CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016	Jun. 25, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 24,625	$ 34,091	$ 87,517
Restricted cash	905	398	909
Investments	10,401	10,348	9,740
Accounts receivable, net	398,529	282,253	318,505
Inventories:
Raw materials	218,356	198,954	165,857
Finished goods	220,079	198,273	131,939
Total inventories	438,435	397,227	297,796
Refundable income taxes		11,459
Other current assets	21,970	20,662	15,238
TOTAL CURRENT ASSETS	894,865	756,438	729,705
RESTRICTED INVESTMENTS	7,911
DEFERRED INCOME TAXES	1,981	1,546	2,541
OTHER ASSETS	7,842	8,617	7,470
GOODWILL	213,597	198,535	181,381
INDEFINITE-LIVED INTANGIBLE ASSETS	2,340	2,340	2,340
OTHER INTANGIBLE ASSETS, NET	37,547	26,731	14,170
PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment	735,474	699,462	649,652
Less accumulated depreciation and amortization	(419,518)	(401,611)	(392,753)
PROPERTY, PLANT AND EQUIPMENT, NET	315,956	297,851	256,899
TOTAL ASSETS	1,482,039	1,292,058	1,194,506
CURRENT LIABILITIES:
Cash overdraft	22,769	19,761
Accounts payable	160,250	124,660	126,095
Accrued liabilities:
Compensation and benefits	77,187	92,441	74,919
Income taxes	960		1,755
Other	48,063	32,281	35,321
Current portion of long-term debt	2,378	2,634	1,093
TOTAL CURRENT LIABILITIES	311,607	271,777	239,183
LONG-TERM DEBT	204,752	109,059	84,530
DEFERRED INCOME TAXES	20,360	20,817	25,092
OTHER LIABILITIES	28,959	29,939	26,066
TOTAL LIABILITIES	565,678	431,592	374,871
Controlling interest shareholders' equity:
Preferred stock, no par value; shares authorized 1,000,000; issued and outstanding, none
Common stock, no par value; shares authorized 80,000,000; issued and outstanding, 20,421,775, 20,342,069, and 20,307,463	20,422	20,342	20,307
Additional paid-in capital	199,092	185,333	182,710
Retained earnings	684,808	649,135	609,718
Accumulated other comprehensive income	(2,590)	(5,630)	(4,149)
Total controlling interest shareholders' equity	901,732	849,180	808,586
Noncontrolling interest	14,629	11,286	11,049
TOTAL SHAREHOLDERS' EQUITY	916,361	860,466	819,635
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,482,039	$ 1,292,058	$ 1,194,506