Investments in Unconsolidated Entities Schedule of Ownership of Investments in Unconsolidated Entities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	$ 23,817	$ 31,023
Longbridge Financial LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	49.70%	49.70%
LendSure Mortgage Corp [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	49.90%	49.90%
LendSure Mortgage Corp [Member] \| Nonvoting Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	15.00%
Jepson Holdings Limited
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	30.10%	30.10%
Elizon AFG 2018-1 LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	0.00%	13.40%
Effective Ownership Percentage	58.20%	70.40%
Elizon TCG SBC 2017-1
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	36.00%	0.00%
Elizon DB 2015-1 LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	8.90%	3.50%
Effective Ownership Percentage		48.70%
Minimum \| Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	7.40%	7.70%
Maximum \| Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	56.30%	51.00%

Effective percentage ownership before the effects of consolidation of entities' respective segregated portions of the VIE.

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The amount of net income (loss) reported by an equity method investment of the entity.

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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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