/ Reconciliations of GAAP to Non-GAAP Measures (Unaudited)
| Three Months Ended | |||||||||||||||||||||||||
| March 31, 2021 | |||||||||||||||||||||||||
| (in thousands, except percentages and per share data) | Revenue | Gross Profit | % | Operating Income | % | Net Income | EPS - Diluted 1 | ||||||||||||||||||
| Total GAAP | $ | 363,226 | $ | 301,123 | 82.9 | % | $ | 50,022 | 13.8 | % | $ | 72,398 | $ | 0.82 | |||||||||||
| Acquisition accounting for deferred revenue | 8,923 | 8,923 | 0.4 | % | 8,923 | 2.0 | % | 8,923 | 0.10 | ||||||||||||||||
| Stock-based compensation expense | — | 3,562 | 1.0 | % | 35,119 | 9.5 | % | 35,119 | 0.41 | ||||||||||||||||
| Excess payroll taxes related to stock-based awards | — | 865 | 0.2 | % | 9,135 | 2.5 | % | 9,135 | 0.10 | ||||||||||||||||
| Amortization of intangible assets from acquisitions | — | 14,949 | 4.0 | % | 19,356 | 5.2 | % | 19,356 | 0.22 | ||||||||||||||||
| Transaction expenses related to business combinations | — | — | — | % | 1,970 | 0.5 | % | 1,970 | 0.02 | ||||||||||||||||
| Adjustment for income tax effect | — | — | — | % | — | — | % | (47,979 | ) | (0.55 | ) | ||||||||||||||
| Total non-GAAP | $ | 372,149 | $ | 329,422 | 88.5 | % | $ | 124,525 | 33.5 | % | $ | 98,922 | $ | 1.12 | |||||||||||
