Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net sales	$ 767,459	$ 746,059	$ 1,463,503	$ 1,433,588
Cost of sales	616,745	607,680	1,183,969	1,180,256
Gross profit	150,714	138,379	279,534	253,332
Selling, general and administrative	67,674	65,618	130,098	125,177
Research and development	22,079	14,308	43,124	28,614
Total operating expenses	89,753	79,926	173,222	153,791
Operating income	60,961	58,453	106,312	99,541
Interest expense	22,537	23,739	46,259	45,817
Interest expense, related party	1,242	3,192	2,484	6,684
Other (income) expense, net	(5,699)	12,876	(5,663)	10,654
Total other expense, net	18,080	39,807	43,080	63,155
Income before taxes and equity in earnings of unconsolidated affiliate	42,881	18,646	63,232	36,386
Income tax expense (benefit)	12,511	(10,238)	17,440	(6,209)
Income before equity in earnings of unconsolidated affiliate	30,370	28,884	45,792	42,595
Equity in earnings of J-Devices	20,036	1,445	25,797	1,500
Net income	50,406	30,329	71,589	44,095
Net income attributable to noncontrolling interests	(885)	(602)	(1,435)	(986)
Net income attributable to Amkor	$ 49,521	$ 29,727	$ 70,154	$ 43,109
Net income attributable to Amkor per common share:
Basic (in dollars per share)	$ 0.21	$ 0.18	$ 0.31	$ 0.27
Diluted (in dollars per share)	$ 0.21	$ 0.14	$ 0.30	$ 0.21
Shares used in computing per common share amounts:
Basic (in shares)	232,891	160,886	224,868	156,672
Diluted (in shares)	236,872	235,111	236,182	235,099