CLOs and Consolidated Variable Interest Entities (Narrative) (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended				3 Months Ended								3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended									3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Telos Asset Management LLC obligation	Dec. 31, 2013 Telos Asset Management LLC	Sep. 25, 2013 Telos Asset Management LLC	Aug. 06, 2013 Telos Asset Management LLC	Mar. 31, 2014 Telos 1 [Member]	Mar. 31, 2014 Telos 2 [Member]	Mar. 31, 2014 Telos 3 [Member]	Mar. 31, 2014 Telos 4 [Member]	Mar. 31, 2014 Variable Interest Entity, Primary Beneficiary Telos Asset Management LLC	Dec. 31, 2013 Variable Interest Entity, Primary Beneficiary Telos Asset Management LLC	Mar. 31, 2014 Variable Interest Entity, Primary Beneficiary Notes Payable	Dec. 31, 2013 Variable Interest Entity, Primary Beneficiary Notes Payable	Mar. 31, 2014 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class B Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class C Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class E Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class X Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class X Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Mar. 31, 2014 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Subordinated Debt [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class F Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class F Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A-1 Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A-1 Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A-2 Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A-2 Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2007-2, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A-2 Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A-2 Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A-1D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A-1D Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A-1R Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A-1R Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A-1T Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A-1T Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2006-1, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-4, Ltd. [Member]	Mar. 31, 2014 Notes Payable, Class A Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]	Dec. 31, 2013 Notes Payable, Class A Note [Member] Variable Interest Entity, Primary Beneficiary Notes Payable Telos CLO 2013-3, Ltd. [Member]
Variable Interest Entity [Line Items]
Aggregate principal amount													$ 1,306,962	$ 1,341,701	$ 46,500	$ 46,500	$ 36,500	$ 36,500	$ 27,500	$ 27,500	$ 27,200	$ 27,200	$ 29,000	$ 29,000	$ 26,500	$ 26,500	$ 22,000	$ 22,000	$ 22,000	$ 22,000	$ 19,250	$ 19,250	$ 18,000	$ 18,000	$ 22,000	$ 22,000	$ 22,000	$ 22,000	$ 16,000	$ 16,000	$ 15,000	$ 15,000	$ 16,000	$ 16,000	$ 16,000	$ 16,000	$ 3,500	$ 3,500	$ 10,700	$ 10,700	$ 34,350	$ 29,000	$ 2,000	$ 2,000	$ 40,223	$ 40,223	$ 6,000	$ 6,000	$ 193,442	$ 221,836	$ 40,000	$ 40,000	$ 60,000	$ 60,000	$ 35,017	$ 39,270	$ 13,131	$ 14,726	$ 48,149	$ 53,996	$ 214,000	$ 214,000	$ 225,000	$ 225,000
Number of CLOs (in obligations)			4
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage							7.11%	95.45%	0.00%	71.08%
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net			33,842	38,459
Collateralized Loan Obligation, Advisory Fee Receivable			3,122	3,616
Warehouse agreement, amount					140,000	100,000
Collateralized Loan Obligation, Investments in Loans, Fair Value			192,940
Collateralized Loan Obligation, Warehouse Loan			139,150
Investments in partially-owned entities	8,566	9,972	45,000
Variable interest rate (as a percent)															1.80%	1.80%	2.25%	2.25%	0.55%	0.55%	0.49%	0.49%	2.75%	2.75%	3.00%	3.00%	0.95%	0.95%	0.85%	0.85%	3.50%	3.50%	4.25%	4.25%	2.20%	2.20%	1.70%	1.70%	5.00%	5.00%	5.50%	5.50%	5.00%	5.00%	4.25%	4.25%	0.95%	0.95%									5.50%	5.50%	0.26%	0.26%	0.40%	0.40%	0.40%	0.40%	0.27%	0.27%	0.29%	0.29%	0.27%	0.27%	1.30%	1.30%	1.42%	1.42%
Debt Instrument, Unamortized Discount													178,849	187,604	2,021	2,066	0	0	7,346	7,532	7,083	7,277	1,372	1,401	559	570	9,273	9,473	9,048	9,261	1,532	1,562	806	822	11,699	11,900	11,324	11,548	1,942	1,976	1,486	1,512	13,095	13,155	12,772	12,861	0	0	504	516	1,385	1,322	1,634	1,654	25,892	26,391	731	743	23,909	28,216	8,491	8,717	12,426	12,781	4,210	4,867	1,579	1,826	5,790	6,693	940	962	0	0
Notes payable											1,128,113	1,154,097	1,128,113	1,154,097	44,479	44,434	36,500	36,500	20,154	19,968	20,117	19,923	27,628	27,599	25,941	25,930	12,727	12,527	12,952	12,739	17,718	17,688	17,194	17,178	10,301	10,100	10,676	10,452	14,058	14,024	13,514	13,488	2,905	2,845	3,228	3,139	3,500	3,500	10,196	10,184	32,965	27,678	366	346	14,331	13,832	5,269	5,257	169,533	193,620	31,509	31,283	47,574	47,219	30,807	34,403	11,552	12,900	42,359	47,303	213,060	213,038	225,000	225,000
initial equity investment amount				35,000
additional equity investment amount			$ 10,000