Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 245,449	$ 277,977
Cash restricted or segregated under regulations and other	13,487	40,353
Deposits with clearing organizations	57,418	62,556
Securities owned, at fair value	2,150	2,557
Receivables from brokers, dealers and clearing organizations	279,358	152,294
Receivables from customers	95,131	54,486
Premises and equipment, net	58,144	59,333
Capitalized software, net	39,301	38,606
Goodwill	10,220	10,102
Intangibles, net	15,075	15,390
Income taxes receivable	670	873
Deferred taxes	43,169	38,688
Other assets	25,084	22,070
Total assets	884,656	775,285
Liabilities:
Accounts payable and accrued expenses	135,416	174,343
Short-term bank loans	129,737	72,150
Payables to brokers, dealers and clearing organizations	184,533	100,188
Payables to customers	22,660	12,272
Securities sold, not yet purchased, at fair value		249
Income taxes payable	4,284	4,552
Term debt	4,802	6,367
Total liabilities	481,432	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; 52,565,272 and 52,456,165 shares issued at March 31, 2017 and December 31, 2016, respectively	526	525
Additional paid-in capital	236,995	248,748
Retained earnings	538,678	536,350
Common stock held in treasury, at cost; 19,420,086 and 19,830,032 shares at March 31, 2017 and December 31, 2016, respectively	(341,024)	(346,482)
Accumulated other comprehensive loss (net of tax)	(31,951)	(33,977)
Total stockholders' equity	403,224	405,164
Total liabilities and stockholders' equity	$ 884,656	$ 775,285