Investments (Tables)

3 Months Ended

Mar. 31, 2017

Investments Schedule [Abstract]

Summary of Investments

At March 31, 2017 and December 31, 2016 the Company's investments were as follows:

	March 31, 2017		December 31, 2016
($ in thousands)
Marketable securities	$	70,595	$	74,907
Equity method investments	8,360		7,731
Nonqualified retirement plan assets	6,186		5,808
Other investments	925		925
Total investments	$	86,066	$	89,371

Schedule of Marketable Securities

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

March 31, 2017

	Cost		Unrealized Loss			Unrealized Gain		Fair Value
($ in thousands)
Trading:
Sponsored mutual funds	$	57,071	$	(2,185	)	$	112	$	54,998
Equity securities	10,705		—			1,269		11,974
Available-for-sale:
Sponsored closed-end funds	3,566		(247		)	304		3,623
Total marketable securities	$	71,342	$	(2,432	)	$	1,685	$	70,595

December 31, 2016

	Cost		Unrealized Loss			Unrealized Gain		Fair Value
($ in thousands)
Trading:
Sponsored mutual funds	$	61,784	$	(1,942	)	$	177	$	60,019
Equity securities	10,578		—			895		11,473
Available-for-sale:
Sponsored closed-end funds	3,500		(265		)	180		3,415
Total marketable securities	$	75,862	$	(2,207	)	$	1,252	$	74,907