Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue
Total revenue	$ 181,886	$ 91,360	$ 386,307	$ 178,839
Expenses
Personnel compensation and benefits	49,105	35,542	96,676	70,043
Distribution and other asset-based expenses	41,630	16,182	96,490	31,949
General and administrative	13,289	7,087	25,177	14,174
Depreciation and amortization	4,166	5,263	8,216	10,485
Change in value of consideration payable for acquisition of business	5,300	(14)	(200)	(14)
Acquisition-related costs	(23)	2,787	(92)	5,564
Restructuring and integration costs	2,605	1,788	3,603	1,788
Total operating expenses	116,072	68,635	229,870	133,989
Income from operations	65,814	22,725	156,437	44,850
Other (expense) income
Interest income and other (expense) income	2,966	656	(1,206)	2,489
Interest expense and other financing costs	(9,710)	(4,520)	(21,118)	(9,144)
Gain (loss) on debt extinguishment	137		(917)
Total other expense, net	(6,607)	(3,864)	(23,241)	(6,655)
Income before income taxes	59,207	18,861	133,196	38,195
Income tax expense	(14,487)	(4,478)	(31,310)	(9,285)
Net income	$ 44,720	$ 14,383	$ 101,886	$ 28,910
Earnings per share of common stock
Basic	$ 0.66	$ 0.21	$ 1.50	$ 0.43
Diluted	$ 0.61	$ 0.20	$ 1.38	$ 0.40
Weighted average number of shares outstanding
Basic	67,821	67,583	67,806	67,552
Diluted	73,204	73,521	73,818	72,962
Dividends declared per share of common stock	$ 0.05		$ 0.10
Investment Management Fees
Revenue
Total revenue	$ 130,032	$ 78,042	$ 276,913	$ 152,453
Fund Administration and Distribution Fees
Revenue
Total revenue	$ 51,854	$ 13,318	$ 109,394	$ 26,386