Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating activities:
Net income	$ 210,939	$ 210,545
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	50,760	49,307
Stock-based compensation expense	50,168	50,500
Deferred taxes	(29,710)	(17,823)
Loss on impairment of lease related assets	0	527
Reduction in the carrying amount of operating lease right-of-use assets	17,736	16,028
Amortization and write-off of deferred financing fees	1,034	1,537
Gain on de-designated swaps	(165)	(4,462)
Changes in assets and liabilities, net of acquisitions and divestitures:
Fees receivable, net	211,612	18,228
Deferred commissions	41,131	26,413
Prepaid expenses and other current assets	(5,338)	(47,509)
Other assets	(15,568)	(24,309)
Deferred revenues	131,001	173,542
Accounts payable and accrued and other liabilities	(350,088)	(263,688)
Cash provided by operating activities	313,512	188,836
Investing activities:
Additions to property, equipment and leasehold improvements	(25,569)	(22,660)
Acquisition of business	0	(2,000)
Cash used in investing activities	(25,569)	(24,660)
Financing activities:
Proceeds from employee stock purchase plan	9,736	8,047
Payments of deferred financing fees	0	(2,604)
Proceeds from revolving credit facility	0	274,400
Payments on long-term debt	0	(274,400)
Purchases of treasury stock	(162,672)	(225,124)
Cash used in financing activities	(152,936)	(219,681)
Net increase (decrease) in cash and cash equivalents and restricted cash	135,007	(55,505)
Effects of exchange rates on cash and cash equivalents	22,894	(27,693)
Cash and cash equivalents and restricted cash, beginning of period	1,933,147	1,319,599
Cash and cash equivalents, end of period	$ 2,091,048	$ 1,236,401