Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets:
Cash and cash equivalents	$ 390,497	$ 328,027
Cash and cash equivalents - restricted	154,631	92,980
Investment securities	175,608	176,142
Receivables:
Funds and separate accounts	43,119	33,886
Customers and other	96,528	136,073
Deferred income taxes	4,063	7,978
Income taxes receivable		5,577
Prepaid expenses and other current assets	9,723	9,080
Assets of discontinued operations held for sale		15,150
Total current assets	874,169	804,893
Property and equipment, net	69,140	69,328
Deferred sales commissions, net	71,861	69,355
Goodwill and identifiable intangible assets	161,969	161,969
Deferred income taxes	20,892	17,797
Other non-current assets	14,591	11,491
Assets of discontinued operations held for sale		18,010
Total assets	1,212,622	1,152,843
Liabilities:
Accounts payable	15,780	23,795
Payable to investment companies for securities	189,579	152,749
Payable to third party brokers	52,857	46,169
Payable to customers	25,271	45,182
Accrued compensation	32,070	32,215
Accrued other compensation	12,803	14,132
Other current liabilities	43,039	43,504
Current income taxes	19,711
Liabilities of discontinued operations held for sale		7,587
Total current liabilities	391,110	365,333
Long-term debt	190,000	190,000
Accrued pension and postretirement costs	54,943	62,458
Other non-current liabilities	23,676	24,531
Liabilities of discontinued operations held for sale		281
Total liabilities	659,729	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; 85,544 shares outstanding (85,679 at December 31, 2012)	997	997
Additional paid-in capital	243,806	230,021
Retained earnings	728,351	698,423
Cost of 14,157 common shares in treasury (14,022 at December 31, 2012)	(377,088)	(372,404)
Accumulated other comprehensive loss	(43,173)	(46,797)
Total stockholders' equity	552,893	510,240
Total liabilities and stockholders' equity	$ 1,212,622	$ 1,152,843