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Stock-Based Compensation - Narrative (Details) $ in Millions | 9 Months Ended
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Sep. 28, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares available for grant (in shares) | 14,408,816
Options awarded (in shares) | 3,022,113
Stock Options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized compensation expense | $ | $ 52.8
Weighted-average cost recognition period | 2 years 7 months 20 days
PSOs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options awarded (in shares) | 308,365
Minimum required fair market value of shares over exercise price to trigger share exercises | 125.00%
RSUs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
RSUs awarded (in shares) | 2,411,245
Unrecognized compensation expense | $ | $ 87.6
Weighted-average cost recognition period | 3 years 2 months 19 days
PSUs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
RSUs awarded (in shares) | 693,131
Unrecognized compensation expense | $ | $ 12.7

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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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