CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 50,607	$ 37,144
Adjustments to reconcile net earnings attributable to controlling interest:
Depreciation	24,241	22,333
Amortization of intangibles	1,743	1,880
Expense associated with share-based compensation arrangements	1,445	1,491
Excess tax benefits from share-based compensation arrangements	(2)	(8)
Expense associated with stock grant plans	81	0
Deferred income taxes (credit)	127	(83)
Equity in earnings of investee	(246)	(152)
Net gain on disposition and impairment of assets	(3,418)	(195)
Changes in:
Accounts receivable	(76,642)	(79,849)
Inventories	14,754	11,261
Accounts payable and cash overdraft	25,078	19,336
Accrued liabilities and other	32,760	34,580
NET CASH FROM OPERATING ACTIVITIES	70,528	47,738
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(31,676)	(32,108)
Proceeds from sale of property, plant and equipment	6,463	1,261
Acquisitions, net of cash received	(7,135)	(9,296)
Advances of notes receivable	(2,229)	(1,990)
Collections on notes receivable	983	1,441
Cash restricted as to use	0	6,111
Other, net	(95)	28
NET CASH FROM INVESTING ACTIVITIES	(33,689)	(34,553)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under revolving credit facilities	192,475	251,801
Repayments under revolving credit facilities	(192,475)	(262,891)
Debt issuance costs	(11)	(15)
Proceeds from issuance of common stock	297	839
Distributions to noncontrolling interest	(1,710)	(1,460)
Dividends paid to shareholders	(4,214)	(3,977)
Repurchase of common stock	(4,772)	0
Excess tax benefits from share-based compensation arrangements	2	8
NET CASH FROM FINANCING ACTIVITIES	(10,408)	(15,695)
Effect of exchange rate changes on cash	(247)	14
NET CHANGE IN CASH AND CASH EQUIVALENTS	26,184	(2,496)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	0	7,647
CASH AND CASH EQUIVALENTS, END OF PERIOD	26,184	5,151
SUPPLEMENTAL INFORMATION:
Interest paid	2,475	2,850
Income taxes paid	26,605	6,780
NON-CASH INVESTING ACTIVITIES
Other receivables exchanged for notes receivable	2,768	1,635
Notes receivable exchanged for property	2,980	3,900
NON-CASH FINANCING ACTIVITIES:
Common stock issued under deferred compensation plans	$ 2,270	$ 1,647