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Stock-Based Compensation (Stock Option Activity) (Details) $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 28, 2018 USD ($) $ / shares shares
Number of Stock Options |
Beginning balance (in shares) | shares | 931,353
Granted (in shares) | shares | 28,447
Exercised (in shares) | shares | (413,317)
Forfeited or expired (in shares) | shares | (23,700)
Ending balance (in shares) | shares | 522,783
Vested and expected to vest (in shares) | shares | 522,783
Exercisable (in shares) | shares | 488,468
Weighted Average Exercise Price |
Beginning balance (in dollars per share) | $ / shares | $ 30.89
Granted (in dollars per share) | $ / shares | 45.13
Exercised (in dollars per share) | $ / shares | 30.02
Forfeited or expired (in dollars per share) | $ / shares | 41.28
Ending balance (in dollars per share) | $ / shares | 31.88
Vested and expected to vest (in dollars per share) | $ / shares | 31.88
Exercisable (in dollars per share) | $ / shares | $ 31.37
Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value |
Outstanding, weighted average remaining contractual term | 5 years 10 months
Vested and expected to vest, weighted average remaining contractual term | 5 years 10 months
Exercisable, weighted average remaining contractual term | 5 years 7 months
Outstanding, aggregate intrinsic value | $ | $ 23.1
Vested and expected to vest, aggregate intrinsic value | $ | 23.1
Exercisable, aggregate intrinsic value | $ | $ 21.8

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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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- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + 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 (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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