2.2.0.7 true Consolidated Statements of Cash Flows (Unaudited) (USD $) 0140 - Statement - Consolidated Statements of Cash Flows (Unaudited) true false In Thousands false false 1 USD true false false false AMB PROPERTY CORPORATION dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD true false false false AMB PROPERTY CORPORATION dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 1 AMB PROPERTY CORPORATION 0 na true na na No definition available. false true false false false false false false false false false http://amb.com/role/cashflowsstatements false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false false 1 USD true false false false AMB PROPERTY CORPORATION dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD true false false false AMB PROPERTY CORPORATION dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 1 USD true false false false AMB PROPERTY CORPORATION dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD true false false false AMB PROPERTY CORPORATION dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ na No definition available. No authoritative reference available. false 2 CASH FLOWS FROM OPERATING ACTIVITIES 2 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 3 Net income (loss) 2 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 8693000 8693 false false false 2 true true false false -94322000 -94322 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 4 Adjustments to net income (loss) : 2 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 5 Straight-line rents and amortization of lease intangibles 2 amb_StraightLineRentsAndAmortizationOfLeaseIntangibles amb false debit duration Straight-line rents and amortization of lease intangibles. false false false false false false false false false false false verboselabel false 1 false true false false -8807000 -8807 false false false 2 false true false false -4934000 -4934 false false false xbrli:monetaryItemType monetary Straight-line rents and amortization of lease intangibles. No authoritative reference available. false 6 Depreciation and amortization 2 us-gaap_DepreciationAndAmortization us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 96667000 96667 false false false 2 false true false false 80427000 80427 false false false xbrli:monetaryItemType monetary The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 7 Real estate impairment losses 2 us-gaap_ImpairmentOfRealEstate us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 175887000 175887 false false false xbrli:monetaryItemType monetary The charge against earnings in the period to reduce the carrying amount of real property to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 26 -Subparagraph b false 8 Foreign exchange (gains) losses 2 us-gaap_ForeignCurrencyTransactionGainLossUnrealized us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -655000 -655 false false false 2 false true false false 4980000 4980 false false false xbrli:monetaryItemType monetary The aggregate unrealized foreign currency transaction gain or loss (pretax) included in determining net income for the reporting period. Represents the aggregate of gains and losses on transactions that are unsettled as of the balance sheet date, which is therefore an adjustment to reconcile income (loss) from continuing operations to net cash provided by (used in) continuing operations. (Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting entity's financial statements. For certain entities, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains or losses may be disclosed as dealer gains or losses.) Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 30 false 9 Stock-based compensation amortization 2 us-gaap_ShareBasedCompensation us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 12541000 12541 false false false 2 false true false false 11949000 11949 false false false xbrli:monetaryItemType monetary The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock options, amortization of restricted stock, and adjustment for officers compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 10 Equity in earnings of unconsolidated joint ventures 2 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -9068000 -9068 false false false 2 false true false false -4250000 -4250 false false false xbrli:monetaryItemType monetary This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Such amount typically reflects adjustments similar to those made in preparing consolidated statements, including adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b false 11 Operating distributions received from unconsolidated joint ventures 2 us-gaap_EquityMethodInvestmentDividendsOrDistributions us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 11040000 11040 false false false 2 false true false false 2406000 2406 false false false xbrli:monetaryItemType monetary This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 false 12 Development profits, net of taxes 2 amb_DevelopmentProfitsNetOfTaxes amb false credit duration Gain (loss) on sale or contribution of properties for which the entity has performed development activities. false false false false false false false false false false true negated false 1 false true false false -5002000 -5002 false false false 2 false true false false -33286000 -33286 false false false xbrli:monetaryItemType monetary Gain (loss) on sale or contribution of properties for which the entity has performed development activities. No authoritative reference available. false 13 Debt premiums, discounts and finance cost amortization, net 2 us-gaap_AmortizationOfFinancingCostsAndDiscounts us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 6877000 6877 false false false 2 false true false false 6484000 6484 false false false xbrli:monetaryItemType monetary The component of interest expense representing the noncash expenses charged against earnings in the period to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 14 Discontinued operations: 2 us-gaap_DiscontinuedOperationAdditionalDisclosuresAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 15 Depreciation and amortization 2 amb_DepreciationAndAmortizationDiscontinuedOperations amb false debit duration Depreciation And Amortization Discontinued Operations. false false false false false false false false false false false verboselabel false 1 false true false false 514000 514 false false false 2 false true false false 2348000 2348 false false false xbrli:monetaryItemType monetary Depreciation And Amortization Discontinued Operations. No authoritative reference available. false 16 Real estate impairment losses 2 amb_RealEstateImpairmentLosses amb false debit duration Real estate impairment losses. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 5966000 5966 false false false xbrli:monetaryItemType monetary Real estate impairment losses. No authoritative reference available. false 17 Gains from sale of real estate interests, net of taxes 2 amb_GainsLossesFromSaleOfRealEstateInterestNetOfTaxes amb false debit duration Gains losses from sale of real estate interest, net of taxes. false false false false false false false false false false false verboselabel false 1 false true false false -4248000 -4248 false false false 2 false true false false -28704000 -28704 false false false xbrli:monetaryItemType monetary Gains losses from sale of real estate interest, net of taxes. No authoritative reference available. false 18 Changes in assets and liabilities: 2 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 19 Accounts receivable and other assets 2 us-gaap_IncreaseDecreaseInOperatingAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -10067000 -10067 false false false 2 false true false false 7224000 7224 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of assets used to generate operating income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 20 Accounts payable and other liabilities 2 us-gaap_IncreaseDecreaseInOperatingLiabilities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 16263000 16263 false false false 2 false true false false -11047000 -11047 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of liabilities that result from activities that generate operating income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 true 21 Net cash provided by operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 114748000 114748 false false false 2 false true false false 121128000 121128 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 22 CASH FLOWS FROM INVESTING ACTIVITIES 2 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 23 Change in restricted cash 2 us-gaap_IncreaseDecreaseInRestrictedCash us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -6686000 -6686 false false false 2 false true false false -3629000 -3629 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) for the net change associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16, 17 false 24 Cash paid for property acquisitions 2 us-gaap_PaymentsToAcquireRealEstate us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -13000000 -13000 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 false 25 Additions to land, buildings, development costs, building improvements and lease costs 2 us-gaap_PaymentsToDevelopRealEstateAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -145330000 -145330 false false false 2 false true false false -270801000 -270801 false false false xbrli:monetaryItemType monetary Payments to develop real estate assets is the process of adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements; shall be classified as cash flow from investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 false 26 Net proceeds from divestiture of real estate and securities 2 amb_NetProceedsFromDivestitureOfRealEstateAndSecurities amb false debit duration Net proceeds from divestiture of real estate and securities. false false false false false false false false false false false verboselabel false 1 false true false false 39652000 39652 false false false 2 false true false false 278580000 278580 false false false xbrli:monetaryItemType monetary Net proceeds from divestiture of real estate and securities. No authoritative reference available. false 27 Additions to interests in unconsolidated joint ventures 2 us-gaap_PaymentsToAcquireEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -210665000 -210665 false false false 2 false true false false -4160000 -4160 false false false xbrli:monetaryItemType monetary The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b false 28 Purchase of noncontrolling interest 2 us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false true false false -8968000 -8968 false false false xbrli:monetaryItemType monetary The cash outflow associated with the purchase of noncontrolling interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b false 29 Capital distributions received from unconsolidated joint ventures 2 amb_CapitalDistributionsReceivedFromUnconsolidatedJointVentures amb false debit duration Capital distributions received from unconsolidated joint ventures. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 5350000 5350 false false false xbrli:monetaryItemType monetary Capital distributions received from unconsolidated joint ventures. No authoritative reference available. false 30 Repayments from affiliates 2 us-gaap_ProceedsFromRepaymentsOfRelatedPartyDebt us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 4157000 4157 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from the proceeds and repayments made on the borrowing from related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and such forth. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 true 31 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -331872000 -331872 false false false 2 false true false false -3628000 -3628 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 32 CASH FLOWS FROM FINANCING ACTIVITIES 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 33 Issuance of common stock, net 2 us-gaap_ProceedsFromIssuanceOfCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 478850000 478850 false false false 2 false true false false 552258000 552258 false false false xbrli:monetaryItemType monetary The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a false 34 Proceeds from stock option exercises 2 us-gaap_ProceedsFromStockOptionsExercised us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3108000 3108 false false false 2 false true false false 130000 130 false false false xbrli:monetaryItemType monetary The cash inflow associated with the amount received from holders exercising their stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph i Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a false 35 Borrowings on secured debt 2 us-gaap_ProceedsFromIssuanceOfSecuredDebt us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 26581000 26581 false false false 2 false true false false 21688000 21688 false false false xbrli:monetaryItemType monetary The cash inflow from the issuance of collateralized debt obligation (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 36 Payments on secured debt 2 us-gaap_RepaymentsOfSecuredDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -167411000 -167411 false false false 2 false true false false -50729000 -50729 false false false xbrli:monetaryItemType monetary The cash outflow from the payment of collateralized debt obligation (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 37 Borrowings on other debt 2 us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 4300000 4300 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash inflow from other borrowings not otherwise defined in the taxonomy (with maturities initially due beyond one year or the normal operating cycle of the entity, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 38 Payments on other debt 2 us-gaap_RepaymentsOfOtherLongTermDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -11692000 -11692 false false false 2 false true false false -488000 -488 false false false xbrli:monetaryItemType monetary The cash outflow for borrowing not otherwise defined in the taxonomy (with maturities initially due after one year or beyond the operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 39 Borrowings on unsecured credit facilities 2 us-gaap_ProceedsFromLongTermLinesOfCredit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 341658000 341658 false false false 2 false true false false 407702000 407702 false false false xbrli:monetaryItemType monetary The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 40 Payments on unsecured credit facilities 2 us-gaap_RepaymentsOfLongTermLinesOfCredit us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -405245000 -405245 false false false 2 false true false false -709065000 -709065 false false false xbrli:monetaryItemType monetary The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 41 Payment of financing fees 2 us-gaap_PaymentsOfFinancingCosts us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -3077000 -3077 false false false 2 false true false false -2941000 -2941 false false false xbrli:monetaryItemType monetary The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 false 42 Payments on senior debt 2 us-gaap_RepaymentsOfSeniorDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false true false false -283205000 -283205 false false false xbrli:monetaryItemType monetary The cash outflow for a debt where holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 43 Contributions from joint venture partners 2 us-gaap_ProceedsFromPartnershipContribution us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 19579000 19579 false false false 2 false true false false 6444000 6444 false false false xbrli:monetaryItemType monetary The cash inflow from the capital received in cash from a partner in a partnership during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 44 Dividends paid to common and preferred stockholders 2 amb_DividendsPaidToCommonAndPreferredStockholders amb false credit duration Dividends paid to common and preferred stockholders. false false false false false false false false false false true negated false 1 false true false false -91492000 -91492 false false false 2 false true false false -47410000 -47410 false false false xbrli:monetaryItemType monetary Dividends paid to common and preferred stockholders. No authoritative reference available. false 46 Distributions to noncontrolling interests, including preferred units 2 us-gaap_PaymentsOfDividendsMinorityInterest us-gaap true credit duration No definition available. false false false false false false false false false false true negatedtotal false 1 false true false false -6273000 -6273 false false false 2 false true false false -11695000 -11695 false false false xbrli:monetaryItemType monetary The cash outflow for the return on capital for noncontrolled interest in the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a true 47 Net cash provided by (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 188886000 188886 false false false 2 false true false false -117311000 -117311 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 48 Net effect of exchange rate changes on cash 2 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 55608000 55608 false false false 2 false true false false -38219000 -38219 false false false xbrli:monetaryItemType monetary The effect of exchange rate changes on cash balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 25 false 49 Net increase (decrease) in cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 27370000 27370 false false false 2 false true false false -38030000 -38030 false false false xbrli:monetaryItemType monetary The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 50 Cash and cash equivalents at beginning of period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false true false false 187169000 187169 false false false 2 false true false false 223936000 223936 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 51 Cash and cash equivalents at end of period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false true false periodendlabel false 1 false true false false 214539000 214539 false false false 2 false true false false 185906000 185906 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 52 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION 2 us-gaap_SupplementalCashFlowInformationAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 53 Cash paid for interest, net of capitalized interest 2 us-gaap_InterestPaidNet us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 64274000 64274 false false false 2 false true false false 64594000 64594 false false false xbrli:monetaryItemType monetary The amount of cash paid during the current period for interest owed on money borrowed, net of interest capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -Subparagraph e true 54 Non-cash transactions: 2 us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string Designated to encapsulate the entire footnote disclosure that gives information on the supplemental cash flow activities for noncash (or part noncash) transactions for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. false 55 Acquisition of properties 2 amb_NonCashAcquisitionOfProperties amb false debit duration Non-Cash Acquisition of properties. false false false false false false false false false false false verboselabel false 1 false true false false 13337000 13337 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Non-Cash Acquisition of properties. No authoritative reference available. false 56 Acquisition capital 2 amb_NonCashAcquisitionCapital amb false credit duration Non-cash Acquisition capital. false false false false false false false false false false false totallabel false 1 false true false false -337000 -337 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Non-cash Acquisition capital. No authoritative reference available. true 57 Net cash paid for property acquisitions 2 amb_NetCashPaidForPropertyAcquisitionsNonCashTransactions amb false debit duration Net cash paid for property acquisitions. false false false false false false false false false false false totallabel false 1 false true false false 13000000 13000 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Net cash paid for property acquisitions. No authoritative reference available. true 58 Contribution of properties to unconsolidated joint ventures, net 2 us-gaap_ContributionOfProperty us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 22391000 22391 false false false 2 false true false false 8879000 8879 false false false xbrli:monetaryItemType monetary Value of property contributed in noncash investing and financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 false 59 AMB PROPERTY, L.P. 0 na true na na No definition available. false true false false false false false false false false false http://amb.com/role/cashflowsstatements false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false false 5 USD true false false false AMB PROPERTY, L.P. dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_SubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 6 USD true false false false AMB PROPERTY, L.P. dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_SubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 7 USD true false false false AMB PROPERTY, L.P. dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_SubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 8 USD true false false false AMB PROPERTY, L.P. dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_SubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ na No definition available. No authoritative reference available. false 60 CASH FLOWS FROM OPERATING ACTIVITIES 2 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 61 Net income (loss) 2 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 8693000 8693 false false false 2 false true false false -94322000 -94322 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 62 Adjustments to net income (loss) : 2 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 63 Straight-line rents and amortization of lease intangibles 2 amb_StraightLineRentsAndAmortizationOfLeaseIntangibles amb false debit duration Straight-line rents and amortization of lease intangibles. false false false false false false false false false false false verboselabel false 1 false true false false -8807000 -8807 false false false 2 false true false false -4934000 -4934 false false false xbrli:monetaryItemType monetary Straight-line rents and amortization of lease intangibles. No authoritative reference available. false 64 Depreciation and amortization 2 us-gaap_DepreciationAndAmortization us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 96667000 96667 false false false 2 false true false false 80427000 80427 false false false xbrli:monetaryItemType monetary The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 65 Real estate impairment losses 2 us-gaap_ImpairmentOfRealEstate us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 175887000 175887 false false false xbrli:monetaryItemType monetary The charge against earnings in the period to reduce the carrying amount of real property to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 26 -Subparagraph b false 66 Foreign exchange (gains) losses 2 us-gaap_ForeignCurrencyTransactionGainLossUnrealized us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -655000 -655 false false false 2 false true false false 4980000 4980 false false false xbrli:monetaryItemType monetary The aggregate unrealized foreign currency transaction gain or loss (pretax) included in determining net income for the reporting period. Represents the aggregate of gains and losses on transactions that are unsettled as of the balance sheet date, which is therefore an adjustment to reconcile income (loss) from continuing operations to net cash provided by (used in) continuing operations. (Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting entity's financial statements. For certain entities, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains or losses may be disclosed as dealer gains or losses.) Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 30 false 67 Stock-based compensation amortization 2 us-gaap_ShareBasedCompensation us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 12541000 12541 false false false 2 false true false false 11949000 11949 false false false xbrli:monetaryItemType monetary The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock options, amortization of restricted stock, and adjustment for officers compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 68 Equity in earnings of unconsolidated joint ventures 2 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -9068000 -9068 false false false 2 false true false false -4250000 -4250 false false false xbrli:monetaryItemType monetary This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Such amount typically reflects adjustments similar to those made in preparing consolidated statements, including adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b false 69 Operating distributions received from unconsolidated joint ventures 2 us-gaap_EquityMethodInvestmentDividendsOrDistributions us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 11040000 11040 false false false 2 false true false false 2406000 2406 false false false xbrli:monetaryItemType monetary This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 false 70 Development profits, net of taxes 2 amb_DevelopmentProfitsNetOfTaxes amb false credit duration Gain (loss) on sale or contribution of properties for which the entity has performed development activities. false false false false false false false false false false true negated false 1 false true false false -5002000 -5002 false false false 2 false true false false -33286000 -33286 false false false xbrli:monetaryItemType monetary Gain (loss) on sale or contribution of properties for which the entity has performed development activities. No authoritative reference available. false 71 Debt premiums, discounts and finance cost amortization, net 2 us-gaap_AmortizationOfFinancingCostsAndDiscounts us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 6877000 6877 false false false 2 false true false false 6484000 6484 false false false xbrli:monetaryItemType monetary The component of interest expense representing the noncash expenses charged against earnings in the period to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 72 Discontinued operations: 2 us-gaap_DiscontinuedOperationAdditionalDisclosuresAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 73 Depreciation and amortization 2 amb_DepreciationAndAmortizationDiscontinuedOperations amb false debit duration Depreciation And Amortization Discontinued Operations. false false false false false false false false false false false verboselabel false 1 false true false false 514000 514 false false false 2 false true false false 2348000 2348 false false false xbrli:monetaryItemType monetary Depreciation And Amortization Discontinued Operations. No authoritative reference available. false 74 Real estate impairment losses 2 amb_RealEstateImpairmentLosses amb false debit duration Real estate impairment losses. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 5966000 5966 false false false xbrli:monetaryItemType monetary Real estate impairment losses. No authoritative reference available. false 75 Gains from sale of real estate interests, net of taxes 2 amb_GainsLossesFromSaleOfRealEstateInterestNetOfTaxes amb false debit duration Gains losses from sale of real estate interest, net of taxes. false false false false false false false false false false false verboselabel false 1 false true false false -4248000 -4248 false false false 2 false true false false -28704000 -28704 false false false xbrli:monetaryItemType monetary Gains losses from sale of real estate interest, net of taxes. No authoritative reference available. false 76 Changes in assets and liabilities: 2 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 77 Accounts receivable and other assets 2 us-gaap_IncreaseDecreaseInOperatingAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -10067000 -10067 false false false 2 false true false false 7224000 7224 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of assets used to generate operating income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 78 Accounts payable and other liabilities 2 us-gaap_IncreaseDecreaseInOperatingLiabilities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 16263000 16263 false false false 2 false true false false -11047000 -11047 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of liabilities that result from activities that generate operating income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 true 79 Net cash provided by operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 114748000 114748 false false false 2 false true false false 121128000 121128 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 80 CASH FLOWS FROM INVESTING ACTIVITIES 2 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 81 Change in restricted cash 2 us-gaap_IncreaseDecreaseInRestrictedCash us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -6686000 -6686 false false false 2 false true false false -3629000 -3629 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) for the net change associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16, 17 false 82 Cash paid for property acquisitions 2 us-gaap_PaymentsToAcquireRealEstate us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -13000000 -13000 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 false 83 Additions to land, buildings, development costs, building improvements and lease costs 2 us-gaap_PaymentsToDevelopRealEstateAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -145330000 -145330 false false false 2 false true false false -270801000 -270801 false false false xbrli:monetaryItemType monetary Payments to develop real estate assets is the process of adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements; shall be classified as cash flow from investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 false 84 Net proceeds from divestiture of real estate and securities 2 amb_NetProceedsFromDivestitureOfRealEstateAndSecurities amb false debit duration Net proceeds from divestiture of real estate and securities. false false false false false false false false false false false verboselabel false 1 false true false false 39652000 39652 false false false 2 false true false false 278580000 278580 false false false xbrli:monetaryItemType monetary Net proceeds from divestiture of real estate and securities. No authoritative reference available. false 85 Additions to interests in unconsolidated joint ventures 2 us-gaap_PaymentsToAcquireEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -210665000 -210665 false false false 2 false true false false -4160000 -4160 false false false xbrli:monetaryItemType monetary The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b false 86 Purchase of noncontrolling interest 2 us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false true false false -8968000 -8968 false false false xbrli:monetaryItemType monetary The cash outflow associated with the purchase of noncontrolling interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b false 87 Capital distributions received from unconsolidated joint ventures 2 amb_CapitalDistributionsReceivedFromUnconsolidatedJointVentures amb false debit duration Capital distributions received from unconsolidated joint ventures. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 5350000 5350 false false false xbrli:monetaryItemType monetary Capital distributions received from unconsolidated joint ventures. No authoritative reference available. false 88 Repayments from affiliates 2 us-gaap_ProceedsFromRepaymentsOfRelatedPartyDebt us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 4157000 4157 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from the proceeds and repayments made on the borrowing from related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and such forth. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 true 89 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -331872000 -331872 false false false 2 false true false false -3628000 -3628 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 90 CASH FLOWS FROM FINANCING ACTIVITIES 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 91 Issuance of common stock, net 2 us-gaap_ProceedsFromIssuanceOfCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 478850000 478850 false false false 2 false true false false 552258000 552258 false false false xbrli:monetaryItemType monetary The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a false 92 Proceeds from stock option exercises 2 us-gaap_ProceedsFromStockOptionsExercised us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3108000 3108 false false false 2 false true false false 130000 130 false false false xbrli:monetaryItemType monetary The cash inflow associated with the amount received from holders exercising their stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph i Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a false 93 Borrowings on secured debt 2 us-gaap_ProceedsFromIssuanceOfSecuredDebt us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 26581000 26581 false false false 2 false true false false 21688000 21688 false false false xbrli:monetaryItemType monetary The cash inflow from the issuance of collateralized debt obligation (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 94 Payments on secured debt 2 us-gaap_RepaymentsOfSecuredDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -167411000 -167411 false false false 2 false true false false -50729000 -50729 false false false xbrli:monetaryItemType monetary The cash outflow from the payment of collateralized debt obligation (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 95 Borrowings on other debt 2 us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 4300000 4300 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash inflow from other borrowings not otherwise defined in the taxonomy (with maturities initially due beyond one year or the normal operating cycle of the entity, if longer). 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 97 Borrowings on unsecured credit facilities 2 us-gaap_ProceedsFromLongTermLinesOfCredit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 341658000 341658 false false false 2 false true false false 407702000 407702 false false false xbrli:monetaryItemType monetary The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 98 Payments on unsecured credit facilities 2 us-gaap_RepaymentsOfLongTermLinesOfCredit us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -405245000 -405245 false false false 2 false true false false -709065000 -709065 false false false xbrli:monetaryItemType monetary The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 99 Payment of financing fees 2 us-gaap_PaymentsOfFinancingCosts us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -3077000 -3077 false false false 2 false true false false -2941000 -2941 false false false xbrli:monetaryItemType monetary The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 false 100 Payments on senior debt 2 us-gaap_RepaymentsOfSeniorDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false true false false -283205000 -283205 false false false xbrli:monetaryItemType monetary The cash outflow for a debt where holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 101 Contributions from joint venture partners 2 us-gaap_ProceedsFromPartnershipContribution us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 19579000 19579 false false false 2 false true false false 6444000 6444 false false false xbrli:monetaryItemType monetary The cash inflow from the capital received in cash from a partner in a partnership during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 103 Distributions paid to partners 2 amb_DistributionsPaidToPartners amb false credit duration Distributions Paid To Partners. false false false false false false false false false false true negated false 1 false true false false -92665000 -92665 false false false 2 false true false false -48629000 -48629 false false false xbrli:monetaryItemType monetary Distributions Paid To Partners. No authoritative reference available. false 104 Distributions to noncontrolling interests, including preferred units 2 us-gaap_PaymentsOfDividendsMinorityInterest us-gaap true credit duration No definition available. false false false false false false false false false false true negatedtotal false 1 false true false false -5100000 -5100 false false false 2 false true false false -10476000 -10476 false false false xbrli:monetaryItemType monetary The cash outflow for the return on capital for noncontrolled interest in the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a true 105 Net cash provided by (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 188886000 188886 false false false 2 false true false false -117311000 -117311 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 106 Net effect of exchange rate changes on cash 2 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 55608000 55608 false false false 2 false true false false -38219000 -38219 false false false xbrli:monetaryItemType monetary The effect of exchange rate changes on cash balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 25 false 107 Net increase (decrease) in cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 27370000 27370 false false false 2 false true false false -38030000 -38030 false false false xbrli:monetaryItemType monetary The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 108 Cash and cash equivalents at beginning of period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false true false false 187169000 187169 false false false 2 false true false false 223936000 223936 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 109 Cash and cash equivalents at end of period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false true false periodendlabel false 1 false true false false 214539000 214539 false false false 2 false true false false 185906000 185906 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 110 SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION 2 us-gaap_SupplementalCashFlowInformationAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 111 Cash paid for interest, net of capitalized interest 2 us-gaap_InterestPaidNet us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 64274000 64274 false false false 2 false true false false 64594000 64594 false false false xbrli:monetaryItemType monetary The amount of cash paid during the current period for interest owed on money borrowed, net of interest capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -Subparagraph e true 112 Non-cash transactions: 2 us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string Designated to encapsulate the entire footnote disclosure that gives information on the supplemental cash flow activities for noncash (or part noncash) transactions for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. false 113 Acquisition of properties 2 amb_NonCashAcquisitionOfProperties amb false debit duration Non-Cash Acquisition of properties. false false false false false false false false false false false verboselabel false 1 false true false false 13337000 13337 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Non-Cash Acquisition of properties. No authoritative reference available. false 114 Acquisition capital 2 amb_NonCashAcquisitionCapital amb false credit duration Non-cash Acquisition capital. false false false false false false false false false false false totallabel false 1 false true false false -337000 -337 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Non-cash Acquisition capital. No authoritative reference available. true 115 Net cash paid for property acquisitions 2 amb_NetCashPaidForPropertyAcquisitionsNonCashTransactions amb false debit duration Net cash paid for property acquisitions. false false false false false false false false false false false totallabel false 1 false true false false 13000000 13000 false false false 2 false false false false 0 0 false false false xbrli:monetaryItemType monetary Net cash paid for property acquisitions. No authoritative reference available. true 116 Contribution of properties to unconsolidated joint ventures, net 2 us-gaap_ContributionOfProperty us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 22391000 22391 false false false 2 true true false false 8879000 8879 false false false xbrli:monetaryItemType monetary Value of property contributed in noncash investing and financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 false 2 114 false Thousands UnKnown UnKnown false true