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Variable Interest Entities - Summary of Closed CLO Funds (Details) - Collateralized Loan Obligation Funds - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Jun. 20, 2017	Sep. 22, 2016	Jun. 02, 2016
Trinitas IV
Variable Interest Entity [Line Items]
Offering Amount				$ 406,650
Offering Date	Jun. 02, 2016
Trinitas V
Variable Interest Entity [Line Items]
Offering Amount			$ 409,000
Offering Date	Sep. 22, 2016
Trinitas VI
Variable Interest Entity [Line Items]
Offering Amount		$ 717,100
Offering Date	Jun. 20, 2017

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

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- Definition

Date the debt instrument was offered for sale, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
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-Section 50
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No definition available.

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