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Equity (Details) - Schedule of stock options, activity - $ / shares | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options shares under option - beginning of year | 815,800 | 776,171 | 730,980
Weighted average exercise price shares under option - beginning of year | $ 49.89 | $ 41.33 | $ 31.92
Options granted | 9,000 | 194,050 | 196,350
Weighted average exercise price options granted | $ 69.11 | $ 72.89 | $ 63.91
Options exercised | (95,570) | (130,891) | (140,579)
Weighted average exercise price options exercised | $ 28.99 | $ 34.06 | $ 24.21
Options forfeited | (16,020) | (23,530) | (10,580)
Weighted average exercise price options forfeited | $ 58.38 | $ 45.48 | $ 37.64
Options shares under option - end of year | 713,210 | 815,800 | 776,171
Weighted average exercise price shares under option - end of year | $ 52.74 | $ 49.89 | $ 41.33

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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=120381028&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=120381028&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=120381028&loc=d3e5070-113901 + Details
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