CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities
Net income	$ 40,417	$ 22,321
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	20,706	20,840
Amortization of right of use asset	2,221	2,490
Stock-based compensation expense	15,856	10,900
Change in long-term retirement benefit obligations	(5,758)	(6,954)
Other – net	(1,026)	83
Changes in operating assets and liabilities:
Accounts receivable – net	64,832	51,556
Other assets	2,360	(2,295)
Accounts payable, accrued payroll and other liabilities	(93,067)	(57,103)
Unexpired subscriptions	5,438	7,645
Other noncurrent assets and liabilities	1,100	1,247
Net cash provided by operating activities	53,079	50,730
Cash flows from investing activities
Purchases of marketable securities	(112,892)	0
Maturities of marketable securities	52,374	28,160
Capital expenditures	(6,424)	(5,985)
Other – net	551	0
Net cash (used in)/provided by investing activities	(66,391)	22,175
Long-term obligations:
Dividends paid	(18,621)	(15,069)
Payment of contingent consideration	0	(1,724)
Capital shares:
Repurchases	(32,458)	(30,720)
Share-based compensation tax withholding	(17,605)	(11,017)
Net cash used in financing activities	(68,684)	(58,530)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(81,996)	14,375
Effect of exchange rate changes on cash	(480)	(262)
Cash, cash equivalents and restricted cash at the beginning of the period	303,172	235,173
Cash, cash equivalents and restricted cash at the end of the period	$ 220,696	$ 249,286