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Stock-Based Compensation (Tables) | 12 Months Ended
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Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Options Activity | The following table summarizes the option activity within the Company’s stock-based compensation plans for the fiscal years 2018, 2017 and 2016:
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value (in thousands)
Options outstanding at March 28, 2015 | 506,980 |  |  | $ | 44.42 |  |  |  |  |
Granted | 90,500 |  |  | 75.27 |  |  |  |  |
Exercised | (104,500 | ) |  | 33.46 |  |  |  |  |
Canceled or expired | (1,000 | ) |  | 75.90 |  |  |  |  |
Options outstanding at April 2, 2016 | 491,980 |  |  | $ | 51.91 |  |  | 3.28 |  | $ | 35,906 |
Granted | 116,850 |  |  | 98.93 |  |  |  |  |
Exercised | (121,275 | ) |  | 30.02 |  |  |  |  |
Canceled or expired | (22,625 | ) |  | 80.21 |  |  |  |  |
Options outstanding at April 1, 2017 | 464,930 |  |  | $ | 68.01 |  |  | 3.83 |  | $ | 42,194 |
Granted | 42,000 |  |  | 131.93 |  |  |  |  |
Exercised | (87,925 | ) |  | 42.54 |  |  |  |  |
Canceled or expired | (800 | ) |  | 99.65 |  |  |  |  |
Options outstanding at March 31, 2018 | 418,205 |  |  | $ | 79.73 |  |  | 3.78 |  | $ | 60,439 |
Exercisable at April 2, 2016 | 320,975 |  |  | $ | 41.01 |  |  | 2.09 |  | $ | 24,786 |
Exercisable at April 1, 2017 | 244,025 |  |  | $ | 50.77 |  |  | 2.29 |  | $ | 23,626 |
Exercisable at March 31, 2018 | 203,721 |  |  | $ | 61.38 |  |  | 2.49 |  | $ | 30,631 |
Stock Options, Weighted Average Assumptions | The fair values of options granted were estimated at the date of grant using the following weighted average assumptions:
| Fiscal Year
| 2018 |  | 2017 |  | 2016
Volatility | 32.3 | % |  | 38.3 | % |  | 39.8 | %
Risk-free interest rate | 1.9 | % |  | 1.1 | % |  | 1.5 | %
Dividend yield | — | % |  | — | % |  | — | %
Expected option life in years | 5.14 |  |  | 5.24 |  |  | 5.03 |
Estimated forfeiture rate | 7.0 | % |  | 6.0 | % |  | 6.0 | %

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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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