Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 111,657	$ 42,702	$ 93,095
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	410,346	370,479	335,644
Amortization of deferred debt issuance costs and premiums	2,880	3,663	3,737
Deferred income taxes	(8,256)	6,078	(2,239)
Equity in earnings of unconsolidated affiliate	(10,316)	(5,592)	(7,085)
Loss on debt retirement, net	11,619	737	10,557
(Gain) loss on disposal of fixed assets, net	(2,545)	(1,676)	1,942
Share-based compensation	2,971	2,720	5,010
Other, net	(712)	(1,279)	(189)
Changes in assets and liabilities:
Accounts receivable	(992)	(96,107)	95,882
Other receivables	461	(1,570)	2,813
Inventories	38,248	(29,882)	(6,912)
Other current assets	(10,873)	5,015	5,597
Other assets	3,709	598	(347)
Trade accounts payable	(67,198)	17,142	(7,539)
Accrued expenses	32,001	66,566	(21,676)
Other non-current liabilities	30,208	20,695	19,042
Net cash provided by operating activities	557,536	389,063	516,832
Cash flows from investing activities:
Purchases of property, plant and equipment	(566,256)	(533,512)	(466,694)
Payments to acquire businesses, net of cash acquired	(41,865)	0	0
Proceeds from the sale of property, plant and equipment	27,209	2,727	15,823
Payments from J-Devices	8,843	15,484	10,794
Payments to Acquire Businesses and Interest in Affiliates	(67,372)	0	0
Change in restricted cash	74	1,693	13,046
Other investing activities	(1,127)	(6,513)	(3,503)
Net cash used in investing activities	(640,494)	(520,121)	(430,534)
Cash flows from financing activities:
Borrowings under revolving credit facilities	5,000	0	0
Payments under revolving credit facilities	5,000	0	0
Borrowings under short-term debt	0	30,000	26,567
Payments of short-term debt	0	(50,000)	(21,567)
Proceeds from issuance of long-term debt	375,000	637,528	387,512
Proceeds from issuance of long-term debt, related party	0	0	75,000
Payments of long-term debt, net of certain redemption premiums	(80,000)	(420,116)	(392,191)
Payments for debt issuance costs	(3,216)	(6,007)	(5,875)
Payments for the retirement of debt	(11,619)	0	0
Payments for repurchase of common stock	0	(80,946)	(128,368)
Proceeds from issuance of stock through share-based compensation plans	446	182	821
Payments of tax withholding for restricted shares	(466)	(609)	(776)
Net cash provided by (used in) financing activities	280,145	110,032	(58,877)
Effect of exchange rate fluctuations on cash and cash equivalents	207	(557)	2,212
Net increase (decrease) in cash and cash equivalents	197,394	(21,583)	29,633
Cash and cash equivalents, beginning of period	413,048	434,631
Cash and cash equivalents, end of period	610,442	413,048	434,631
Cash paid during the period for:
Interest	100,577	86,138	81,280
Income taxes	18,318	8,199	16,380
Non-cash investing activities:
Common stock issuance for conversion of related party 6.25% convertible subordinated notes	193,650	0	0
Common stock issuance for conversion of related party 6.25% convertible subordinated notes	$ 0	$ 0	$ 100,000