CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash Flows from Operating Activities:
Net income	$ 633,125	$ 408,375	$ 430,158
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense from property, plant and equipment and financing leases	170,343	153,472	147,962
Amortization of intangible assets and deferred proceeds, net	23,448	23,494	23,628
Fair value adjustment of acquisition related contingent consideration	59,166	159,354	32,301
Loss on sale of property, plant and equipment	3,168	7,181	5,642
Deferred income taxes	2,529	(49,021)	8,977
Amortization of debt costs	2,310	991	1,012
Pension plan settlement expense	0	112,796	0
Deferred payroll taxes under CARES Act	0	0	(18,739)
Change in current assets less current liabilities	(3,774)	29,138	(74,784)
Change in other noncurrent assets	8,904	12,708	31,779
Change in other noncurrent liabilities	(22,862)	(47,798)	(33,430)
Total adjustments	243,232	402,315	124,348
Net cash provided by operating activities	876,357	810,690	554,506
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(371,015)	(282,304)	(298,611)
Purchases of short-term investments	(446,309)	0	0
Proceeds from the disposal of short-term investments	150,274	0	0
Investment in equity method investees	(15,720)	(13,741)	(3,094)
Proceeds from the sale of property, plant and equipment	569	695	7,369
Acquisition of distribution rights	0	0	(30,649)
Net cash used in investing activities	(682,201)	(295,350)	(324,985)
Cash Flows from Financing Activities:
Proceeds from bond issuance	1,200,000	0	0
Payments related to share repurchases	(625,654)	0	0
Cash dividends paid	(185,635)	(46,868)	(9,374)
Payments of acquisition related contingent consideration	(64,312)	(28,208)	(36,515)
Debt issuance fees	(15,512)	(340)	(310)
Payments on financing lease obligations	(2,488)	(2,303)	(2,988)
Payments on term loan facility and senior notes	0	0	(125,000)
Net cash provided by (used in) financing activities	306,399	(77,719)	(174,187)
Net increase in cash	500,555	437,621	55,334
Cash at beginning of year	635,269	197,648	142,314
Cash at end of year	$ 1,135,824	$ 635,269	$ 197,648