CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended			44 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015	Dec. 30, 2017
Cash flows from operating activities:
Net earnings	$ 122,319	$ 178,391	$ 45,333
Adjustments to reconcile net earnings to net cash flows from operations:
Depreciation and amortization	84,957	82,417	91,144
Noncash loss on trading securities	237	586	4,555
Non-cash after-tax loss on deconsolidation	12,568	(13,652)	0
Impairment of Property Plant and Equipment	0	1,099	19,836
Impairment of assets - restructuring activities	12,568
Impairment of goodwill & intangible assets	0	0	41,970
Stock-based compensation	10,706	9,931	7,244
Change in fair value of contingent consideration	0	(3,242)	0
Defined benefit pension plan expense (benefit)	648	1,870	(610)
Contribution to defined benefit pension plan	(40,245)	(1,488)	(16,500)
(Gain) loss on sale of property, plant and equipment	(3,924)	631	2,327
Equity in earnings in nonconsolidated subsidiaries	0	0	247
Deferred income taxes	39,755	(23,685)	4,858
Changes in assets and liabilities (net of acquisitions):
Receivables	(49,112)	24,622	50,267
Inventories	(57,442)	(11,461)	3,296
Prepaid expenses	(6,038)	1,138	10,844
Accounts payable	39,405	104	(6,805)
Accrued expenses	(1,998)	(12,207)	8,918
Other noncurrent liabilities	(7,228)	(23,880)	(1,764)
Income taxes payable (refundable)	1,108	7,994	7,107
Net cash flows from operating activities	145,716	219,168	272,267
Cash flows from investing activities:
Purchase of property, plant and equipment	(55,266)	(57,920)	(45,468)
Proceeds from sale of assets	8,185	5,126	3,249
Acquisitions, net of cash acquired	(5,362)	0	(12,778)
Proceeds from settlement of net investment hedge	5,123	0	0
Other, net	(2,295)	(255)	6,826
Net cash flows used in investing activities	(49,615)	(53,049)	(48,171)
Cash flows from financing activities:
Payments under short-term agreements	(585)	(200)	(12,853)
Proceeds from long-term borrowings	0	0	68,000
Principal payments on long-term borrowings	(887)	(2,006)	(69,098)
Dividends paid	(33,862)	(34,053)	(35,357)
Dividends to noncontrolling interest	(5,674)	(2,938)	(2,634)
Payments to Acquire Additional Interest in Subsidiaries	0	(11,009)	0
Purchase of treasury shares	0	(53,800)	(168,983)	$ (617,800)
Proceeds from exercises under stock plans	35,159	11,153	13,075
Excess tax benefits from stock option exercises	0	0	1,699
Purchase of common treasury shares—stock plan exercises	(26,161)	(2,305)	(13,854)
Net cash flows used in financing activities	(32,010)	(95,158)	(220,005)
Effect of exchange rate changes on cash and cash equivalents	28,766	(20,087)	(26,596)
Net change in cash and cash equivalents	92,857	50,874	(22,505)
Cash and cash equivalents—beginning of year	399,948	349,074	371,579
Cash and cash equivalents—end of period	$ 492,805	$ 399,948	$ 349,074	$ 492,805