v3.10.0.1

Net Income (Loss) per Share Attributable to Common Stockholders - Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Numerator: |  |  |  |
Net (loss) income attributable to common stockholders, basic | $ 979 | $ (418) | $ 1,996 | $ 704
Net (loss) income attributable to common stockholders, diluted | 979 | (418) | 1,996 | 704
Plus: undistributed earnings allocated to participating securities | 873 | 0 | 2,384 | 2,055
Less: undistributed earnings reallocated to participating securities | (863) | 0 | (2,362) | (2,047)
Net income (loss) attributable to common stockholders | $ 989 | $ (418) | $ 2,018 | $ 712
Denominator: |  |  |  |
Weighted average number of shares outstanding, basic | 31,356 | 29,825 | 30,980 | 29,510
Dilutive impact from: |  |  |  |
Weighted average number of shares outstanding, diluted | 33,880 | 32,521 | 33,633 | 32,085
Net income (loss) per share attributable to common stockholders, basic (in dollars per share) | $ 0.03 | $ (0.01) | $ 0.06 | $ 0.02
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share) | $ 0.03 | $ (0.01) | $ 0.06 | $ 0.02
Employee Stock Option |  |  |  |
Dilutive impact from: |  |  |  |
Share-based payment arrangements | 1,899 | 1,962 | 1,944 | 1,869
Restricted stock units |  |  |  |
Dilutive impact from: |  |  |  |
Share-based payment arrangements | 625 | 734 | 709 | 706

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109260490&loc=d3e1337-109256 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=109256448&loc=d3e4984-109258 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109260490&loc=d3e1252-109256 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109260490&loc=SL5780133-109256 + Details
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