Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 32,758	$ 45,971
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,208	5,302
Amortization of deferred sales commissions	551	996
Share-based compensation	12,693	14,768
Investments (gain) loss, net	(19,930)	3,070
Net purchases, maturities, and sales of trading and equity securities	(2,233)	(1,386)
Deferred income taxes	5,914	1,555
Net change in equity securities and trading debt securities held by consolidated sponsored funds	(5,081)	(2,415)
Other	(56)	1,079
Changes in assets and liabilities:
Customer and other receivables	72,892	25,026
Payable to investment companies for securities and payable to customers	(115,675)	(22,761)
Receivables from funds and separate accounts	(1,018)	979
Other assets	9,161	(12,162)
Accounts payable and payable to third party brokers	(3,026)	(3,324)
Other liabilities	(10,655)	(6,433)
Net cash (used in) provided by operating activities	(17,497)	50,265
Cash flows from investing activities:
Purchases of available for sale and equity method securities	(70,501)
Proceeds from sales of available for sale and equity method securities	19,667
Proceeds from maturities of available for sale securities	38,375	56,686
Additions to property and equipment	(1,474)	(414)
Net cash (used in) provided by investing activities	(13,933)	56,272
Cash flows from financing activities:
Dividends paid	(19,348)	(20,890)
Repurchase of common stock	(40,871)	(20,507)
Repayment of short-term debt, net of debt issuance costs		(94,978)
Net subscriptions (redemptions, distributions and deconsolidations) of redeemable noncontrolling interests in sponsored funds	768	4,427
Other	(62)
Net cash used in financing activities	(59,513)	(131,948)
Net decrease in cash and cash equivalents	(90,943)	(25,411)
Cash, cash equivalents, and restricted cash at beginning of period	291,555	235,985
Cash, cash equivalents, and restricted cash at end of period	$ 200,612	$ 210,574