Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Operating activities:
Net income	$ 34,221		$ 29,191
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Depreciation and amortization of intangibles	6,634		8,798
Stock-based compensation expense	10,939	[1]	9,162	[1]
Excess tax benefits from stock-based compensation	(13,784)		(20,613)
Deferred taxes	(1,664)		(10,986)
Amortization of debt issue costs	509		595
Changes in assets and liabilities:
Fees receivable, net	39,695		25,744
Deferred commissions	3,665		3,065
Prepaid expenses and other current assets	(6,105)		(9,167)
Other assets	(2,141)		(1,344)
Deferred revenues	34,822		25,404
Accounts payable, accrued, and other liabilities	(88,112)		(84,512)
Cash provided (used) by operating activities	18,679		(24,663)
Investing activities:
Additions to property, equipment and leasehold improvements	(7,118)		(3,705)
Cash used in investing activities	(7,118)		(3,705)
Financing activities:
Proceeds from stock issued under stock plans	5,524		14,058
Proceeds from debt issuance	47,793		40,011
Payments on debt	(7,500)		(5,000)
Purchases of treasury stock	(77,157)		(51,896)
Excess tax benefits from stock-based compensation	13,784		20,613
Cash (used) provided by financing activities	(17,556)		17,786
Net decrease in cash and cash equivalents	(5,995)		(10,582)
Effects of exchange rates on cash and cash equivalents	2,241		(596)
Cash and cash equivalents, beginning of period	142,739		120,181
Cash and cash equivalents, end of period	$ 138,985		$ 109,003

[1] Includes charges of $3.0 million and $2.5 million for the three months ended March 31, 2012 and 2011 respectively, related to awards to retirement-eligible employees, since a portion of the awards vest immediately.