Debt (Debt Obligations of CLOs) (Details) (Notes Payable, USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Aggregate Principal amount		$ 777,923,000
Unamortized Discount		(206,171,000)
Carrying Amount		571,752,000
Telos 4 (maturity July 2024)
Debt Instrument [Line Items]
Maturity Date	Jul. 31, 2024	Jul. 31, 2024
Telos 3 (maturity October 2024)
Debt Instrument [Line Items]
Maturity Date	Oct. 31, 2024	Oct. 31, 2024
Telos 2 (maturity April 2022)
Debt Instrument [Line Items]
Maturity Date	Apr. 30, 2022	Apr. 30, 2022
Telos 2 (maturity April 2022) | Class A-1
Debt Instrument [Line Items]
Aggregate Principal amount		241,000,000
Spread over three Months LIBOR		0.26%
Unamortized Discount		(33,980,000)
Carrying Amount		207,020,000
Telos 2 (maturity April 2022) | Class A-2
Debt Instrument [Line Items]
Aggregate Principal amount		40,000,000
Spread over three Months LIBOR		0.40%
Unamortized Discount		(9,592,000)
Carrying Amount		30,408,000
Telos 2 (maturity April 2022) | Class B
Debt Instrument [Line Items]
Aggregate Principal amount		27,500,000
Spread over three Months LIBOR		0.55%
Unamortized Discount		(8,248,000)
Carrying Amount		19,252,000
Telos 2 (maturity April 2022) | Class C
Debt Instrument [Line Items]
Aggregate Principal amount		22,000,000
Spread over three Months LIBOR		0.95%
Unamortized Discount		(10,223,000)
Carrying Amount		11,777,000
Telos 2 (maturity April 2022) | Class D
Debt Instrument [Line Items]
Aggregate Principal amount		22,000,000
Spread over three Months LIBOR		2.20%
Unamortized Discount		(12,633,000)
Carrying Amount		9,367,000
Telos 2 (maturity April 2022) | Class E
Debt Instrument [Line Items]
Aggregate Principal amount		16,000,000
Spread over three Months LIBOR		5.00%
Unamortized Discount		(13,340,000)
Carrying Amount		2,660,000
Telos 2 (maturity April 2022) | Subordinated
Debt Instrument [Line Items]
Aggregate Principal amount		2,000,000
Unamortized Discount		(1,719,000)
Carrying Amount		281,000
Telos 1 (maturity October 2021)
Debt Instrument [Line Items]
Maturity Date	Oct. 31, 2021	Oct. 31, 2021
Telos 1 (maturity October 2021) | Class A-1D
Debt Instrument [Line Items]
Aggregate Principal amount		80,000,000
Spread over three Months LIBOR		0.27%
Unamortized Discount		(11,097,000)
Carrying Amount		68,903,000
Telos 1 (maturity October 2021) | Class A-1R
Debt Instrument [Line Items]
Aggregate Principal amount		30,000,000
Spread over three Months LIBOR		0.29%
Unamortized Discount		(4,163,000)
Carrying Amount		25,837,000
Telos 1 (maturity October 2021) | Class A-1T
Debt Instrument [Line Items]
Aggregate Principal amount		110,000,000
Spread over three Months LIBOR		0.27%
Unamortized Discount		(15,258,000)
Carrying Amount		94,742,000
Telos 1 (maturity October 2021) | Class A-2
Debt Instrument [Line Items]
Aggregate Principal amount		60,000,000
Spread over three Months LIBOR		0.40%
Unamortized Discount		(14,163,000)
Carrying Amount		45,837,000
Telos 1 (maturity October 2021) | Class B
Debt Instrument [Line Items]
Aggregate Principal amount		27,200,000
Spread over three Months LIBOR		0.49%
Unamortized Discount		(8,026,000)
Carrying Amount		19,174,000
Telos 1 (maturity October 2021) | Class C
Debt Instrument [Line Items]
Aggregate Principal amount		22,000,000
Spread over three Months LIBOR		0.85%
Unamortized Discount		(10,065,000)
Carrying Amount		11,935,000
Telos 1 (maturity October 2021) | Class D
Debt Instrument [Line Items]
Aggregate Principal amount		22,000,000
Spread over three Months LIBOR		1.70%
Unamortized Discount		(12,371,000)
Carrying Amount		9,629,000
Telos 1 (maturity October 2021) | Class E
Debt Instrument [Line Items]
Aggregate Principal amount		16,000,000
Spread over three Months LIBOR		4.25%
Unamortized Discount		(13,148,000)
Carrying Amount		2,852,000
Telos 1 (maturity October 2021) | Subordinated
Debt Instrument [Line Items]
Aggregate Principal amount		40,223,000
Unamortized Discount		(28,145,000)
Carrying Amount		12,078,000
Primary beneficiary
Debt Instrument [Line Items]
Aggregate Principal amount	1,341,701,000
Unamortized Discount	(187,604,000)
Carrying Amount	1,154,097,000
Primary beneficiary | Telos 4 (maturity July 2024) | Class A
Debt Instrument [Line Items]
Aggregate Principal amount	214,000,000
Variable interest rate (as a percent)	1.30%
Unamortized Discount	(962,000)
Carrying Amount	213,038,000
Primary beneficiary | Telos 4 (maturity July 2024) | Class B
Debt Instrument [Line Items]
Aggregate Principal amount	46,500,000
Variable interest rate (as a percent)	1.80%
Unamortized Discount	(2,066,000)
Carrying Amount	44,434,000
Primary beneficiary | Telos 4 (maturity July 2024) | Class C
Debt Instrument [Line Items]
Aggregate Principal amount	29,000,000
Variable interest rate (as a percent)	2.75%
Unamortized Discount	(1,401,000)
Carrying Amount	27,599,000
Primary beneficiary | Telos 4 (maturity July 2024) | Class D
Debt Instrument [Line Items]
Aggregate Principal amount	19,250,000
Variable interest rate (as a percent)	3.50%
Unamortized Discount	(1,562,000)
Carrying Amount	17,688,000
Primary beneficiary | Telos 4 (maturity July 2024) | Class E
Debt Instrument [Line Items]
Aggregate Principal amount	16,000,000
Variable interest rate (as a percent)	5.00%
Unamortized Discount	(1,976,000)
Carrying Amount	14,024,000
Primary beneficiary | Telos 4 (maturity July 2024) | Class X
Debt Instrument [Line Items]
Aggregate Principal amount	3,500,000
Variable interest rate (as a percent)	0.95%
Unamortized Discount	0
Carrying Amount	3,500,000
Primary beneficiary | Telos 4 (maturity July 2024) | Subordinated
Debt Instrument [Line Items]
Aggregate Principal amount	10,700,000
Unamortized Discount	(516,000)
Carrying Amount	10,184,000
Primary beneficiary | Telos 3 (maturity October 2024) | Class A
Debt Instrument [Line Items]
Aggregate Principal amount	225,000,000
Variable interest rate (as a percent)	1.42%
Unamortized Discount	0
Carrying Amount	225,000,000
Primary beneficiary | Telos 3 (maturity October 2024) | Class B
Debt Instrument [Line Items]
Aggregate Principal amount	36,500,000
Variable interest rate (as a percent)	2.25%
Unamortized Discount	0
Carrying Amount	36,500,000
Primary beneficiary | Telos 3 (maturity October 2024) | Class C
Debt Instrument [Line Items]
Aggregate Principal amount	26,500,000
Variable interest rate (as a percent)	3.00%
Unamortized Discount	(570,000)
Carrying Amount	25,930,000
Primary beneficiary | Telos 3 (maturity October 2024) | Class D
Debt Instrument [Line Items]
Aggregate Principal amount	18,000,000
Variable interest rate (as a percent)	4.25%
Unamortized Discount	(822,000)
Carrying Amount	17,178,000
Primary beneficiary | Telos 3 (maturity October 2024) | Class E
Debt Instrument [Line Items]
Aggregate Principal amount	15,000,000
Variable interest rate (as a percent)	5.50%
Unamortized Discount	(1,512,000)
Carrying Amount	13,488,000
Primary beneficiary | Telos 3 (maturity October 2024) | Class F
Debt Instrument [Line Items]
Aggregate Principal amount	6,000,000
Variable interest rate (as a percent)	5.50%
Unamortized Discount	(743,000)
Carrying Amount	5,257,000
Primary beneficiary | Telos 3 (maturity October 2024) | Subordinated
Debt Instrument [Line Items]
Aggregate Principal amount	29,000,000
Unamortized Discount	(1,322,000)
Carrying Amount	27,678,000
Primary beneficiary | Telos 2 (maturity April 2022) | Class A-1
Debt Instrument [Line Items]
Aggregate Principal amount	221,836,000
Variable interest rate (as a percent)	0.26%
Unamortized Discount	(28,216,000)
Carrying Amount	193,620,000
Primary beneficiary | Telos 2 (maturity April 2022) | Class A-2
Debt Instrument [Line Items]
Aggregate Principal amount	40,000,000
Variable interest rate (as a percent)	0.40%
Unamortized Discount	(8,717,000)
Carrying Amount	31,283,000
Primary beneficiary | Telos 2 (maturity April 2022) | Class B
Debt Instrument [Line Items]
Aggregate Principal amount	27,500,000
Variable interest rate (as a percent)	0.55%
Unamortized Discount	(7,532,000)
Carrying Amount	19,968,000
Primary beneficiary | Telos 2 (maturity April 2022) | Class C
Debt Instrument [Line Items]
Aggregate Principal amount	22,000,000
Variable interest rate (as a percent)	0.95%
Unamortized Discount	(9,473,000)
Carrying Amount	12,527,000
Primary beneficiary | Telos 2 (maturity April 2022) | Class D
Debt Instrument [Line Items]
Aggregate Principal amount	22,000,000
Variable interest rate (as a percent)	2.20%
Unamortized Discount	(11,900,000)
Carrying Amount	10,100,000
Primary beneficiary | Telos 2 (maturity April 2022) | Class E
Debt Instrument [Line Items]
Aggregate Principal amount	16,000,000
Variable interest rate (as a percent)	5.00%
Unamortized Discount	(13,155,000)
Carrying Amount	2,845,000
Primary beneficiary | Telos 2 (maturity April 2022) | Subordinated
Debt Instrument [Line Items]
Aggregate Principal amount	2,000,000
Unamortized Discount	(1,654,000)
Carrying Amount	346,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class A-1D
Debt Instrument [Line Items]
Aggregate Principal amount	39,270,000
Variable interest rate (as a percent)	0.27%
Unamortized Discount	(4,867,000)
Carrying Amount	34,403,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class A-1R
Debt Instrument [Line Items]
Aggregate Principal amount	14,726,000
Variable interest rate (as a percent)	0.29%
Unamortized Discount	(1,826,000)
Carrying Amount	12,900,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class A-1T
Debt Instrument [Line Items]
Aggregate Principal amount	53,996,000
Variable interest rate (as a percent)	0.27%
Unamortized Discount	(6,693,000)
Carrying Amount	47,303,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class A-2
Debt Instrument [Line Items]
Aggregate Principal amount	60,000,000
Variable interest rate (as a percent)	0.40%
Unamortized Discount	(12,781,000)
Carrying Amount	47,219,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class B
Debt Instrument [Line Items]
Aggregate Principal amount	27,200,000
Variable interest rate (as a percent)	0.49%
Unamortized Discount	(7,277,000)
Carrying Amount	19,923,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class C
Debt Instrument [Line Items]
Aggregate Principal amount	22,000,000
Variable interest rate (as a percent)	0.85%
Unamortized Discount	(9,261,000)
Carrying Amount	12,739,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class D
Debt Instrument [Line Items]
Aggregate Principal amount	22,000,000
Variable interest rate (as a percent)	1.70%
Unamortized Discount	(11,548,000)
Carrying Amount	10,452,000
Primary beneficiary | Telos 1 (maturity October 2021) | Class E
Debt Instrument [Line Items]
Aggregate Principal amount	16,000,000
Variable interest rate (as a percent)	4.25%
Unamortized Discount	(12,861,000)
Carrying Amount	3,139,000
Primary beneficiary | Telos 1 (maturity October 2021) | Subordinated
Debt Instrument [Line Items]
Aggregate Principal amount	40,223,000
Unamortized Discount	(26,391,000)
Carrying Amount	$ 13,832,000