The carrying value as of the balance sheet date of obligations drawn from asset-specific financing facilities.

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The carrying value as of the balance sheet date of obligations drawn from revolving lines of credit.

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Fair value of securitized debt obligations.

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Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Obligation reflecting another party's right to economic interests in another entity or trust under a contractual right. For example, an investor may purchase a beneficial interest in a securitization transaction.

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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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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as held-to-maturity.

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Amount, before allowance for credit loss, of financing receivable.

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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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Amount of cash and cash equivalents 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. Cash equivalents include, but are not limited to, 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.

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Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Loans held-for-investment, net of allowance for credit losses	$ 4,290,047	$ 4,251,251	$ 4,226,212	$ 3,560,117	$ 3,292,989	$ 3,167,913
Loans held-for-investment, at fair value	4,250,847		4,261,612
Loans held-for-investment	4,366,757		4,226,212
Available-for-sale securities, at fair value	12,542		12,830
Held-to-maturity securities	10,788		18,076
Held-to-maturity securities, at fair value	11,374		18,076
Cash and cash equivalents	55,969		80,281
Restricted cash	3,497		79,483
Repurchase agreements	2,030,916		1,924,021
Securitized debt obligations	983,521		1,041,044
Securitized debt obligations, at fair value	941,262		1,050,912
Asset-specific financings	121,242		116,465
Revolving credit facilities	12,589		42,008
Convertible senior notes	270,437		269,634
Convertible senior notes, at fair value	$ 205,983		$ 283,332