Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 238,793	$ 277,977
Cash restricted or segregated under regulations and other	13,562	40,353
Deposits with clearing organizations	81,056	62,556
Securities owned, at fair value	1,747	2,557
Receivables from brokers, dealers and clearing organizations	207,598	152,294
Receivables from customers	93,825	54,486
Premises and equipment, net	56,698	59,333
Capitalized software, net	40,641	38,606
Goodwill	10,962	10,102
Intangibles, net	14,291	15,390
Income taxes receivable	2,738	873
Deferred taxes assets	4,663	38,688
Other assets	27,471	22,070
Total assets	794,045	775,285
Liabilities:
Accounts payable and accrued expenses	158,931	174,343
Short-term bank loans	101,996	72,150
Payables to brokers, dealers and clearing organizations	106,628	100,188
Payables to customers	44,125	12,272
Securities sold, not yet purchased, at fair value	42	249
Income taxes payable	5,211	4,552
Deferred tax liabilities	2,448
Term debt	2,404	6,367
Total liabilities	421,785	370,121
Commitments and contingencies
Stockholders' Equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.01 par value; 100,000,000 shares authorized; 52,605,650 and 52,456,165 shares issued at September 30, 2017 and December 31, 2016, respectively	526	525
Additional paid-in capital	245,669	248,748
Retained earnings	491,683	536,350
Common stock held in treasury, at cost; 19,546,278 and 19,830,032 shares at September 30, 2017 and December 31, 2016, respectively	(343,834)	(346,482)
Accumulated other comprehensive loss (net of tax)	(21,784)	(33,977)
Total stockholders' equity	372,260	405,164
Total liabilities and stockholders' equity	$ 794,045	$ 775,285