Related Party Transactions - Sound Point Capital LLC (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jul. 31, 2012 shares	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 06, 2013 general_partner
Related Party Transaction [Line Items]
Redeemable noncontrolling interest	$ 439,656			$ 439,656		$ 417,663	$ 374,619
Other investments, at fair value	936,158			936,158		1,034,032
Equities, trading, at fair value	117,293			117,293		115,941
Net realized and unrealized gains (losses)	37,987	$ (11,249)		75,951	$ 31,771
Other investments	(5,305)	$ 11,056		(9,270)	34,618
CLO equities
Related Party Transaction [Line Items]
Other investments, at fair value	$ 65,156			$ 65,156		61,702
Trident | Affiliated Entity
Related Party Transaction [Line Items]
Related party transaction, shares acquired | shares			1,350,000
Percentage of Company's voting ordinary shares acquired	8.30%			8.30%
Number of newly elected board of directors | general_partner								1
Number of general partners | general_partner								4
Shareholders' agreement period				90 days
Redeemable noncontrolling interest, redemption period one (years)				5 years
Redeemable noncontrolling interest	$ 439,700			$ 439,700		417,700
Redeemable noncontrolling interest, redemption period two (years)				7 years
Other investments, at fair value	190,100			$ 190,100		237,900
Equities, trading, at fair value	21,200			21,200		21,000
Trident | Affiliated Entity | Fund Investments
Related Party Transaction [Line Items]
Net realized and unrealized gains (losses)				5,800	5,500
Trident | Affiliated Entity | Registered Investment Companies
Related Party Transaction [Line Items]
Net realized and unrealized gains (losses)				(500)	200
Interest income, related party				1,300	1,300
Eagle Point Credit and PRIMA Capital Advisors | Affiliated Entity
Related Party Transaction [Line Items]
Separate account assets	237,900			237,900		157,800
Eagle Point Credit and PRIMA Capital Advisors | Affiliated Entity | Management Fee
Related Party Transaction [Line Items]
Related party fees				200	100
Sound Point Capital | Affiliated Entity
Related Party Transaction [Line Items]
Other investments, at fair value	24,100			24,100		34,500
Separate account assets	56,800			56,800		53,500
Other investments				700	1,600
Sound Point Capital | Affiliated Entity | CLO equities
Related Party Transaction [Line Items]
Other investments, at fair value	$ 18,800			18,800		$ 18,200
Interest income, related party				3,600	900
Other investments				700	(700)
Sound Point Capital | Affiliated Entity | Management Fee
Related Party Transaction [Line Items]
Related party fees				$ 100	$ 100