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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2018, 2017 and 2016 consists of the following:

	2018				2017				2016
Current tax expense:
Federal	$	(1,077	)		$	1,744			$	312
State	777				2,101				159
Foreign	8,036				9,421				7,111
	7,736				13,266				7,582
Deferred income tax expense (benefit)	2,063				(40,021		)		(2,871		)
Provision (benefit) for income taxes	$	9,799			$	(26,755	)		$	4,711

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation between income taxes computed at the statutory federal rate and the provision (benefit) for income taxes for the years ended December 31, 2018, 2017 and 2016 follows:

	2018			2017			2016
Tax provision at statutory rate based on income before income taxes	21.0	%		35.0	%		35.0	%
US tax reform	1.8			(111.0	)		—
International tax reform	(3.6	)		—			—
Consolidated group restructuring	—			(7.4	)		—
Foreign income taxes	3.6			(5.3	)		(6.8	)
Federal research credit	(2.8	)		(2.8	)		(5.6	)
Settlement of taxing authority examinations	(0.7	)		(2.1	)		(3.5	)
Stock-based compensation	(1.6	)		(2.1	)		—
European permanent deduction	(0.2	)		(0.5	)		(3.4	)
Non deductible/non-taxable items	(1.2	)		(0.5	)		7.2
State income taxes, net of federal tax benefit	1.6			2.8			1.7
US tax on worldwide earnings at different rates	2.9			—			—
Other, net	(1.5	)		0.8			(0.3	)
	19.3	%		(93.1	)%		24.3	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of the significant temporary differences which comprise the deferred income tax assets and liabilities at December 31, 2018 and 2017 are as follows:

	2018				2017
Assets:
Inventory	$	4,096			$	2,420
Net operating losses	7,358				11,091
Capitalized research and development	7,214				8,557
Deferred compensation	2,085				1,749
Accounts receivable	2,296				1,855
Compensation and benefits	5,434				4,138
Accrued pension	3,205				2,695
Research and development credit	8,585				8,957
Other	2,235				9,342
Less: valuation allowances	(1,159		)		(570		)
	41,349				50,234
Liabilities:
Goodwill and intangible assets	100,108				102,099
Depreciation	1,345				3,333
State taxes	12,212				11,709
Unremitted foreign earnings	3,583				6,000
Contingent interest	—				40
	117,248				123,181
Net liability	$	(75,899	)		$	(72,947	)

Schedule of Income before Income Tax

Income before income taxes consists of the following U.S. and foreign income:

	2018				2017				2016
U.S. income (loss)	$	24,320			$	1,492			$	(6,128	)
Foreign income	26,333				27,240				25,503
Total income	$	50,653			$	28,732			$	19,375

Schedule of Unrecognized Tax Benefits Rollforward

The following table summarizes the activity related to our unrecognized tax benefits for the years ending December 31,:

	2018				2017				2016
Balance as of January 1,	$	2,943			$	1,839			$	616
Increases (decreases) for positions taken in prior periods	(250		)		(246		)		—
Increases for positions taken in current periods	1,017				1,957				1,584
Decreases in unrecorded tax positions related to settlement with the taxing authorities	(370		)		(607		)		(361		)
Decreases in unrecorded tax positions related to lapse of statute of limitations	(267		)		—				—
Balance as of December 31,	$	3,073			$	2,943			$	1,839

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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