032
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4800000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1000000.0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3700000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	800000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3000000.0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	200000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1500000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1400000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	12000000.0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	26400000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	2000000.0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7000000.0	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	100000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	19400000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1900000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	3500000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	4200000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1900000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	3200000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5900000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5800000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5400000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	5900000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	5800000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	5400000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1400000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3500000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2600000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	600000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	500000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2600000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	5400000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	3000000.0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	4500000	USD
CY2021	alex	Defined Benefit Plan Actual Return On Plan Assets Percentage DefinedBenefitPlanActualReturnOnPlanAssetsPercentage	-0.028
CY2020	alex	Defined Benefit Plan Actual Return On Plan Assets Percentage DefinedBenefitPlanActualReturnOnPlanAssetsPercentage	0.127
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	229200000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	1300000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	700000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	2600000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	700000	USD
CY2021	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	3900000	USD
CY2020	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	4000000.0	USD
CY2019	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	5600000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	3100000	USD
CY2021	us-gaap	Multiemployer Plan Pension Significant Plan Number MultiemployerPlanPensionSignificantPlanNumber	001
CY2021	us-gaap	Multiemployer Plan Pension Significant Plan Number MultiemployerPlanPensionSignificantPlanNumber	001
CY2021	us-gaap	Multiemployer Plan Pension Significant Plan Number MultiemployerPlanPensionSignificantPlanNumber	001
CY2021	us-gaap	Multiemployer Plan Pension Significant Plan Number MultiemployerPlanPensionSignificantPlanNumber	001
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	100000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-100000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1600000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-100000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-300000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-400000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-400000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-2000000.0	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
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CY2020	alex	Income Tax Expense Benefit Net Of Reit Conversion IncomeTaxExpenseBenefitNetOfREITConversion	-400000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	USD
CY2019	alex	Income Tax Expense Benefit Net Of Reit Conversion IncomeTaxExpenseBenefitNetOfREITConversion	-2000000.0	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7800000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1200000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-8200000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-700000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1100000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-5100000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1700000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	3400000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	8300000	USD
CY2021	alex	Effective Income Tax Rate Reconciliation Reit Rate Differential EffectiveIncomeTaxRateReconciliationREITRateDifferential	9000000.0	USD
CY2020	alex	Effective Income Tax Rate Reconciliation Reit Rate Differential EffectiveIncomeTaxRateReconciliationREITRateDifferential	4700000	USD
CY2019	alex	Effective Income Tax Rate Reconciliation Reit Rate Differential EffectiveIncomeTaxRateReconciliationREITRateDifferential	7900000	USD
CY2021	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	0	USD
CY2020	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	0	USD
CY2019	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-1100000	USD
CY2021	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	100000	USD
CY2020	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	-100000	USD
CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	-500000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	500000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	12400000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-200000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	700000	USD
CY2021Q4	alex	Deferred Tax Assets Capitalized Development Costs DeferredTaxAssetsCapitalizedDevelopmentCosts	1600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	15700000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-900000	USD
CY2021	alex	Income Tax Expense Benefit Net Of Reit Conversion IncomeTaxExpenseBenefitNetOfREITConversion	0	USD
CY2020	alex	Income Tax Expense Benefit Net Of Reit Conversion IncomeTaxExpenseBenefitNetOfREITConversion	-400000	USD
CY2019	alex	Income Tax Expense Benefit Net Of Reit Conversion IncomeTaxExpenseBenefitNetOfREITConversion	-2000000.0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	17700000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	11500000	USD
CY2020Q4	alex	Deferred Tax Assets Capitalized Development Costs DeferredTaxAssetsCapitalizedDevelopmentCosts	5500000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	6400000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	42600000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1700000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1600000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	15700000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	6000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	6400000	USD
CY2021Q4	alex	Deferred Tax Assets Disallowed Interest Expense DeferredTaxAssetsDisallowedInterestExpense	10500000	USD
CY2020Q4	alex	Deferred Tax Assets Disallowed Interest Expense DeferredTaxAssetsDisallowedInterestExpense	9100000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	52600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	20500000	USD
CY2021Q4	alex	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	1600000	USD
CY2020Q4	alex	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	2000000.0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3200000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	116800000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	118100000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	109600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	104000000.0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	7200000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14100000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5600000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12200000	USD
CY2021Q4	alex	Deferred Tax Liabilities Operating Lease Asset DeferredTaxLiabilitiesOperatingLeaseAsset	1600000	USD
CY2020Q4	alex	Deferred Tax Liabilities Operating Lease Asset DeferredTaxLiabilitiesOperatingLeaseAsset	1900000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	7200000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	14100000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	201100000	USD
CY2021Q4	alex	Deferred Tax Assets Operating Loss Carryforwards Domestic Tax Effected DeferredTaxAssetsOperatingLossCarryforwardsDomesticTaxEffected	42200000	USD
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	5600000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	36900000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	6000000.0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-36900000	USD
CY2021	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	400000	USD
CY2020	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	-400000	USD
CY2019	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	-2000000.0	USD
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	36500000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	6400000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-34900000	USD
CY2021	alex	Distributions And Allocations To Participating Securities DistributionsAndAllocationsToParticipatingSecurities	300000	USD
CY2020	alex	Distributions And Allocations To Participating Securities DistributionsAndAllocationsToParticipatingSecurities	100000	USD
CY2019	alex	Distributions And Allocations To Participating Securities DistributionsAndAllocationsToParticipatingSecurities	200000	USD
CY2021	alex	Income Loss From Continuing Operations Available To Stockholders IncomeLossFromContinuingOperationsAvailableToStockholders	36200000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5500000	USD
CY2020	alex	Income Loss From Continuing Operations Available To Stockholders IncomeLossFromContinuingOperationsAvailableToStockholders	6300000	USD
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000	shares
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	35100000	USD
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72600000	shares
CY2019	alex	Income Loss From Continuing Operations Available To Stockholders IncomeLossFromContinuingOperationsAvailableToStockholders	-35100000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1100000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-800000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1500000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-36600000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72500000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72300000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72200000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72400000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72200000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	300000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	200000	shares
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	1300000	USD
CY2019	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	0	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1800000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-14600000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	0	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-3400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-25100000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	0	USD
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-4400000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-6900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-4000000.0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2300000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-27400000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-7700000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	5300000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1600000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	100000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2800000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2500000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-4000000.0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	100000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-700000	USD
CY2021	alex	Other Comprehensive Income Loss Defined Benefit Plan Curtailment Gain Loss Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanCurtailmentGainLossBeforeTax	0	USD
CY2020	alex	Other Comprehensive Income Loss Defined Benefit Plan Curtailment Gain Loss Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanCurtailmentGainLossBeforeTax	0	USD
CY2019	alex	Other Comprehensive Income Loss Defined Benefit Plan Curtailment Gain Loss Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanCurtailmentGainLossBeforeTax	-1400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-20700000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11200000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3100000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3100000	USD
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2021	us-gaap	Revenues Revenues	379300000	USD
CY2020	us-gaap	Revenues Revenues	305300000	USD
CY2019	us-gaap	Revenues Revenues	435200000	USD
CY2021	alex	Total Segment Operating Profit Loss TotalSegmentOperatingProfitLoss	87500000	USD
CY2020	alex	Total Segment Operating Profit Loss TotalSegmentOperatingProfitLoss	54700000	USD
CY2021	us-gaap	Interest Expense InterestExpense	26300000	USD
CY2020	us-gaap	Interest Expense InterestExpense	30300000	USD
CY2020Q4	us-gaap	Assets Assets	2036000000	USD
CY2019	alex	Total Segment Operating Profit Loss TotalSegmentOperatingProfitLoss	17800000	USD
CY2021	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	2800000	USD
CY2020	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	500000	USD
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
CY2019	us-gaap	Interest Expense InterestExpense	33100000	USD
CY2021	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	27100000	USD
CY2020	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	19300000	USD
CY2019	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	23600000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	36900000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5600000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-38900000	USD
CY2021Q4	us-gaap	Assets Assets	1879800000	USD
CY2019Q4	us-gaap	Assets Assets	2084300000	USD
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	53500000	USD
CY2021Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	690800000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1625400000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1619300000	USD
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	25100000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	255100000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	50400000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	53300000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	50500000	USD
CY2020Q2	us-gaap	Disposal Group Not Discontinued Operation Loss Gain On Write Down DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown	5600000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1447700000	USD
CY2021	us-gaap	Real Estate Improvements RealEstateImprovements	45400000	USD
CY2020	us-gaap	Real Estate Improvements RealEstateImprovements	20400000	USD
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	232800000	USD
CY2021	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	17600000	USD
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	14300000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	61200000	USD
CY2021	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	0	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	0	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	0	USD
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1653200000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1625400000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1619300000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	154400000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	127500000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	107600000	USD
CY2021	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	27300000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	27400000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	24300000	USD
CY2021	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	1200000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	500000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	4400000	USD
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	180500000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	154400000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	127500000	USD

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$ALEX
Alexander & Baldwin, Inc. Stock $alex

2021 Q4 Form 10-K Financial Statement

#000154565422000008 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALEX Alexander & Baldwin, Inc. Stock $alex

2021 Q4 Form 10-K Financial Statement

#000154565422000008 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALEX
Alexander & Baldwin, Inc. Stock $alex