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CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $)
In Thousands
6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES    
Net cash provided by operating activities $ 48,082 $ 46,928
CASH FLOWS FROM INVESTING ACTIVITIES    
Proceeds from sale of short-term investments 0 296,600
Purchases of property, plant and equipment (44,984) (41,053)
Proceeds from sale of property, plant and equipment 10 2,141
Other 77 (152)
Net cash provided by (used in) investing activities (44,897) 257,536
CASH FLOWS FROM FINANCING ACTIVITIES    
Advances on line of credit 10,000 3,762
Repayments on lines of credit 0 (301,625)
Net proceeds from issuance of common stock 3,709 2,634
Repayments of long-term debt (272) (969)
Repayments of capital lease obligations (88) (139)
Net cash provided by (used by) financing activities 13,349 (296,337)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS 2,931 (4,440)
INCREASE IN CASH AND CASH EQUIVALENTS 19,465 3,687
CASH AND CASH EQUIVALENTS, beginning of period 270,901 241,953
CASH AND CASH EQUIVALENTS, end of period 290,366 245,640
Non-cash activities:    
Property, plant and equipment purchased on accounts payable $ 9,409 $ 6,292