CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net Income	$ 271,291	$ 304,097
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation and amortization	56,806	56,914
Employee stock-based compensation expenses	20,070	8,845
Company stock 401(k) match contributions	10,216	10,226
Gain on investment sales	(153,626)	0
Equity loss in unconsolidated investments, net	604	520
Merger termination fee	0	(136,000)
Pension expense, net of employer contributions	436	2,655
Change in operating assets and liabilities, net of acquisitions:
Decrease in trade receivables	19,830	64,356
(Decrease) increase in accounts payable	(35,820)	2,576
Increase in interest and taxes payable	33,194	1,100
Increase in deferred revenue	50	861
Changes in other assets and liabilities, net	2,108	(8,665)
Net cash flow from operating activities	225,159	307,485
Cash flows from investing activities:
Purchase of property and equipment	(20,883)	(14,491)
Payments for acquisitions of businesses and assets, net of cash acquired	(52,799)	(1,150)
Payments for investments	(9,789)	(328)
Proceeds from investments	155,037	23
Proceeds from sale of assets	64	39
Net cash flow provided by (used for) investing activities	71,630	(15,907)
Cash flows from financing activities:
Repurchase of common stock	(154,699)	(300,000)
Dividends paid	(40,914)	(40,489)
Payments for financing costs	(6,448)	0
Other, net	(10,035)	(13,397)
Net cash flow used for financing activities	(212,096)	(353,886)
Increase (decrease) in cash and cash equivalents	84,693	(62,308)
Balance of cash and cash equivalents at beginning of period	361,036	551,681
Balance of cash and cash equivalents at end of period	445,729	489,373
Supplemental cash flow information:
Cash paid for income taxes, net of refunds	48,091	74,372
Cash paid for interest	$ 82,619	$ 83,058