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Summary of Stock Option Activity Awards (Detail) - $ / shares | 12 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |  |  |
Outstanding at beginning of year, Shares | 3,766,299 | 4,056,536 | 5,779,597
Granted, Shares | 0 | 1,365,498 | 0
Forfeited, Shares | (1,792,948) | (1,226,716) | (108,818)
Exercised, Shares | (35,417) | (429,019) | (1,614,243)
Outstanding at end of year, Shares | 1,937,934 | 3,766,299 | 4,056,536
Outstanding at beginning of year, Weighted Average Exercise Price | $ 4.81 | $ 5.56 | $ 4.53
Granted, Weighted Average Exercise Price |  | 4.45 |
Forfeited, Weighted Average Exercise Price | 5.13 | 7.12 | 5.04
Exercised, Weighted Average Exercise Price | 1.83 | 4.15 | 1.89
Outstanding at end of year, Weighted Average Exercise Price | $ 4.57 | $ 4.81 | $ 5.56

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- Definition 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. + 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) -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 Number of options outstanding, including both vested and non-vested options. + 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 Reference 2: 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance 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)(i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. + References No definition available. + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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