CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities
Net income (loss)	$ 68,015	$ (1,912)
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	23,840	42,368
Provision for severance benefits	16,779	13,137
Amortization of debt issuance costs and original issue discount	753	728
(Gain) loss on foreign currency translation, net	(25,304)	33,220
Gain on disposal of property, plant and equipment, net	(174)	(15)
Loss on disposal of intangible assets, net	26	17
Restructuring and impairment charges		4,096
Stock-based compensation	1,450	1,798
Loss on early extinguishment of senior notes		5,460
Other	(332)	6,111
Changes in operating assets and liabilities
Accounts receivable	(18,168)	(4,400)
Inventories	(8,526)	(4,400)
Other receivables	(1,787)	836
Other current assets	(662)	(3,196)
Deferred tax assets	1,514	1,483
Accounts payable	17,472	15,072
Other accounts payable	(700)	7,157
Accrued expenses	13,761	(18,278)
Other current liabilities	9,450	(1,209)
Payment of severance benefits	(5,569)	(6,549)
Other	(2,239)	141
Net cash provided by (used in) operating activities	89,599	86,205
Cash flows from investing activities
Decrease (increase) in restricted cash	6,774	(9,711)
Proceeds from disposal of plant, property and equipment	937	29
Purchase of plant, property and equipment	(56,745)	(42,945)
Payment for intellectual property registration	(752)	(521)
Payment for purchase of Dawin, net of cash acquired	(8,642)
Decrease in short-term financial instruments	173
Collection of guarantee deposits	72	984
Payment of guarantee deposits	(311)	(2,489)
Other	(50)	(400)
Net cash provided by (used in) investing activities	(58,544)	(55,278)
Cash flows from financing activities
Proceeds from issuance of common stock	436	8,835
Repurchase of senior notes		(50,307)
Repayment of obligations under capital lease	(2,968)	(4,831)
Acquisition of treasury stock	(22,937)
Net cash provided by (used in) financing activities	(25,469)	(46,303)
Effect of exchange rates on cash and cash equivalents	(2,039)	2,672
Net increase (decrease) in cash and cash equivalents	3,547	(12,704)
Cash and cash equivalents
Beginning of the period	162,111	172,172
End of the period	165,658	159,468
Supplemental cash flow information
Cash paid for interest	10,921	14,004
Cash paid (refunded) for income taxes	(599)	1,776
Noncash transactions
Deferred offering costs reclassified as reduction of additional paid-in capital		$ 7,236