CONDENSED CONSOLIDATED STATEMENTS OF INCOME UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues
Total revenues	$ 74,336	$ 87,497
Expenses
Compensation	30,347	25,950
Management fee	1,449	4,634
Distribution costs	8,670	10,204
Other operating expenses	5,257	5,453
Total expenses	45,723	46,241
Operating income	28,613	41,256
Other income (expense)
Net gain (loss) from investments	(1,895)	(5,347)
Interest and dividend income	724	492
Interest expense	(655)	(1,200)
Total other expense, net	(1,826)	(6,055)
Income before income taxes	26,787	35,201
Income tax provision	6,895	7,940
Net income	$ 19,892	$ 27,261
Net income:
Basic (in dollars per share)	$ 0.70	$ 0.94
Diluted (in dollars per share)	$ 0.70	$ 0.94
Weighted average shares outstanding:
Basic (in shares)	28,507	28,916
Diluted (in shares)	28,539	28,916
Dividends declared: (in dollars per share)	$ 0.02	$ 0.02
Investment Advisory and Incentive Fees [Member]
Revenues
Total revenues	$ 65,888	$ 77,348
Distribution Fees and Other Income [Member]
Revenues
Total revenues	$ 8,448	$ 10,149