Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
OPERATING ACTIVITIES
Net income	$ 176,068	$ 118,167
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	27,606	24,198
Deferred Income Taxes	(5,212)	0
Stock-based compensation	6,992	4,562
Loss on disposal of property, plant and equipment	2,262	1,081
Other non-cash adjustments	243	(388)
Changes in operating assets and liabilities:
Accounts receivable	(228,901)	(168,751)
Inventories	(41,769)	67,348
Prepaid expenses and other assets	(850)	2,046
Accounts payable	35,768	13,816
Accrued expenses and other liabilities	28,688	20,686
Income taxes receivable/payable	18,746	25,016
Net cash provided by operating activities	19,641	107,781
INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(73,202)	(82,357)
Proceeds from sales of property, plant and equipment	106	0
Net cash used in investing activities	(73,096)	(82,357)
FINANCING ACTIVITIES
Borrowings under line of credit	438,300	330,000
Principal payments under line of credit	(380,800)	(346,000)
Repurchases of common stock	(5,570)	(18,192)
Proceeds from employee stock purchase and option plans	738	639
Financing costs	0	30
Net cash provided by (used in) financing activities	52,668	(33,523)
Net decrease in cash and cash equivalents	(787)	(8,099)
Cash and cash equivalents, beginning of period	1,959	12,325
Cash and cash equivalents, end of period	1,172	4,226
Supplemental Disclosure:
Cash paid for interest, net of capitalized interest	0	2,602
Cash paid for income taxes, net	46,320	15,348
Supplemental non-cash investing and financing disclosure:
Capital expenditures in accounts payable and accrued expenses	$ 21,169	$ 1,523