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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2018
Income Tax Disclosure [Abstract] |
Unrecognized Tax Benefits Roll Forward | The following is a summary of the activity of the Company’s unrecognized tax benefits for the three months ended March 31, 2018 and April 1, 2017 (in thousands):
|  | March 31, 2018 |  |  | April 1, 2017 |
Balance at the beginning of the period |  | $ | 5,843 |  |  | $ | 9,964 |
Net changes in uncertain tax benefits |  |  | 94 |  |  |  | (717 | )
Balance at the end of the period |  | $ | 5,937 |  |  | $ | 9,247 |

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- Definition Tabular disclosure of the change in unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 55 -Paragraph 217 -URI http://asc.fasb.org/extlink&oid=96868398&loc=d3e36027-109320 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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