Valuation (Schedule Of Significant Unobservable Inputs, Qualitative Information) (Details) - Level 3 [Member] - USD ($)		12 Months Ended
		Dec. 31, 2018		Dec. 31, 2017
Valuation, Market Approach [Member] | Private Label Residential Mortgage Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 36,945,000		$ 40,870,000
Valuation, Market Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		17.42		45.00
Valuation, Market Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		178.00		183.00
Valuation, Market Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		78.31		81.63
Valuation, Market Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 576,000		$ 7,577,000
Valuation, Market Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		5.93		5.31
Valuation, Market Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		6.36		60.55
Valuation, Market Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		6.14		36.19
Valuation, Market Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value				$ 6,797,000
Valuation, Market Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Measurement Input, Quoted Price [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type				8.88
Valuation, Market Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Measurement Input, Quoted Price [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type				105.63
Valuation, Market Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Measurement Input, Quoted Price [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type				82.94
Valuation, Market Approach [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 13,976,000
Valuation, Market Approach [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member] | Measurement Input, Quoted Price [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		9.69
Valuation, Market Approach [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member] | Measurement Input, Quoted Price [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		91.00
Valuation, Market Approach [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member] | Measurement Input, Quoted Price [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		59.18
Valuation, Market Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 744,000		$ 1,225,000
Valuation, Market Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		1.70		10.14
Valuation, Market Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		9.12		18.21
Valuation, Market Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement Input, Quoted Price [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		5.64		15.25
Valuation, Market Approach [Member] | Collateralized Loan Obligations [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 5,828,000		$ 10,288,000
Valuation, Market Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Quoted Price [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		2.64		85.00
Valuation, Market Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Quoted Price [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		375.00		435.00
Valuation, Market Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Quoted Price [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		167.78		138.94
Valuation, Market Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value				$ 5,033,000
Valuation, Market Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Measurement Input, Quoted Price of Underlying Assets [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type	[1]			96.91
Valuation, Market Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Measurement Input, Quoted Price of Underlying Assets [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type	[1]			96.91
Valuation, Market Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Measurement Input, Quoted Price of Underlying Assets [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type	[1]			96.91
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 54,346,000		$ 60,427,000
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Total Outstanding Collateral		100.00%		100.00%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		3.50%		0.50%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		66.10%		26.50%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		10.70%		9.80%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		16.00%		2.10%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		92.10%		84.70%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		50.40%		38.30%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Default Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		0.00%		0.90%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Default Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		23.10%		18.20%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, Default Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		8.70%		8.60%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		1.50%		0.30%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		14.60%		31.50%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		7.30%		11.30%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		6.10%		12.50%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		61.80%		90.20%
Valuation, Income Approach [Member] | Private Label Residential Mortgage Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		33.60%		41.80%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 227,000		$ 4,770,000
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Total Outstanding Collateral		100.00%		100.00%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		3.40%		4.30%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		3.40%		42.50%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		3.40%		18.60%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Default Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		2.00%		1.10%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Default Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		2.00%		5.20%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, Default Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		2.00%		2.50%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		6.60%		2.80%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		6.60%		17.10%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		6.60%		8.50%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		91.40%		80.10%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		91.40%		96.10%
Valuation, Income Approach [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		91.40%		89.00%
Valuation, Income Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 4,793,000		$ 20,301,000
Valuation, Income Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		17.50%		3.00%
Valuation, Income Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		17.50%		16.10%
Valuation, Income Approach [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		17.50%		10.60%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 6,549,000		$ 4,948,000
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		2.11%	[2]	3.81%	[3]
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		35.21%	[2]	35.21%	[3]
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		6.77%	[2]	7.30%	[3]
Total Outstanding Collateral		100.00%		100.00%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		37.70%		51.20%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		100.00%		100.00%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		66.20%		69.10%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		0.00%		0.00%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		62.30%		48.80%
Valuation, Income Approach [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		33.80%		30.90%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 9,087,000		$ 14,623,000
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Total Outstanding Collateral		100.00%		100.00%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		12.60%		7.10%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		103.10%		62.20%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		26.70%		15.20%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Prepayment Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		8.10%		22.50%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Prepayment Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		88.40%		92.90%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Prepayment Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		65.20%		77.90%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Default Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		3.70%		1.90%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Default Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		40.80%		40.20%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, Default Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		13.50%		10.30%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, projected collateral recoveries [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		4.20%		3.40%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, projected collateral recoveries [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		38.00%		37.20%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement Input, projected collateral recoveries [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		11.90%		9.50%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement input, projected collateral scheduled amortization [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		3.50%		0.00%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement input, projected collateral scheduled amortization [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		13.50%		4.10%
Valuation, Income Approach [Member] | Collateralized Loan Obligations [Member] | Measurement input, projected collateral scheduled amortization [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		9.40%		2.30%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 206,761,000		$ 135,258,000
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Total Outstanding Collateral		100.00%		100.00%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		7.00%		7.00%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		18.30%		18.90%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		8.50%		9.50%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Prepayment Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		0.00%		2.20%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Prepayment Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		45.90%		50.10%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Prepayment Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		33.50%		33.50%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Default Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		2.60%		0.40%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Default Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		84.80%		28.60%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement Input, Default Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		9.10%		8.20%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement input, projected collateral scheduled amortization [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		15.20%		46.80%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement input, projected collateral scheduled amortization [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		96.60%		95.20%
Valuation, Income Approach [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Measurement input, projected collateral scheduled amortization [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		57.40%		58.30%
Valuation, Income Approach [Member] | Performing Commercial Mortgage Loans [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 163,876,000		$ 84,377,000
Valuation, Income Approach [Member] | Performing Commercial Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		8.00%		8.00%
Valuation, Income Approach [Member] | Performing Commercial Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		22.50%		15.40%
Valuation, Income Approach [Member] | Performing Commercial Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		9.60%		10.70%
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 80,513,000		$ 49,610,000
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Recovery Timeline		3 months		4 months
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Recovery Timeline		16 months		17 months
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Recovery Timeline		7 months 27 days		9 months 15 days
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		9.60%		11.40%
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		27.40%		36.50%
Valuation, Income Approach [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		13.20%		17.70%
Valuation, Income Approach [Member] | Performing Residential Mortgage Loans [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 171,367,000		$ 42,030,000
Valuation, Income Approach [Member] | Performing Residential Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		2.70%		1.60%
Valuation, Income Approach [Member] | Performing Residential Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		12.90%		18.80%
Valuation, Income Approach [Member] | Performing Residential Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		6.00%		6.20%
Valuation, Income Approach [Member] | Securitized Residential Mortgage Loans [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 314,202,000	[4]	$ 132,424,000	[5]
Valuation, Income Approach [Member] | Securitized Residential Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		4.30%	[4]	3.50%	[5]
Valuation, Income Approach [Member] | Securitized Residential Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		4.60%	[4]	3.50%	[5]
Valuation, Income Approach [Member] | Securitized Residential Mortgage Loans [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		4.60%	[4]	3.50%	[5]
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 12,557,000		$ 8,609,000
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Recovery Timeline		1 month 27 days	[6]	1 month 27 days	[7]
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Recovery Timeline		42 months 6 days	[6]	40 months 15 days	[7]
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Recovery Timeline		27 months 24 days	[6]	25 months 18 days	[7]
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		4.30%		2.80%
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		25.10%		34.50%
Valuation, Income Approach [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		11.30%		8.90%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 1,472,000		$ 3,140,000
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Total Outstanding Collateral		100.00%		100.00%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		33.60%		19.80%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		42.00%		26.50%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, Prepayment Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		36.50%		22.40%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, Default Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		11.10%		14.60%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, Default Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		15.60%		23.80%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, Default Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		12.80%		19.70%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		10.30%		5.80%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		18.70%		14.30%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement Input, projected collateral recoveries [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		15.80%		10.60%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		32.00%		45.50%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		36.50%		51.00%
Valuation, Income Approach [Member] | Credit Default Swaps On Asset Backed Securities [Member] | Measurement input, projected collateral scheduled amortization [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		34.90%		47.30%
Valuation, Income Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 5,192,000		$ 5,693,000
Valuation, Income Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		12.90%		9.10%	[1]
Valuation, Income Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		16.10%		9.10%	[1]
Valuation, Income Approach [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Percent		15.40%		9.10%	[1]
Valuation, Income Approach [Member] | Other secured borrowings [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Liabilities, Fair Value Disclosure		$ (297,948,000)	[4]	$ (125,105,000)	[5]
Valuation, Income Approach [Member] | Other secured borrowings [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Debt Instrument, Measurement Input		3.90%	[4]	2.80%	[5]
Valuation, Income Approach [Member] | Other secured borrowings [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Debt Instrument, Measurement Input		4.40%	[4]	2.80%	[5]
Valuation, Income Approach [Member] | Other secured borrowings [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Debt Instrument, Measurement Input		4.30%	[4]	2.80%	[5]
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 27,317,000		$ 20,774,000
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		1.1	[8]	0.9	[9]
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		1.1	[8]	0.9	[9]
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		1.1	[8]	0.9	[9]
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 6,750,000		$ 2,814,000
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Minimum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		3.3	[8]	2.0	[9]
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Maximum [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		3.3	[8]	2.0	[9]
Enterprise Value [Member] | Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Weighted Average [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Investment Fair Value Measurement Input, Decimal Type		3.3	[8]	2.0	[9]
Transaction [Domain] | Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in loan origination entity [Member]
Fair Value Measurements Inputs and Valuation Techniques [Line Items]
Fair value		$ 3,000,000

[1] Represents the significant unobservable inputs used to fair value the financial instruments of the limited liability company. The fair value of such financial instruments is the largest component of the valuation of the limited liability company as a whole.

[2] Shown in basis points.

[3] Shown in basis points.

[4] Securitized residential mortgage loans and Other secured borrowings, at fair value, represent financial assets and liabilities of the Company's CFE as discussed in Note 2.

[5] Securitized residential mortgage loans and Other secured borrowings, at fair value, represent financial assets and liabilities of the Company's CFE as discussed in Note 2.

[6] Excludes certain loans that are re-performing.

[7] Excludes certain loans that are re-performing.

[8] Represent an estimation of where market participants might value an enterprise on a price-to-book basis.

[9] Represent an estimation of where market participants might value an enterprise on a price-to-book basis.