Stated term of an agreement.

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Represents the number of loans acquired.

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Represents the automatically renewal period.

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Represents the core earnings period.

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No definition available.

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Represents the percentage of incentive fee multiplier.

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No definition available.

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The percentage of independent directors votes required for approval.

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No definition available.

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Threshold that core earnings must exceed over the designated period for incentive fees to be earned per terms of the agreement.

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No definition available.

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Represents the minimum notice period for termination.

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No definition available.

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The percentage fee to be paid when result is above the established threshold amount per the agreement.

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No definition available.

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The percentage fee to be paid when result is at or below the established threshold amount per the agreement.

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No definition available.

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Represents the percentage of Incentive fee multiplied by the weighted average of issue price.

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No definition available.

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The period over which core earnings must exceed the minimum threshold per the terms of the agreement.

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Represents the reimbursable expenses.

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No definition available.

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Represents the termination fee multiplier.

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Period immediately preceding the termination used as a basis for determination of the termination fee due per the terms of the agreement.

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No definition available.

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The threshold amount used in determining the percentage of fees due as defined in an agreement.

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Carrying amount as of the balance sheet date of obligations due all related parties.

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For investments which are quantified by principal amount, the principle balance held at close of period.

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The cash outflow associated with purchasing loans held for investment purposes during the period.

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Amount of transactions with related party during the financial reporting period.

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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.

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Related party transactions (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
Related party transactions (Details) $ in Thousands	Mar. 31, 2018 USD ($) loan	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Related-party transactions
Amount unpaid		$ 2,495		$ 2,495		$ 2,580
Purchase of loans, held-for-investment				569,254	$ 360,859
Investment in unconsolidated joint ventures		55,663		$ 55,663		$ 33,438
Management agreement
Related-party transactions
Term of agreement				3 years
Automatically renewal period				1 year
Minimum notice period for termination				180 days
Termination fee multiplier				3
Period immediately preceding the termination used as basis for determination of the termination fee due				24 months
Management fee
Related-party transactions
Fee percentage for results up to threshold				1.50%
Fee threshold				$ 500,000
Fee percentage for results in excess of threshold				1.00%
Incentive distribution
Related-party transactions
Incentive multiplier				15.00%
Core earnings period				12 months
Percentage of Incentive fee multiplied by the weighted average of issue price				8.00%
The period over which core earnings must exceed the minimum threshold per the terms of the agreement				48 months
Minimum core earnings threshold				$ 0
Minimum \| Management agreement
Related-party transactions
Independent director votes required for approval				66.70%
Manager \| Management fee
Related-party transactions
Fees		2,500	$ 2,100	$ 7,000	6,100
Amount unpaid		2,500	2,100	2,500	2,100
Manager \| Incentive distribution
Related-party transactions
Fees					700
Manager \| Expense reimbursement
Related-party transactions
Amount unpaid		1,000	1,700	1,000	1,700
Reimbursable expenses		$ 900	$ 800	$ 2,800	$ 2,500
Waterfall Olympic Master Fund LP
Related-party transactions
Number of loans acquired \| loan	75
Purchase of loans, held-for-investment	$ 51,600
Unpaid principal balance	$ 51,800