Secured debt issued to affiliates.

No definition available.

Name:	aamc_SecuredDebtIssuedToAffiliates
Namespace Prefix:	aamc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This is the principal amount outstanding for securitized loans only (across all types of loans).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51814546&loc=d3e107314-111719

+ Details

Name:	us-gaap_PrincipalAmountOutstandingOnLoansSecuritized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of other collateralized debt obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

+ Details

Name:	us-gaap_SecuredDebtOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	dei_LegalEntityAxis=aamc_ARLP20151Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis=us-gaap_LoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aamc_AssetbackedSecuritiesClassANotes20151Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aamc_AssetbackedSecuritiesClassMNotes20151Member
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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=aamc_AssetbackedSecuritiesClassANotesMember
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- Details

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Borrowings - Other secured debt (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015	Jun. 29, 2015	Nov. 25, 2014	Sep. 25, 2014
Debt Instrument [Line Items]
Deferred debt issuance costs		$ 0
Amount outstanding	$ 160,392,000	502,599,000
ARLP 2015-1 \| Loans
Debt Instrument [Line Items]
Book value of the underlying securitized assets	274,100,000
Secured debt
Debt Instrument [Line Items]
Deferred debt issuance costs	(1,104,000)	(3,031,000)
Amount outstanding	$ 160,392,000	$ 502,599,000
Secured debt \| Asset-backed Securities Class A Notes 2015-1
Debt Instrument [Line Items]
Interest rate on debt	4.01%	4.01%	4.01%
Amount outstanding before deducting deferred debt issuance costs	$ 195,496,000	$ 203,429,000
Secured debt issued to affiliates	$ 34,000,000	$ 34,000,000	$ 34,000,000
Amount outstanding			205,000,000.0
Secured debt \| Asset-backed Securities Class M Notes 2015-1
Debt Instrument [Line Items]
Interest rate on debt	0.00%	0.00%
Amount outstanding before deducting deferred debt issuance costs	$ 60,000,000	$ 60,000,000
Secured debt issued to affiliates	$ 60,000,000	$ 60,000,000
Amount outstanding			$ 60,000,000.0
Secured debt \| Asset-backed securities Class A notes Trust 2
Debt Instrument [Line Items]
Interest rate on debt		3.63%		3.85%
Amount outstanding before deducting deferred debt issuance costs		$ 244,935,000
Secured debt issued to affiliates		$ 45,138,000
Amount outstanding				$ 270,800,000
Secured debt \| Asset-backed securities Class M notes Trust 2
Debt Instrument [Line Items]
Interest rate on debt		0.00%
Amount outstanding before deducting deferred debt issuance costs		$ 234,010,000
Secured debt issued to affiliates		$ 234,010,000
Amount outstanding				$ 234,000,000
Secured debt \| Asset-backed securities Class A notes
Debt Instrument [Line Items]
Interest rate on debt		3.47%			3.47%
Amount outstanding before deducting deferred debt issuance costs		$ 136,404,000
Amount outstanding					$ 150,000,000.0
Secured debt \| Asset-backed securities Class M notes
Debt Instrument [Line Items]
Interest rate on debt		4.25%			4.25%
Amount outstanding before deducting deferred debt issuance costs		$ 32,000,000
Secured debt issued to affiliates		$ 32,000,000
Amount outstanding					$ 32,000,000.0