Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 20,464	$ 32,758
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	3,168	6,208
Amortization of deferred sales commissions	395	551
Share-based compensation	9,983	12,693
Investments and derivatives loss (gain), net of collateral	50,012	(16,481)
Net purchases, maturities, and sales of trading and equity securities	(2,144)	(2,233)
Deferred income taxes	(12,071)	5,914
Net change in equity securities and trading debt securities held by consolidated sponsored funds	1,326	(5,081)
Other	212	(56)
Changes in assets and liabilities:
Customer and other receivables	6,804	77,039
Payable to investment companies for securities and payable to customers	(29,763)	(115,675)
Receivables from funds and separate accounts	3,023	(1,018)
Other assets	3,214	4,193
Accounts payable and payable to third party brokers	(3,219)	(3,466)
Other liabilities	(22,128)	(12,843)
Net cash provided by (used in) operating activities	29,276	(17,497)
Cash flows from investing activities:
Purchases of available for sale and equity method securities	(2,999)	(70,501)
Proceeds from sales of available for sale and equity method securities		19,667
Proceeds from maturities of available for sale securities	33,875	38,375
Additions to property and equipment	(3,182)	(1,474)
Net cash provided by (used in) investing activities	27,694	(13,933)
Cash flows from financing activities:
Dividends paid	(17,119)	(19,348)
Repurchase of common stock	(53,599)	(40,871)
Net subscriptions (redemptions, distributions and deconsolidations) of redeemable noncontrolling interests in sponsored funds	1,387	768
Other	(40)	(62)
Net cash used in financing activities	(69,371)	(59,513)
Net decrease in cash, cash equivalents and restricted cash	(12,401)	(90,943)
Cash, cash equivalents, and restricted cash at beginning of period	226,140	291,555
Cash, cash equivalents, and restricted cash at end of period	$ 213,739	$ 200,612