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Stock Based Compensation - Additional Information (Detail) - $ / shares shares in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jan. 31, 2016 | Jan. 31, 2014 | Apr. 03, 2016 | Apr. 05, 2015
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of service-based stock options granted to executive officers |  |  | 0.1 |
Weighted average grant date fair value of stock options granted to executive officers |  |  | $ 5.30 |
Stock options term |  |  | 7 years |
Service-Based Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Restricted stock unit awards granted |  |  | 1.2 |
Weighted average grant date fair value of restricted stock units granted |  |  | $ 18.47 |
Service-Based Restricted Stock Units | Employees |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Restricted stock unit awards granted |  |  |  | 1.4
Weighted average grant date fair value of restricted stock units granted |  |  |  | $ 17.14
Service-Based Restricted Stock Units | Executive Officer |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of service-based stock options granted to executive officers |  |  |  | 0.1
Weighted average grant date fair value of stock options granted to executive officers |  |  |  | $ 4.43
Restricted Stock Units | Employees |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Period of stock granted to employees and executive officers vest in equal installments |  |  | 4 years |
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Period of stock granted to employees and executive officers vest in equal installments |  |  | 4 years |
TSR Performance-Based Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Total shareholder return performance measurement period | 3 years |  |  |
Minimum age of retirement to be eligible for PRSUs |  | 60 years |  |
Minimum years of service for retirement to be eligible for PRSUs |  | 10 years |  |
Restricted stock unit awards granted |  |  | 0.1 | 0.2
Weighted average grant date fair value of restricted stock units granted |  |  | $ 20.29 | $ 18.21
Estimated annual dividend amount per share |  |  | 0.24 |
Stock price |  |  | $ 19.43 | $ 18.10
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche One |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Percentage of vesting of target shares upon performance achieved | 200.00% |  |  |
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche Two |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Percentage of vesting of target shares upon performance achieved | 0.00% |  |  |
PBIT PRSUs |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Total shareholder return performance measurement period | 3 years |  |  |
Restricted stock unit awards granted |  |  | 0.1 |
Weighted average grant date fair value of restricted stock units granted |  |  | $ 18.71 |
PBIT PRSUs | Share-based Compensation Award, Tranche One |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Percentage of vesting of target shares upon performance achieved | 200.00% |  |  |
PBIT PRSUs | Share-based Compensation Award, Tranche Two |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Percentage of vesting of target shares upon performance achieved | 0.00% |  |  |

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- Definition Amount of dividends expected to be paid to holders of the underlying shares or contracted instruments over the term of the instruments life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued 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://www.xbrl.org/2003/role/presentationRef -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=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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