CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities
Net income	$ 170,100	$ 122,510
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	61,865	64,173
Amortization of right of use asset	6,773	7,184
Stock-based compensation expense	49,880	38,716
Multiemployer pension plan liability adjustment	0	(2,273)
Impairment charges	0	15,239
Change in long-term retirement benefit obligations	(18,110)	(21,339)
Contingent consideration fair value adjustment	294	2,813
Other – net	(4,493)	(2,839)
Changes in operating assets and liabilities:
Accounts receivable – net	53,541	53,494
Other assets	7,035	9
Accounts payable, accrued payroll and other liabilities	(77,094)	(59,698)
Unexpired subscriptions	4,443	690
Other noncurrent assets and liabilities	4,582	5,421
Net cash provided by operating activities	258,816	224,100
Cash flows from investing activities
Purchases of marketable securities	(337,107)	(186,018)
Maturities of marketable securities	159,464	100,515
Capital expenditures	(21,115)	(16,539)
Other – net	1,299	4,754
Net cash used in investing activities	(197,459)	(97,288)
Long-term obligations:
Dividends paid	(61,500)	(51,360)
Payment of contingent consideration	(1,724)	(2,586)
Capital shares:
Repurchases	(60,341)	(43,591)
Share-based compensation tax withholding	(21,076)	(14,279)
Net cash used in financing activities	(144,641)	(111,816)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(83,284)	14,996
Effect of exchange rate changes on cash	(1,025)	(310)
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	$ 218,863	$ 249,859