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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2021
Summary Of Stock-Based Compensation Expense Year ended December 31, 2021 2020 2019Stock-based compensation$ 178,703 $ 84,463 $ 92,062Stock-based compensation, net of income taxes$ 159,972 $ 69,904 $ 73,866Total capitalized stock-based compensation included in leasehold improvements, property and equipment, net on the consolidated balance sheets$ 2,311 $ 1,837 $ 666Excess tax benefit on stock-based compensation recognized in benefit/(provision) for income taxes on the consolidated statements of income$ 47,958 $ 49,690 $ 16,203
Summary Of SOSAR Activity Under Incentive Plan Shares Weighted-Average Exercise Price per Share Weighted-Average Remaining Contractual Life (Years) Aggregate Intrinsic ValueOutstanding, January 1, 2021 748 $ 533.71 $ 637,905Granted 82 1,510.79 Exercised (446) 448.02 Forfeited or cancelled (20) 913.86 Outstanding, December 31, 2021 364 838.62 4.7 331,352Exercisable, December 31, 2021 100 473.64 3.4 127,918Vested and expected to vest, December 31, 2021 353 823.91 4.6 326,444
Schedule Of Assumptions For SOSAR 2021 2020 2019Risk-free interest rate 0.3% 1.3% 2.4%Expected life (years) 3.7 3.8 3.9 Expected dividend yield 0.0% 0.0% 0.0%Volatility 35.2% 32.4% 34.7%Weighted-average Black-Scholes fair value per share at date of grant $403.01 $231.52 $176.79
Restricted Stock Units (RSUs) [Member]  
Summary Of Stock Award Activity Under Incentive Plan Shares Weighted-Average Grant Date Fair Value per ShareOutstanding, January 1, 2021 92 $ 631.66Granted 25 1,492.15Vested (50) 497.97Forfeited or cancelled (9) 1,021.45Outstanding, December 31, 2021 58 1,064.67Vested and expected to vest, December 31, 2021 53 1,042.33
Performance Stock Awards (PSUs) [Member]  
Summary Of Stock Award Activity Under Incentive Plan Shares Weighted-Average Grant Date Fair Value per ShareOutstanding, January 1, 2021 (1) 150 $ 846.22Granted 18 1,479.55Vested (62) 891.17Expired (1) 946.17Outstanding, December 31, 2021 105 928.28Vested and expected to vest, December 31, 2021 229 880.99(1)The beginning outstanding balance includes the shares issued through the modification of the 2018 Performance Share Awards which was completed on December 30, 2020. This amount was not included in the table above in the 2020 Form 10-K and instead was discussed in a separate paragraph.