CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2026	Mar. 29, 2025
Cash flows from operating activities:
Net earnings	$ 108,024	$ 86,663
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	22,607	21,518
Contribution to defined benefit pension plan	(886)	(1,492)
Stock-based compensation	5,532	7,211
Net periodic pension cost	1,079	258
Loss on sale of property, plant, and equipment	106	18
Deferred income taxes	15,667	10,439
Other, net	(115)	560
Changes in assets and liabilities:
Receivables	(62,856)	(4,467)
Inventories	(19,832)	16,162
Contract assets	16,213	(10,242)
Prepaid expenses and other assets (current and non-current)	(18,423)	(3,683)
Accounts payable	18,837	(26,307)
Contract liabilities (current and non-current)	24,725	12,869
Accrued expenses	(21,942)	(54,183)
Current income taxes	15,055	9,383
Other non-current liabilities	(318)	423
Net cash flows from operating activities	103,473	65,130
Cash flows from investing activities:
Purchases of property, plant, and equipment	(34,568)	(30,319)
Acquisition, net of cash acquired	(11,195)
Proceeds from sales of assets	225	343
Proceeds from property damage insurance claims	605
Other, net	1,632	(215)
Net cash flows from investing activities	(43,301)	(30,191)
Cash flows from financing activities:
Proceeds from short-term borrowings		2,840
Repayments on short-term borrowings		(4,441)
Proceeds from long-term borrowings	50,000	60,000
Principal repayments on long-term borrowings	(55,555)	(60,174)
Dividends paid	(13,279)	(12,019)
Dividend to redeemable noncontrolling interest		(233)
Purchase of redeemable noncontrolling interest	(8,922)
Repurchases of common stock	(57,550)
Proceeds from exercises under stock plans	2,230	3,107
Tax withholdings on exercises under stock plans	(4,149)	(6,600)
Other, net		527
Net cash flows from financing activities	(87,225)	(16,993)
Effect of exchange rate changes on cash and cash equivalents	102	2,138
Net change in cash and cash equivalents	(26,951)	20,084
Cash and cash equivalents-beginning of period	187,140	164,315
Cash and cash equivalents-end of period	160,189	184,399
Supplemental disclosures of cash flow information:
Interest paid	925	225
Income taxes paid	$ 7,290	$ 10,672