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Share-Based Compensation (Tables) | 12 Months Ended
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Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Option Activity and Information about Options Outstanding | The following table summarizes the share options activity during Fiscal 2018, and information about options outstanding at March 31, 2018:
| Number of Options |  | Weighted Average Exercise price |  | Weighted Average Remaining Contractual Life (years) |  | Aggregate Intrinsic Value (in millions)
Outstanding at April 1, 2017 | 4,791,045 |  |  | $ | 28.55 |  |  |  |  |
Granted | 208,264 |  |  | $ | 34.68 |  |  |  |  |
Exercised | (1,116,857 | ) |  | $ | 12.34 |  |  |  |  |
Canceled/forfeited | (85,832 | ) |  | $ | 67.04 |  |  |  |  |
Outstanding at March 31, 2018 | 3,796,620 |  |  | $ | 32.78 |  |  | 2.63 |  | $ | 124.6 |
Vested or expected to vest at March 31, 2018 | 3,776,873 |  |  | $ | 32.78 |  |  | 2.63 |  |
Vested and exercisable at March 31, 2018 | 3,132,123 |  |  | $ | 29.28 |  |  | 2.19 |  | $ | 112.8 |
Assumptions Used to Estimate Fair Value of Options | The following table represents assumptions used to estimate the fair value of options:
| Fiscal Years Ended
| March 31, 2018 |  | April 1, 2017 |  | April 2, 2016
Expected dividend yield | 0.0 | % |  | 0.0 | % |  | 0.0 | %
Volatility factor | 36.3 | % |  | 30.1 | % |  | 31.1 | %
Weighted average risk-free interest rate | 1.8 | % |  | 1.1 | % |  | 1.6 | %
Expected life of option | 4.69 years |  |  | 4.75 years |  |  | 4.75 years |
Restricted Shares and Restricted Share Units | The following table summarizes the RSU activity during Fiscal 2018:
| Service-based |  | Performance-based
| Number of Restricted Share Units |  | Weighted Average Grant Date Fair Value |  | Number of Restricted Share Units |  | Weighted Average Grant Date Fair Value
Unvested at April 1, 2017 | 1,470,767 |  |  | $ | 48.39 |  |  | 401,777 |  |  | $ | 58.50 |
Granted | 1,390,454 |  |  | $ | 38.57 |  |  | 363,848 |  |  | $ | 51.56 |
Decrease due to performance condition | — |  |  | $ | — |  |  | (12,891 | ) |  | $ | 92.93 |
Vested | (453,695 | ) |  | $ | 48.20 |  |  | (95,202 | ) |  | $ | 84.95 |
Canceled/forfeited | (280,009 | ) |  | $ | 44.46 |  |  | — |  |  | $ | — |
Unvested at March 31, 2018 | 2,127,517 |  |  | $ | 42.53 |  |  | 657,532 |  |  | $ | 50.16 |
The following table summarizes restricted share activity during Fiscal 2018:
| Restricted Shares
| Number of Unvested Restricted Shares |  | Weighted Average Grant Date Fair Value
Unvested at April 1, 2017 | 185,425 |  |  | $ | 84.12 |
Granted | — |  |  | $ | — |
Vested | (114,121 | ) |  | $ | 79.97 |
Canceled/forfeited | (7,156 | ) |  | $ | 90.87 |
Unvested at March 31, 2018 | 64,148 |  |  | $ | 90.75 |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | The following table summarizes compensation expense attributable to share-based compensation for Fiscal 2018, Fiscal 2017 and Fiscal 2016 (in millions):
| Fiscal Years Ended
| March 31, 2018 |  | April 1, 2017 |  | April 2, 2016
Share-based compensation expense | $ | 49.6 |  |  | $ | 33.9 |  |  | $ | 48.4 |
Tax benefits related to share-based compensation expense | $ | 9.7 |  |  | $ | 11.2 |  |  | $ | 15.7 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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