Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 3,274	$ 42,312	$ 31,334
Non-cash items included in net income:
Depreciation and amortization	4,358	4,792	3,951
Net investment (gains) losses	18	(372)	495
Restricted stock units recognized, net	30,588	31,110	31,950
Allowance for doubtful accounts	(401)	359	263
Deferred taxes, net	(10,471)	13,908	(8)
Loss (gain) on disposals of property and equipment	52	9	267
Changes in operating assets and liabilities:
Tenant incentive reimbursement from landlord	0	2,193	9,663
Fees receivable	11,619	29,021	(3,578)
Other receivables and assets	2,224	(4,420)	(2,162)
Compensation payable	(13,557)	6,416	6,412
Accounts payable and accrued expenses	39	6,314	9,042
Current income taxes payable	(211)	(958)	(3,623)
Net cash provided by operating activities	27,532	130,684	84,006
Investing activities:
Purchases of investments	0	0	(2,050)
Proceeds from sales of investments	0	1,190	847
Distributions from investments, net	0	32	81
Purchases of property and equipment	(6,786)	(4,770)	(17,015)
Net cash used in investing activities	(6,786)	(3,548)	(18,137)
Financing activities:
Repayment of secured term loan	0	(55,000)	(38,750)
Dividends paid	(8,926)	(4,353)	(4,108)
Purchase of treasury stock	(39,936)	(45,121)	(23,257)
Net cash used in financing activities	(48,862)	(104,474)	(66,115)
Effect of exchange rate changes	(2,172)	(741)	(1,026)
Net increase (decrease) in cash and cash equivalents	(30,288)	21,921	(1,272)
Cash and cash equivalents, beginning of year	134,624	112,703	113,975
Cash and cash equivalents, end of year	104,336	134,624	112,703
Supplemental disclosure of cash flow information:
Cash paid for interest	13,542	10,417	14,386
Cash paid for taxes, net of refunds	$ 6,279	$ 1,424	$ 13,515