CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 24, 2022	Sep. 25, 2021
Cash flows from operating activities:
Net earnings	$ 213,043	$ 169,911
Adjustments to reconcile net earnings to net cash flows from operations:
Depreciation and amortization	72,803	67,764
Stock-based compensation	29,998	17,895
Defined benefit pension plan benefit	(7,597)	(11,051)
Contribution to defined benefit pension plan	(17,155)	(970)
Loss (gain) on sale of property, plant and equipment	790	(1,250)
Equity in loss in nonconsolidated subsidiaries	931	1,079
Deferred income taxes	(2,780)	(8,747)
Changes in assets and liabilities:
Receivables	(60,450)	(30,709)
Inventories	(31,143)	(211,273)
Prepaid expenses and other assets (current and non-current)	6,738	(21,589)
Contract assets	(76,887)	(33,199)
Accounts payable	37,787	76,916
Accrued expenses	10,904	15,523
Contract liabilities	(10,051)	6,768
Other noncurrent liabilities	(9,312)	10,228
Income taxes payable/refundable	26,107	14,533
Net cash flows from operating activities	183,726	61,829
Acquisitions, net of cash acquired	(39,287)	(312,500)
Cash flows from investing activities:
Purchase of property, plant and equipment	(67,122)	(80,509)
Proceeds from sale of assets	71	1,655
Other, net	(108)	1,891
Net cash flows from investing activities	(106,446)	(389,463)
Cash flows from financing activities:
Proceeds from short-term borrowings	4,137	3,191
Payments on short-term borrowings	(12,366)	(23,654)
Proceeds from long-term borrowings	235,470	236,710
Principal payments on long-term borrowings	(251,155)	(66,128)
Settlement of financial derivatives	2,243	0
Dividends paid	(34,080)	(30,794)
Purchase of noncontrolling interest	(7,338)	0
Purchase of treasury shares	(20,491)	(24,101)
Proceeds from exercises under stock plans	8,778	22,747
Purchase of common treasury shares-stock plan exercises	(4,341)	(16,955)
Net cash flows from financing activities	(79,143)	101,016
Effect of exchange rate changes on cash and cash equivalents	(9,148)	(4,313)
Net change in cash and cash equivalents	(11,011)	(230,931)
Cash and cash equivalents-beginning of year	177,232	400,726
Cash and cash equivalents-end of period	$ 166,221	$ 169,795