CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net cash provided by operating activities	$ 47,866	$ 65,053
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition, net of cash acquired	(4,653)	0
Purchases of property, plant and equipment	(42,889)	(69,802)
Purchase of equity securities	(3,413)	(13,482)
Proceeds from sale of property, plant and equipment	1,966	19
Proceeds from sale of intangibles	2,122	0
Other	185	64
Net cash used by investing activities	(46,682)	(83,201)
CASH FLOWS FROM FINANCING ACTIVITIES
Advances on line of credit	2,629	10,000
Repayments on lines of credit	(8,000)	(10,000)
Borrowings of long-term debt	70,000	0
Repayments of long-term debt	(30,317)	(134,369)
Net proceeds from issuance of common stock	1,306	3,352
Other	(219)	282
Net cash provided by (used by) financing activities	35,399	(130,735)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	2,173	2,879
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	38,756	(146,004)
CASH AND CASH EQUIVALENTS, beginning of period	129,510	270,901
CASH AND CASH EQUIVALENTS, end of period	168,266	124,897
Non-cash activities:
Property, plant and equipment purchased on accounts payable	$ (5,963)	$ (4,075)