CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net cash provided by operating activities	$ 13,447	$ 15,730
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(11,943)	(12,433)
Proceeds from sale of property, plant and equipment	302	10
Proceeds from sale of intangible assets	2,122	0
Other	(139)	(637)
Net cash used in investing activities	(9,658)	(13,060)
CASH FLOWS FROM FINANCING ACTIVITIES
Advances on line of credit	2,482	0
Advances on long-term debt	40,000	0
Net proceeds from issuance of common stock	473	2,668
Repayments of long-term debt	(103)	(103)
Other	(87)	(85)
Net cash provided by financing activities	42,765	2,480
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	664	2,689
INCREASE IN CASH AND CASH EQUIVALENTS	47,218	7,839
CASH AND CASH EQUIVALENTS, beginning of period	129,510	270,901
CASH AND CASH EQUIVALENTS, end of period	176,728	278,740
Non-cash activities:
Property, plant and equipment purchased on accounts payable	$ (3,807)	$ (6,166)