Variable interest entities and securitization activities - Consolidated VIE Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Assets
Cash and cash equivalents	$ 52,727	$ 54,406	$ 47,845
Restricted cash	45,303	28,921	$ 18,864
Real estate acquired in settlement of loans, held for sale	60,807	7,787
Accrued interest	8,645	7,253
Total assets	1,961,127	1,251,057
Liabilities
Securitized debt obligations of consolidated VIEs, net	1,465,539	905,367
Consolidated VIEs
Assets
Cash and cash equivalents	96
Restricted cash	7,012	11,643
Loans, net	1,928,533	1,220,974
Loans, held for sale, at fair value	3,075
Real estate acquired in settlement of loans, held for sale		176
Accrued interest	10,423	6,750
Due from servicers	11,988	11,514
Total assets	1,961,127	1,251,057
Liabilities
Securitized debt obligations of consolidated VIEs, net	1,465,539	905,367
Total liabilities	$ 1,465,539	$ 905,367

The net amount of loans and leases receivable of consolidated variable interest entities.

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The carrying amount of the consolidated Variable Interest Entity's securitized debt obligations included in the reporting entity's statement of financial position.

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For an unclassified balance sheet, the amount of fees and other revenue, excluding investment income receivable, earned but not yet received, which were recognized in conformity with revenue recognition criteria based on estimates or specific contractual terms.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

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