Equity and Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Changes in equity attributable to both Company and noncontrolling interests

Changes in equity consist of the following:

	Attributable to Amkor			Attributable to Non-controlling Interests			Total
	(In thousands)
Equity at December 31, 2016	$	1,383,588		$	19,816		$	1,403,404
Net income (loss)	(10,006		)	862			(9,144		)
Other comprehensive income (loss)	13,816			—			13,816
Issuance of stock through employee share-based compensation plans	145			—			145
Treasury stock acquired through surrender of shares for tax withholding	(210		)	—			(210		)
Share-based compensation	1,053			—			1,053
Subsidiary dividends paid to non-controlling interests	—			(135		)	(135		)
Equity at March 31, 2017	$	1,388,386		$	20,543		$	1,408,929

	Attributable to Amkor			Attributable to Non-controlling Interests			Total
	(In thousands)
Equity at December 31, 2015	$	1,200,286		$	17,250		$	1,217,536
Net income (loss)	(875		)	470			(405		)
Other comprehensive income (loss)	19,347			—			19,347
Treasury stock acquired through surrender of shares for tax withholding	(119		)	—			(119		)
Share-based compensation	805			—			805
Subsidiary dividends paid to non-controlling interests	—			(135		)	(135		)
Equity at March 31, 2016	$	1,219,444		$	17,585		$	1,237,029

Changes in accumulated other comprehensive income (loss)

Changes in accumulated other comprehensive income (loss), net of tax, consist of the following:

	Defined Benefit Pension		Foreign Currency Translation		Total
	(In thousands)
Accumulated other comprehensive income (loss) at December 31, 2016	$	1,138	$	5,124	$	6,262
Other comprehensive income (loss) before reclassifications	—		13,586		13,586
Amounts reclassified from accumulated other comprehensive income (loss)	230		—		230
Other comprehensive income (loss)	230		13,586		13,816
Accumulated other comprehensive income (loss) at March 31, 2017	$	1,368	$	18,710	$	20,078

	Defined Benefit Pension			Foreign Currency Translation			Total
	(In thousands)
Accumulated other comprehensive income (loss) at December 31, 2015	$	(1,425	)	$	(659	)	$	(2,084	)
Other comprehensive income (loss) before reclassifications	—			19,323			19,323
Amounts reclassified from accumulated other comprehensive income (loss)	24			—			24
Other comprehensive income (loss)	24			19,323			19,347
Accumulated other comprehensive income (loss) at March 31, 2016	$	(1,401	)	$	18,664		$	17,263