CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		28 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016
Cash flows from operating activities:
Net earnings	$ 29,521	$ 13,549	$ 107,134	$ 74,495
Adjustments to reconcile net earnings to net cash flows from operations:
Depreciation and amortization			61,242	70,859
Noncash loss on trading securities			973	5,020
Impairment of assets - restructuring activities			618	12,659
Impairment of goodwill and intangible assets			0	15,200
Stock-based compensation			6,572	5,667
Change in fair value of contingent consideration			(3,527)	0
Defined benefit pension plan expense (benefit)			1,486	(460)
Contribution to defined benefit pension plan			(712)	(15,735)
Increase in restricted cash - pension			(13,652)	0
Gain on sale of property, plant and equipment			250	1,263
Equity in earnings in nonconsolidated subsidiaries	0	0	0	0
Deferred income taxes	(3,749)	5,272	(1,534)	5,217
Changes in assets and liabilities:
Receivables			16,436	5,551
Inventories			(34,413)	(25,447)
Prepaid expenses and other assets			(10,624)	5,275
Accounts payable			(11,338)	832
Accrued expenses			3,272	7,368
Other noncurrent liabilities			240	887
Income taxes refundable			4,831	14,171
Net cash flows from operating activities			127,254	182,822
Cash flows from investing activities:
Purchase of property, plant and equipment			(42,233)	(34,447)
Proceeds from sale of assets			3,938	3,256
Other, net			(2,824)	5,980
Net cash flows from investing activities			(41,119)	(25,211)
Cash flows from financing activities:
Net borrowings under short-term agreements			(128)	(12,322)
Proceeds from Issuance of Long-term Debt			0	37,000
Principal payments on long-term borrowings			(1,563)	(37,878)
Dividends paid			(25,604)	(26,708)
Dividends to noncontrolling interest			(2,527)	(2,323)
Payments to Noncontrolling Interests			11,009	0
Purchase of treasury shares			(46,581)	(148,220)	$ (610,600)
Proceeds from exercises under stock plans			6,509	10,902
Excess tax benefits from stock option exercises			0	1,458
Purchase of common treasury shares—stock plan exercises			(1,453)	(12,135)
Net cash flows from financing activities			(82,356)	(190,226)
Effect of exchange rate changes on cash and cash equivalents			(3,478)	(26,113)
Net change in cash and cash equivalents			301	(58,728)
Cash and cash equivalents—beginning of year			349,074	371,579
Cash and cash equivalents—end of period	$ 349,375	$ 312,851	$ 349,375	$ 312,851	$ 349,375