Valuation (Schedule Of Significant Unobservable Inputs, Qualitative Information) (Details) - Level 3 [Member]		9 Months Ended		12 Months Ended
		Sep. 30, 2017 USD ($)		Dec. 31, 2016 USD ($)
Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 23,182,000		$ 47,024,000
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		46.28		2.00
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		478.10		101.02
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		95.08		67.51
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 24,586,000		$ 37,517,000
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Non Binding Third-Party Valuation		3.10		9.42
Market Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Non Binding Third-Party Valuation		440.00		100.25
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		122.21		83.36
Market Approach Valuation Technique [Member] | Corporate Debt and non-exchange traded corporate equity [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 9,782,000		$ 19,017,000
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		0.88		1.88
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		99.50		102.25
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		81.87		87.14
Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 7,721,000		$ 27,283,000
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		5.36		5.17
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		42.00		77.75
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		18.18		40.88
Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 502,000		$ 23,322,000
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		16.89		2.47
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		18.44		20.17
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		17.85		11.65
Market Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 5,588,000
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	[1]	100.00
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	[1]	100.00
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	[1]	100.00
Income Approach Valuation Technique [Member] | Corporate debt and warrants [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value				$ 10,080,000
Income Approach Valuation Technique [Member] | Corporate debt and warrants [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield				19.70%
Income Approach Valuation Technique [Member] | Corporate debt and warrants [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield				19.70%
Income Approach Valuation Technique [Member] | Corporate debt and warrants [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield				19.70%
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 50,466,000		$ 43,059,000
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		1.70%		0.60%
Projected Collateral Prepayments		2.50%		0.00%
Fair Value Inputs Losses		1.30%		1.40%
Fair Value Inputs Projected Collateral Recoveries		0.00%		0.40%
Fair Value Inputs Projected Collateral Scheduled Amortization		12.90%		0.00%
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		25.60%		20.50%
Projected Collateral Prepayments		84.60%		81.00%
Fair Value Inputs Losses		18.20%		51.20%
Fair Value Inputs Projected Collateral Recoveries		13.90%		53.60%
Fair Value Inputs Projected Collateral Scheduled Amortization		90.70%		90.70%
Income Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		9.80%		11.00%
Projected Collateral Prepayments		44.00%		10.00%
Fair Value Inputs Losses		9.00%		41.40%
Fair Value Inputs Projected Collateral Recoveries		6.40%		41.20%
Fair Value Inputs Projected Collateral Scheduled Amortization		40.60%		7.40%
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		$ 2,332,000		$ 7,439,000
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		11.20%		11.20%
Projected Collateral Prepayments		67.80%		11.40%
Fair Value Inputs Losses		18.80%		4.50%
Fair Value Inputs Projected Collateral Recoveries		7.80%		1.50%
Fair Value Inputs Projected Collateral Scheduled Amortization		0.00%		29.80%
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		58.70%		50.30%
Projected Collateral Prepayments		68.70%		55.20%
Fair Value Inputs Losses		21.00%		28.30%
Fair Value Inputs Projected Collateral Recoveries		12.50%		27.20%
Fair Value Inputs Projected Collateral Scheduled Amortization		3.50%		51.50%
Income Approach Valuation Technique [Member] | Collateralized Loan Obligations [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		26.90%		20.50%
Projected Collateral Prepayments		68.40%		45.50%
Fair Value Inputs Losses		19.50%		10.70%
Fair Value Inputs Projected Collateral Recoveries		10.90%		8.60%
Fair Value Inputs Projected Collateral Scheduled Amortization		1.20%		35.20%
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		$ 7,194,000
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		8.70%
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		15.00%
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 3,911,000		$ 15,985,000
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		9.10%		8.80%
Fair Value Inputs Losses		0.10%		0.10%
Fair Value Inputs Projected Collateral Recoveries		1.30%		0.90%
Fair Value Inputs Projected Collateral Scheduled Amortization		80.10%		77.80%
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		50.10%		57.00%
Fair Value Inputs Losses		5.10%		5.30%
Fair Value Inputs Projected Collateral Recoveries		14.80%		20.50%
Fair Value Inputs Projected Collateral Scheduled Amortization		98.60%		99.00%
Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		23.10%		23.60%
Fair Value Inputs Losses		2.20%		2.20%
Fair Value Inputs Projected Collateral Recoveries		8.00%		10.70%
Fair Value Inputs Projected Collateral Scheduled Amortization		89.80%		87.10%
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		$ 5,317,000		$ 6,300,000
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		8.70%		0.00%	[2]
Fair Value Inputs Projected Collateral Scheduled Amortization		0.00%		0.00%
LIBOR OAS		4.23%	[3]	1.42%	[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%	[2]
Fair Value Inputs Projected Collateral Scheduled Amortization		91.30%		88.10%
LIBOR OAS		19.50%	[3]	28.31%	[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		71.30%		63.60%	[2]
Fair Value Inputs Projected Collateral Scheduled Amortization		28.70%		36.40%
Total Outstanding Collateral		100.00%		100.00%
LIBOR OAS		7.29%	[3]	5.68%	[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		$ 116,340,000		$ 107,157,000	[2]
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		9.00%		9.00%	[2]
Projected Collateral Prepayments		0.00%		0.00%	[2]
Fair Value Inputs Losses		0.00%		3.30%	[2]
Fair Value Inputs Projected Collateral Scheduled Amortization		5.00%		0.00%	[2]
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		18.40%		25.00%	[2]
Projected Collateral Prepayments		51.40%		45.40%	[2]
Fair Value Inputs Losses		95.00%		97.40%	[2]
Fair Value Inputs Projected Collateral Scheduled Amortization		100.00%		87.70%	[2]
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		10.30%		11.00%	[2]
Projected Collateral Prepayments		36.50%		25.60%	[2]
Fair Value Inputs Losses		7.20%		9.40%	[2]
Fair Value Inputs Projected Collateral Scheduled Amortization		56.30%		65.00%	[2]
Total Outstanding Collateral		100.00%		100.00%	[2]
Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 61,339,000		$ 32,557,000
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		15.40%		17.20%
Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		11.10%		11.60%
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 153,709,000		$ 78,576,000
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		1.60%		5.00%
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		24.70%		13.50%
Income Approach Valuation Technique [Member] | Performing Residential Mortgage Loans [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield		6.20%		6.60%
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		$ 9,940,000		$ 7,413,000
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		0.70%		5.80%
Months to Resolution		3 months	[5]	1 month 24 days
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		42.90%		39.90%
Months to Resolution		34 months 3 days	[5]	162 months 27 days
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		11.30%		9.70%
Months to Resolution		12 months 18 days	[5]	41 months 27 days
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		$ 31,632,000		$ 30,222,000
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		4.50%		10.20%
Months to Resolution		3 months		3 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		23.20%		27.80%
Months to Resolution		12 months		39 months 3 days
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		12.90%		16.30%
Months to Resolution		8 months 22 days		19 months 15 days
Income Approach Valuation Technique [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 5,857,000
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	[1]	9.00%
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	[1]	9.00%
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	[1]	9.00%
Credit Default Swaps On Asset Backed Securities [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 4,323,000		$ 5,070,000
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		19.60%		19.30%
Fair Value Inputs Losses		14.40%		15.30%
Fair Value Inputs Projected Collateral Recoveries		5.60%		4.70%
Fair Value Inputs Projected Collateral Scheduled Amortization		44.20%		43.20%
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		26.60%		29.80%
Fair Value Inputs Losses		24.60%		27.60%
Fair Value Inputs Projected Collateral Recoveries		15.10%		15.30%
Fair Value Inputs Projected Collateral Scheduled Amortization		53.30%		50.20%
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		22.70%		22.70%
Fair Value Inputs Losses		21.30%		22.20%
Fair Value Inputs Projected Collateral Recoveries		9.50%		8.70%
Fair Value Inputs Projected Collateral Scheduled Amortization		46.50%		46.40%
Total Outstanding Collateral		100.00%		100.00%
Total Return Swaps [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure				$ (94,000)
Total Return Swaps [Member] | Market Approach Valuation Technique [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Non Binding Third-Party Valuation	[6]			98.25
Total Return Swaps [Member] | Market Approach Valuation Technique [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Non Binding Third-Party Valuation	[6]			99.50
Total Return Swaps [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Non Binding Third-Party Valuation	[6]			98.77
Corporate Equity Investments [Member] | Non-exchange traded equity investments in commercial mortgage-related private partnerships [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value				$ 3,090,000
Corporate Equity Investments [Member] | Non-exchange traded equity investments in commercial mortgage-related private partnerships [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield				16.50%
Fair Value Assumptions, Expected Term				2 months 27 days
Corporate Equity Investments [Member] | Non-exchange traded equity investments in commercial mortgage-related private partnerships [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield				16.50%
Fair Value Assumptions, Expected Term				2 months 27 days
Corporate Equity Investments [Member] | Non-exchange traded equity investments in commercial mortgage-related private partnerships [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield				16.50%
Fair Value Assumptions, Expected Term				2 months 27 days
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
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	[7]	1.8
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	[7]	1.8
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	[7]	1.8
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred and Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value				$ 2,500,000
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred and Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Equity Multiple	[8]			1.3
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred and Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Equity Multiple	[8]			1.3
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred and Common Equity Investment in Mortgage-Related Entities [Member] | Enterprise Value [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Equity Multiple	[8]			1.3
Corporate Equity Investments [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	[2]			$ 7,315,000
Corporate Equity Investments [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	[2]			8.50%
Corporate Equity Investments [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	[2]			8.50%
Corporate Equity Investments [Member] | Non-Controlling Equity Interest in Limited Liability Company [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	[2]			8.50%
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		$ 19,000,000
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	[7]	1.0
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	[7]	1.0
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	[7]	1.0
Corporate Equity Investments [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage-Related Entities [Member] | Recent Transactions [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value				$ 12,500,000

[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] Conformed to current period presentation.

[3] Shown in basis points.

[4] Shown in basis points.

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

[6] Represents valuations on underlying assets.

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

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