CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024
Cash flows from operating activities:
Net earnings	$ 184,464	$ 272,189
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	65,429	70,541
Contribution to defined benefit pension plan	(3,155)	(19,539)
Impairment of long-lived assets	91,337	0
Stock-based compensation	19,396	21,665
Net periodic pension cost	800	482
Loss on sale of property, plant, and equipment	119	474
Equity in loss of nonconsolidated subsidiaries	602	60
Deferred income taxes	4,996	(15,959)
Changes in assets and liabilities:
Receivables	60,067	(65,013)
Inventories	12,568	44,041
Contract assets	(42,238)	(7,310)
Prepaid expenses and other assets (current and non-current)	14,284	(6,955)
Accounts payable	(6,731)	(3,728)
Contract liabilities (current and non-current)	(51,590)	66,227
Accrued expenses	(11,483)	(6,413)
Income taxes payable	1,649	23,766
Other non-current liabilities	4,729	4,736
Net cash flows from operating activities	345,243	379,264
Cash flows from investing activities:
Purchases of property, plant, and equipment	(104,230)	(53,833)
Proceeds from sales of assets	1,562	383
Proceeds from property damage insurance claims	772	0
Other, net	(2,415)	(1,649)
Net cash flows from investing activities	(104,311)	(55,099)
Cash flows from financing activities:
Proceeds from short-term borrowings	2,840	7,436
Repayments on short-term borrowings	(4,492)	(9,335)
Proceeds from long-term borrowings	130,000	30,009
Principal repayments on long-term borrowings	(130,531)	(240,522)
Proceeds from settlement of financial derivatives		2,711
Dividends paid	(39,085)	(36,337)
Dividends to redeemable noncontrolling interests	(698)	(664)
Purchases of redeemable noncontrolling interests	(14,624)	(17,745)
Repurchases of common stock	(125,839)	(55,069)
Proceeds from exercises under stock plans	6,354	4,567
Tax withholdings on exercises under stock plans	(8,265)	(8,492)
Other, net	(1,829)	(2,436)
Net cash flows from financing activities	(186,169)	(325,877)
Effect of exchange rate changes on cash and cash equivalents	7,029	(852)
Net change in cash and cash equivalents	61,792	(2,564)
Cash and cash equivalents-beginning of period	164,315	203,041
Cash and cash equivalents-end of period	226,107	200,477
Supplemental disclosures of cash flow information:
Interest paid	19,724	35,973
Income taxes paid	$ 68,143	$ 84,548