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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Summary of Differences Between US Federal Statutory Tax Rate and Company's Consolidated Effective Tax Rate

The differences between the US federal statutory tax rate and the Company’s consolidated effective tax rate is as follows:

		Three Months Ended								Nine Months Ended
		September 30,				October 1,				September 30,				October 1,
		2017				2016				2017				2016
US federal statutory tax rate			35.0	%			35.0	%			35.0	%			35.0	%
State income taxes (net of federal benefit)			0.5	%			0.0	%			1.5	%			0.0	%
Cessation of Spanish operations			0.0	%			0.0	%			(8.5	%)			0.0	%
Research and development credit			(2.1	%)			(39.6	%)			(2.2	%)			(24.0	%)
Tax (windfall) shortfall on share-based    awards			(0.9	%)			0.0	%			0.0	%			0.0	%
Reserves for uncertain tax positions			(4.5	%)			7.4	%			(1.7	%)			5.2	%
Out-of-period adjustments			0.0	%			7.0	%			0.0	%			4.0	%
Increase (decrease) in valuation allowance			1.1	%			0.0	%			3.0	%			(3.8	%)
Other			1.4	%			0.5	%			(0.5	%)			2.2	%
Effective Tax Rate			30.5	%			10.3	%			26.6	%			18.6	%

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- References

No definition available.

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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