Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Components of Income Tax Expense (Benefit)

Income (loss) before income taxes	2016			2015			2014
U.S.	$	(40,861	)	$	(21,091	)	$	392
Foreign		65,896			61,686			85,600
Total	$	25,035		$	40,595		$	85,992

The components of the income tax provision (benefit) are as follows for the years ended December 31:

	2016			2015			2014
Current tax provision (benefit)
Federal	$	-		$	12		$	285
Foreign		28,993			17,983			21,783
State		13			29			44
		29,006			18,024			22,112
Deferred tax provision (benefit)
Federal		(10,517	)		(2,739	)		2,996
Foreign		(13,847	)		(1,063	)		(4,244	)
State		101			(228	)		51
		(24,263	)		(4,030	)		(1,197	)
Liability for unrecognized tax benefits		1,815			88			(556	)
Total income tax provision	$	6,558		$	14,082		$	20,359

Schedule of Effective Income Tax Rate Reconciliation

Reconciliation between the effective tax rate and the statutory tax rates for the years ended December 31, 2016, 2015, and 2014 is as follows:

	2016						2015						2014
				Percent						Percent						Percent
				of pretax						of pretax						of pretax
	Amount			earnings			Amount			earnings			Amount			earnings
Federal tax	$	8,762			35.0		$	14,214			35.0		$	30,097			35.0
State income taxes, net of federal tax provision		(65	)		(0.3	)		(152	)		(0.4	)		18			-
Foreign income taxed at lower tax rates		(6,955	)		(27.8	)		(10,126	)		(24.9	)		(9,421	)		(11.0	)
U.S. tax impact of foreign operations		324			1.3			2,046			5.0			365			0.4
Foreign withholding taxes		4,834			19.3			2,268			5.6			3,694			4.3
Research and development		(2,241	)		(9.0	)		(2,068	)		(5.1	)		(2,666	)		(3.1	)
Liability for unrecognized tax benefits		1,815			7.3			88			0.2			(556	)		(0.6	)
Valuation allowance		(2,600	)		(10.4	)		3,580			8.8			876			1.0
Provision-to-return adjustments		(61	)		(0.2	)		994			2.4			(1,925	)		(2.2	)
Other		2,745			11.0			3,238			8.1			(123	)		(0.1	)
Income tax provision	$	6,558			26.2		$	14,082			34.7		$	20,359			23.7

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible

In accordance with the provisions related to accounting for uncertainty in income taxes, we recognize the benefit of a tax position if the position is “more likely than not” to prevail upon examination by the relevant tax authority. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

	2016			2015			2014
Balance at January 1,	$	26,503		$	19,488		$	20,710
Additions based on tax positions related to the current year		6,746			3,450			2,729
Additions for prior year tax positions		960			6,963			424
Reductions for prior year tax positions		(5,360	)		(3,398	)		(4,375	)
Balance at December 31,	$	28,849		$	26,503		$	19,488

Schedule of Deferred Tax Assets and Liabilities

At December 31, 2016 and 2015, our deferred tax assets and liabilities are comprised of the following items:

	2016			2015
Deferred tax assets
Inventory cost	$	6,923		$	7,944
Accrued expenses and accounts receivable		2,112			2,206
Foreign tax credits		19,610			20,133
Research and development tax credits		13,633			12,306
Net operating loss carryforwards		37,379			25,878
Accrued pension		5,494			7,169
Share based compensation and others		16,992			18,238
		102,143			93,874
Valuation allowances		(32,082	)		(35,738	)
Total deferred tax assets, non-current		70,061			58,136
Deferred tax liabilities
Plant, equipment and intangible assets		(28,639	)		(39,722	)
Total deferred tax liabilities, non-current		(28,639	)		(39,722	)
Net deferred tax assets	$	41,422		$	18,414