Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
OPERATING ACTIVITIES
Net income	$ 216,620	$ 183,433
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	41,218	37,194
Deferred Income Taxes	(5,212)	0
Stock-based compensation	9,663	7,384
Loss on disposal of property, plant and equipment	2,262	1,081
Other non-cash adjustments	46	(169)
Changes in operating assets and liabilities:
Accounts receivable	(98,924)	(102,852)
Inventories	(80,847)	80,971
Prepaid expenses and other assets	1,266	4,376
Accounts payable	681	10,678
Accrued expenses and other liabilities	52,125	39,039
Income taxes receivable/payable	13,504	27,090
Net cash provided by operating activities	152,402	288,225
INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(151,481)	(112,920)
Proceeds from sales of property, plant and equipment	106	0
Net cash used in investing activities	(151,375)	(112,920)
FINANCING ACTIVITIES
Borrowings under line of credit	608,300	509,500
Principal payments under line of credit	(543,800)	(675,000)
Repurchases of common stock	(55,655)	(18,441)
Proceeds from employee stock purchase and option plans	1,007	925
Financing costs	0	30
Net cash provided by (used in) financing activities	9,852	(182,986)
Net increase (decrease) in cash and cash equivalents	10,879	(7,681)
Cash and cash equivalents, beginning of period	1,959	12,325
Cash and cash equivalents, end of period	12,838	4,644
Supplemental Disclosure:
Cash paid for interest, net of capitalized interest	0	4,165
Cash paid for income taxes, net	65,318	35,106
Supplemental non-cash investing and financing disclosure:
Capital expenditures in accounts payable and accrued expenses	35,300	1,183
Excise tax on repurchases of common stock	$ 402	$ 0