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Equity (Details) - Schedule of stock options, activity - $ / shares
 12 Months Ended
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