Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets:
Cash and cash equivalents	$ 426,643	$ 328,027
Cash and cash equivalents - restricted	101,919	92,980
Investment securities	196,100	176,142
Receivables:
Funds and separate accounts	33,833	33,886
Customers and other	110,572	136,073
Deferred income taxes	5,599	7,978
Income taxes receivable		5,577
Prepaid expenses and other current assets	9,819	9,080
Assets of discontinued operations held for sale		15,150
Total current assets	884,485	804,893
Property and equipment, net	70,349	69,328
Deferred sales commissions, net	76,250	69,355
Goodwill and identifiable intangible assets	161,969	161,969
Deferred income taxes	25,876	17,797
Other non-current assets	13,181	11,491
Assets of discontinued operations held for sale		18,010
Total assets	1,232,110	1,152,843
Liabilities:
Accounts payable	16,345	23,795
Payable to investment companies for securities	142,361	152,749
Payable to third party brokers	57,353	46,169
Payable to customers	27,474	45,182
Accrued compensation	64,211	46,347
Other current liabilities	41,802	43,504
Income taxes payable	2,077
Liabilities of discontinued operations held for sale		7,587
Total current liabilities	351,623	365,333
Long-term debt	190,000	190,000
Accrued pension and postretirement costs	51,992	62,458
Other non-current liabilities	26,141	24,531
Liabilities of discontinued operations held for sale		281
Total liabilities	619,756	642,603
Commitments and contingencies
Stockholders' equity:
Preferred stock-$1.00 par value: 5,000 shares authorized; none issued
Class A Common stock-$0.01 par value: 250,000 shares authorized; 99,701 shares issued; 85,417 shares outstanding (85,679 at December 31, 2012)	997	997
Additional paid-in capital	251,284	230,021
Retained earnings	800,634	698,423
Cost of 14,284 common shares in treasury (14,022 at December 31, 2012)	(400,026)	(372,404)
Accumulated other comprehensive loss	(40,535)	(46,797)
Total stockholders' equity	612,354	510,240
Total liabilities and stockholders' equity	$ 1,232,110	$ 1,152,843