Segments and Major Customers (Tables)

12 Months Ended

Dec. 31, 2016

Reported segment revenues, and reported segment operating income (loss)

The tables below present reported segment operating income (loss) for the years ended December 31, 2016, 2015 and 2014:



	For the Year Ended December 31, 2016
	MID		RSD		Other			Total
	(In thousands)
Revenues	$	239,843	$	76,175	$	20,579		$	336,597
Segment operating expenses	68,460		51,855		30,397			150,712
Segment operating income (loss)	$	171,383	$	24,320	$	(9,818	)	$	185,885
Reconciling items								(152,243		)
Operating income								$	33,642
Interest and other income (expense), net								(11,005		)
Income before income taxes								$	22,637



	For the Year Ended December 31, 2015
	MID		RSD		Other			Total
	(In thousands)
Revenues	$	221,968	$	50,497	$	23,813		$	296,278
Segment operating expense	47,780		29,056		32,147			108,983
Segment operating income (loss)	$	174,188	$	21,441	$	(8,334	)	$	187,295
Reconciling items								(115,875		)
Operating income								$	71,420
Interest and other income (expense), net								(11,189		)
Income before income taxes								$	60,231



	For the Year Ended December 31, 2014
	MID		RSD		Other			Total
	(In thousands)
Revenues	$	226,303	$	49,330	$	20,925		$	296,558
Segment operating expenses	40,816		27,608		34,106			102,530
Segment operating income (loss)	$	185,487	$	21,722	$	(13,181	)	$	194,028
Reconciling items								(118,682		)
Operating income								$	75,346
Interest and other income (expense), net								(25,096		)
Income before income taxes								$	50,250

Revenue from external customer by geographic regions

Revenue from customers in the geographic regions based on the location of contracting parties is as follows:



	Years Ended December 31,
	2016		2015		2014
	(In thousands)
South Korea	$	129,542	$	115,486	$	107,441
USA	121,209		118,278		109,060
Japan	30,215		29,687		30,454
Europe	16,031		9,616		21,349
Canada	3,478		214		7,119
Singapore	17,908		16,312		12,980
Asia-Other	18,214		6,685		8,155
Total	$	336,597	$	296,278	$	296,558

Accounts Receivable [Member]

Concentration Risk

Schedule of customer accounts representing 10% or more than 10% of total revenue

Accounts receivable from the Company's major customers representing 10% or more of total accounts receivable at December 31, 2016 and December 31, 2015, respectively, was as follows:



	As of December 31,
Customer	2016		2015
Customer 1 (MID reportable segment)	13	%	16	%
Customer 2 (Other segment)	12	%	27	%
Customer 3 (MID reportable segment)	*		28	%
Customer 4 (RSD reportable segment)	*		21	%
Customer 5 (RSD reportable segment)	17	%	*

_________________________________________

* Customer accounted for less than 10% of total accounts receivable in the period

Sales, net

Concentration Risk

Schedule of customer accounts representing 10% or more than 10% of total revenue

Revenue from the Company’s major customers representing 10% or more of total revenue for the years ended December 31, 2016, 2015 and 2014 were as follows:



	Years Ended December 31,
	2016		2015		2014
Customer A (MID and RSD reportable segments)	19	%	20	%	20	%
Customer B (MID reportable segment)	20	%	19	%	16	%
Customer C (MID reportable segment)	13	%	13	%	13	%

_________________________________________

* Customer accounted for less than 10% of total revenue in the period