CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net cash provided by operating activities	$ 30,271	$ 48,082
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(24,237)	(44,984)
Purchase of equity securities	(5,664)	0
Proceeds from sale of property, plant and equipment	1,966	10
Proceeds from sale of intangibles	2,122	0
Other	108	77
Net cash used in investing activities	(25,705)	(44,897)
CASH FLOWS FROM FINANCING ACTIVITIES
Advances on line of credit	997	10,000
Repayments on lines of credit	(8,000)	0
Borrowings of long-term debt	70,000	0
Repayments of long-term debt	(30,162)	(360)
Net proceeds from issuance of common stock	1,236	3,709
Other	(160)	0
Net cash provided by financing activities	33,911	13,349
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	306	2,931
INCREASE IN CASH AND CASH EQUIVALENTS	38,783	19,465
CASH AND CASH EQUIVALENTS, beginning of period	129,510	270,901
CASH AND CASH EQUIVALENTS, end of period	168,293	290,366
Non-cash activities:
Property, plant and equipment purchased on accounts payable	$ (6,759)	$ (9,409)