Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net income (loss)	$ 28,098	$ (413)
Non-cash items included in net income (loss):
Depreciation and amortization	3,898	2,323
Net investment losses	283	265
Restricted stock units recognized, net	26,538	31,740
Deferred taxes, net	6,029	(2,816)
Loss (gain) on fair value of contingent obligation	4,022	(5,639)
Loss (gain) on sales of property and equipment	(777)	0
Changes in operating assets and liabilities:
Advisory fees receivable	(22,523)	13,798
Other receivables and assets	(5,429)	(947)
Compensation payable	15,077	(19,424)
Accounts payable and accrued expenses	(3,186)	191
Current income taxes payable	3,575	(13,482)
Net cash provided by operating activities	55,605	5,596
Investing activities:
Distributions from investments	149	222
Purchases of property and equipment	(1,738)	(1,674)
Sales of property and equipment	1,357	0
Net cash used in investing activities	(232)	(1,452)
Financing activities:
Proceeds from revolving bank loan	0	69,355
Repayment of revolving bank loan	0	(49,650)
Repayment of bank term loans	0	(16,875)
Repayment of secured term loan	(13,125)	0
Dividends paid	(3,995)	(46,190)
Purchase of treasury stock	(177,786)	(13,040)
Net cash used in financing activities	(194,906)	(56,400)
Effect of exchange rate changes	(2,717)	4,818
Net decrease in cash and cash equivalents	(142,250)	(47,438)
Cash and cash equivalents, beginning of the period	267,646	98,313
Cash and cash equivalents, end of the period	125,396	50,875
Supplemental disclosure of cash flow information:
Cash paid for interest	16,480	2,469
Cash paid for taxes, net of refunds	$ 3,870	$ 18,538