Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net sales	$ 767,987	$ 695,353	$ 2,201,575	$ 2,036,890
Cost of sales	626,979	578,566	1,807,235	1,725,802
Gross profit	141,008	116,787	394,340	311,088
Operating expenses:
Selling, general and administrative	64,347	49,297	189,524	160,041
Research and development	18,647	13,472	47,261	40,764
Total operating expenses	82,994	62,769	236,785	200,805
Operating income	58,014	54,018	157,555	110,283
Other expense (income):
Interest expense	26,104	19,689	71,921	60,727
Interest expense, related party	1,243	3,493	7,927	10,477
Interest income	(1,605)	(772)	(3,108)	(2,489)
Foreign currency (gain) loss, net	(2,716)	2,394	(1,841)	4,461
Loss on debt retirement, net	0	0	11,619	0
Equity in earnings of unconsolidated affiliate	(3,179)	(2,541)	(4,679)	(5,421)
Other income, net	(7)	(359)	(344)	(1,511)
Total other expense, net	19,840	21,904	81,495	66,244
Income before income taxes	38,174	32,114	76,060	44,039
Income tax expense	12,170	9,538	5,961	9,009
Net income	26,004	22,576	70,099	35,030
Net income attributable to noncontrolling interests	(655)	(259)	(1,641)	(358)
Net income attributable to Amkor	$ 25,349	$ 22,317	$ 68,458	$ 34,672
Net income attributable to Amkor per common share:
Basic (in dollars per share)	$ 0.12	$ 0.14	$ 0.38	$ 0.21
Diluted (in dollars per share)	$ 0.11	$ 0.11	$ 0.33	$ 0.19
Shares used in computing per common share amounts:
Basic (in shares)	216,499	154,365	176,839	162,699
Diluted (in shares)	235,143	237,060	235,119	245,431