v3.10.0.1
Valuation (Schedule Of Significant Unobservable Inputs, Qualitative Information) (Details) - Level 3 [Member]
 6 Months Ended 12 Months Ended
Jun. 30, 2018
USD ($)
Dec. 31, 2017
USD ($)
Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 31,830,000 $ 40,870,000
Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 3.50 45.00
Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 172.06 183.00
Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 81.00 81.63
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value   $ 10,288,000
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation   85.00
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation   435.00
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation   138.94
Market Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 4,402,000 $ 6,797,000
Market Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 8.50 8.88
Market Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 99.75 105.63
Market Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 73.32 82.94
Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 6,641,000 $ 7,577,000
Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 5.18 5.31
Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 95.27 60.55
Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 86.02 36.19
Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 609,000 $ 1,225,000
Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 3.71 10.14
Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 4.98 18.21
Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 4.35 15.25
Market Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 5,284,000 $ 5,033,000
Market Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 97.47 [1] 96.91 [2]
Market Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 97.47 [1] 96.91 [2]
Market Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Non Binding Third-Party Valuation 97.47 [1] 96.91 [2]
Income Approach Valuation Technique [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 17,032,000  
Income Approach Valuation Technique [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 14.30%  
Income Approach Valuation Technique [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 15.00%  
Income Approach Valuation Technique [Member] | Corporate debt, non-exchange traded corporate equity, and secured notes [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 14.80%  
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 64,566,000 $ 60,427,000
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 3.00% 0.50%
Projected Collateral Prepayments 1.40% 2.10%
Fair Value Inputs Losses 0.50% 0.90%
Fair Value Inputs Projected Collateral Recoveries 0.00% 0.30%
Fair Value Inputs Projected Collateral Scheduled Amortization 9.50% 12.50%
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 40.00% 26.50%
Projected Collateral Prepayments 89.20% 84.70%
Fair Value Inputs Losses 20.00% 18.20%
Fair Value Inputs Projected Collateral Recoveries 13.90% 31.50%
Fair Value Inputs Projected Collateral Scheduled Amortization 92.00% 90.20%
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 8.50% 9.80%
Projected Collateral Prepayments 46.50% 38.30%
Fair Value Inputs Losses 9.10% 8.60%
Fair Value Inputs Projected Collateral Recoveries 7.30% 11.30%
Fair Value Inputs Projected Collateral Scheduled Amortization 37.10% 41.80%
Total Outstanding Collateral 100.00% 100.00%
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 6,109,000 $ 14,623,000
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 8.30% 7.10%
Projected Collateral Prepayments 7.90% 22.50%
Fair Value Inputs Losses 1.80% 1.90%
Fair Value Inputs Projected Collateral Recoveries 3.10% 3.40%
Fair Value Inputs Projected Collateral Scheduled Amortization 0.00% 0.00%
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 90.30% 62.20%
Projected Collateral Prepayments 91.20% 92.90%
Fair Value Inputs Losses 48.20% 40.20%
Fair Value Inputs Projected Collateral Recoveries 43.90% 37.20%
Fair Value Inputs Projected Collateral Scheduled Amortization 3.70% 4.10%
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 25.40% 15.20%
Projected Collateral Prepayments 65.30% 77.90%
Fair Value Inputs Losses 20.00% 10.30%
Fair Value Inputs Projected Collateral Recoveries 13.90% 9.50%
Fair Value Inputs Projected Collateral Scheduled Amortization 0.80% 2.30%
Total Outstanding Collateral 100.00% 100.00%
Income Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value   $ 20,301,000
Income Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield   3.00%
Income Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield   16.10%
Income Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield   10.60%
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 2,120,000 $ 4,770,000
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 6.70% 4.30%
Projected Collateral Prepayments 0.00%  
Fair Value Inputs Losses 2.90% 1.10%
Fair Value Inputs Projected Collateral Recoveries 6.80% 2.80%
Fair Value Inputs Projected Collateral Scheduled Amortization 86.30% 80.10%
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 35.50% 42.50%
Projected Collateral Prepayments 0.00%  
Fair Value Inputs Losses 3.00% 5.20%
Fair Value Inputs Projected Collateral Recoveries 10.90% 17.10%
Fair Value Inputs Projected Collateral Scheduled Amortization 90.20% 96.10%
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 23.00% 18.60%
Projected Collateral Prepayments 0.00%  
Fair Value Inputs Losses 2.90% 2.50%
Fair Value Inputs Projected Collateral Recoveries 9.30% 8.50%
Fair Value Inputs Projected Collateral Scheduled Amortization 87.80% 89.00%
Total Outstanding Collateral 100.00% 100.00%
Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 5,280,000 $ 4,948,000
Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Projected Collateral Prepayments 48.00% 51.20%
Fair Value Inputs Projected Collateral Scheduled Amortization 0.00% 0.00%
LIBOR OAS 0.70% [3] 3.81% [4]
Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Projected Collateral Prepayments 100.00% 100.00%
Fair Value Inputs Projected Collateral Scheduled Amortization 52.00% 48.80%
LIBOR OAS 35.21% [3] 35.21% [4]
Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Projected Collateral Prepayments 63.70% 69.10%
Fair Value Inputs Projected Collateral Scheduled Amortization 36.30% 30.90%
Total Outstanding Collateral 100.00% 100.00%
LIBOR OAS 6.13% [3] 7.30% [4]
Income Approach Valuation Technique [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 199,254,000 $ 135,258,000
Income Approach Valuation Technique [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 7.00% 7.00%
Projected Collateral Prepayments 1.30% 2.20%
Fair Value Inputs Losses 2.90% 0.40%
Fair Value Inputs Projected Collateral Scheduled Amortization 47.40% 46.80%
Income Approach Valuation Technique [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 21.80% 18.90%
Projected Collateral Prepayments 49.10% 50.10%
Fair Value Inputs Losses 40.90% 28.60%
Fair Value Inputs Projected Collateral Scheduled Amortization 90.90% 95.20%
Income Approach Valuation Technique [Member] | Consumer loans and asset-backed securities backed by consumer loans [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 9.20% 9.50%
Projected Collateral Prepayments 36.50% 33.50%
Fair Value Inputs Losses 8.50% 8.20%
Fair Value Inputs Projected Collateral Scheduled Amortization 55.00% 58.30%
Total Outstanding Collateral 100.00% 100.00%
Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 98,126,000 $ 84,377,000
Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 8.00% 8.00%
Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 17.10% 15.40%
Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 10.90% 10.70%
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 173,871,000 $ 42,030,000
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 3.60% 1.60%
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 11.90% 18.80%
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 5.70% 6.20%
Income Approach Valuation Technique [Member] | Securitized Residential Mortgage Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 107,856,000 [5] $ 132,424,000 [6]
Income Approach Valuation Technique [Member] | Securitized Residential Mortgage Loans [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 5.10% [5] 3.50% [6]
Income Approach Valuation Technique [Member] | Securitized Residential Mortgage Loans [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 5.10% [5] 3.50% [6]
Income Approach Valuation Technique [Member] | Securitized Residential Mortgage Loans [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 5.10% [5] 3.50% [6]
Income Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 7,203,000 $ 5,693,000
Income Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 9.80% [1] 9.10% [2]
Income Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 12.70% [1] 9.10% [2]
Income Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 10.30% [1] 9.10% [2]
Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 40,270,000 $ 49,610,000
Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 11.50% 11.40%
Months to Resolution 6 months 4 months
Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 18.50% 36.50%
Months to Resolution 11 months 17 months
Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans and Commercial Real Estate Owned [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 14.30% 17.70%
Months to Resolution 7 months 13 days 9 months 15 days
Income Approach Valuation Technique [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 12,639,000 $ 8,609,000
Income Approach Valuation Technique [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 4.40% 2.80%
Months to Resolution 4 months 27 days [7] 1 month 27 days [8]
Income Approach Valuation Technique [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 45.80% 34.50%
Months to Resolution 57 months 9 days [7] 40 months 15 days [8]
Income Approach Valuation Technique [Member] | Non-performing Residential Mortgage Loans and Residential Real Estate Owned [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 9.10% 8.90%
Months to Resolution 31 months 21 days [7] 25 months 18 days [8]
Credit Default Swaps On Asset Backed Securities [Member] | Income Approach Valuation Technique [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 2,591,000 $ 3,140,000
Credit Default Swaps On Asset Backed Securities [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Projected Collateral Prepayments 20.10% 19.80%
Fair Value Inputs Losses 13.10% 14.60%
Fair Value Inputs Projected Collateral Recoveries 6.10% 5.80%
Fair Value Inputs Projected Collateral Scheduled Amortization 45.90% 45.50%
Credit Default Swaps On Asset Backed Securities [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Projected Collateral Prepayments 27.60% 26.50%
Fair Value Inputs Losses 24.60% 23.80%
Fair Value Inputs Projected Collateral Recoveries 14.80% 14.30%
Fair Value Inputs Projected Collateral Scheduled Amortization 52.80% 51.00%
Credit Default Swaps On Asset Backed Securities [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Projected Collateral Prepayments 22.90% 22.40%
Fair Value Inputs Losses 18.80% 19.70%
Fair Value Inputs Projected Collateral Recoveries 9.80% 10.60%
Fair Value Inputs Projected Collateral Scheduled Amortization 48.50% 47.30%
Total Outstanding Collateral 100.00% 100.00%
Other secured borrowings [Member] | Income Approach Valuation Technique [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Liabilities, Fair Value Disclosure, Recurring $ (101,100,000) [5] $ (125,105,000) [6]
Other secured borrowings [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 3.90% [5] 2.80% [6]
Other secured borrowings [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 3.90% [5] 2.80% [6]
Other secured borrowings [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Yield 3.90% [5] 2.80% [6]
Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 2,814,000 $ 2,814,000
Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Equity Multiple 1.8 [9] 2.0 [10]
Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Equity Multiple 1.8 [9] 2.0 [10]
Corporate Equity Investments [Member] | Non-Exchange Traded Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Equity Multiple 1.8 [9] 2.0 [10]
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair value $ 28,009,000 $ 20,774,000
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Equity Multiple 1.0 [9] 0.9 [10]
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Equity Multiple 1.0 [9] 0.9 [10]
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Equity Multiple 1.0 [9] 0.9 [10]
[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] 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.
[3] Shown in basis points.
[4] Shown in basis points.
[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] 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.
[7] Excludes certain loans that are re-performing.
[8] Excludes certain loans that are re-performing.
[9] Represent an estimation of where market participants might value an enterprise on a price-to-book basis.
[10] Represent an estimation of where market participants might value an enterprise on a price-to-book basis.