Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Total revenue	$ 612,373	$ 413,412	$ 409,629
Expenses
Personnel compensation and benefits	179,809	145,880	144,111
Distribution and other asset-based expenses	146,622	94,680	103,439
General and administrative	46,568	30,005	33,996
Depreciation and amortization	23,873	23,277	29,910
Change in value of consideration payable for acquisition of business	19,886	(37)	(294)
Acquisition-related costs	22,317	4,346	2,094
Restructuring and integration costs	8,678	742	6,205
Total operating expenses	447,753	298,893	319,461
Income from operations	164,620	114,519	90,168
Other income (expense)
Interest income and other income (expense)	6,829	(2,856)	(2,913)
Interest expense and other financing costs	(40,901)	(20,694)	(48,467)
Loss on debt extinguishment	(9,860)	(6,058)	(330)
Total other expense, net	(43,932)	(29,608)	(51,710)
Income before income taxes	120,688	84,911	38,458
Income tax expense	(28,197)	(21,207)	(12,632)
Net income	$ 92,491	$ 63,704	$ 25,826
Earnings per share of common stock
Basic	$ 1.37	$ 0.96	$ 0.47
Diluted	$ 1.26	$ 0.90	$ 0.43
Weighted average number of shares outstanding
Basic	67,616	66,295	54,931
Diluted	73,466	70,511	59,577
Dividends declared per share of common stock	$ 0.10		$ 2.42
Investment Management Fees
Revenue
Total revenue	$ 466,802	$ 352,683	$ 343,811
Fund Administration and Distribution Fees
Revenue
Total revenue	$ 145,571	$ 60,729	$ 65,818