Investments (Tables)

6 Months Ended

Jun. 30, 2018

Investments Schedule [Abstract]

Summary of Investments

At June 30, 2018 and December 31, 2017, the Company's investments were as follows:

	June 30, 2018		December 31, 2017
($ in thousands)
Marketable securities	$	61,401	$	66,424
Equity method investments	12,230		11,098
Nonqualified retirement plan assets	6,909		6,706
Investments in collateralized loan obligations	5,744		23,339
Other investments	925		925
Total investments	$	87,209	$	108,492

Schedule of Marketable Securities

The composition of the Company’s marketable securities is summarized as follows:

June 30, 2018

	Cost		Unrealized Loss			Unrealized Gain		Fair Value
($ in thousands)
Marketable securities:
Sponsored funds	$	40,235	$	(895	)	$	1,333	$	40,673
Equity securities	14,018		(10		)	3,000		17,008
Sponsored closed-end funds	3,778		(360		)	302		3,720
Total marketable securities	$	58,031	$	(1,265	)	$	4,635	$	61,401

December 31, 2017

	Cost		Unrealized Loss			Unrealized Gain		Fair Value
($ in thousands)
Marketable securities:
Sponsored funds	$	47,084	$	(1,294	)	$	1,059	$	46,849
Equity securities	13,141		(2		)	2,671		15,810
Sponsored closed-end funds	3,761		(302		)	306		3,765
Total marketable securities	$	63,986	$	(1,598	)	$	4,036	$	66,424