Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net sales	$ 696,044	$ 687,529
Cost of sales	567,224	572,576
Gross profit	128,820	114,953
Selling, general and administrative	62,424	59,559
Research and development	21,045	14,306
Total operating expenses	83,469	73,865
Operating income	45,351	41,088
Interest expense	23,722	22,078
Interest expense, related party	1,242	3,492
Other expense (income), net	(36)	2,222
Total other expense, net	25,000	23,348
Income before taxes and equity in earnings of unconsolidated affiliate	20,351	17,740
Income tax expense	4,929	4,029
Income before equity in earnings of unconsolidated affiliate	15,422	13,711
Equity in earnings of J-Devices	(5,761)	(55)
Net income	21,183	13,766
Net income attributable to noncontrolling interests	(550)	(384)
Net income attributable to Amkor	$ 20,633	$ 13,382
Net income attributable to Amkor per common share:
Basic (in dollars per share)	$ 0.09	$ 0.09
Diluted (in dollars per share)	$ 0.09	$ 0.07
Shares used in computing per common share amounts:
Basic (in shares)	216,757	152,411
Diluted (in shares)	235,497	235,087