Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities
Net cash provided by (used for) operating activities	$ 5,178	$ (20,758)
Cash flows from investing activities
Capital expenditures for property, plant and equipment	(35,508)	(31,817)
Proceeds from sale of assets	1,192	2,374
Other investing activities	436	193
Net cash used for investing activities	(33,880)	(29,250)
Cash flows from financing activities
Net borrowings under loans payable	34,906	57,570
Proceeds from long-term debt	212,996	382,219
Principal payments on long-term debt	(215,174)	(381,771)
Redemption of convertible preferred stock		(9,427)
Cash dividends paid		(165)
Other financing activities	(1,060)	(856)
Net cash provided by financing activities	31,668	47,570
Effect of exchange rate changes on cash and cash equivalents	(590)	771
Increase (decrease) in cash and cash equivalents	2,376	(1,667)
Cash and cash equivalents at beginning of period	22,991	29,035
Cash and cash equivalents at end of period	25,367	27,368
Cash paid during the period for:
Interest	13,196	12,575
Income taxes	$ 2,098	$ 14,715