Investments (Tables)

12 Months Ended

Dec. 31, 2017

Other Equity Method Investments [Member]

Schedule of Equity Method Investments [Line Items]

Schedule of Equity Method Investments

A summary of the Company's investments accounted for under the equity method of accounting as of December 31, 2017 and 2016 was as follows:

	December 31,
	2017		2016
G5	$	—	$	26,016
ABS	39,894		38,982
Atalanta Sosnoff	13,963		14,719
Luminis	5,999		—
Total	$	59,856	$	79,717

Private Equity Funds [Member]

Schedule of Equity Method Investments [Line Items]

Schedule of Equity Method Investments

A summary of the Company's investment in the private equity funds as of December 31, 2017 and 2016 was as follows:

	December 31,
	2017		2016
ECP II	$	833	$	933
Discovery Fund	—		7,463
Glisco II	5,747		6,897
Glisco III	811		529
Trilantic IV	305		211
Trilantic V	6,116		5,709
Total Private Equity Funds	$	13,812	$	21,742