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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Calculation of Basic and Diluted Earnings per Share | The following table presents the calculation of basic and diluted earnings per share:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
|  | (in thousands, except per share data) |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 8,787 |  |  | $ | 7,881 |  |  | $ | 5,379 |  |  | $ | 14,059 |  |  | $ | 35,585 |  |  | $ | 34,873 |  |  | $ | 9,196 |  |  | $ | 28,634 |
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares |  |  | 7,881 |  |  |  | — |  |  |  | 14,059 |  |  |  | — |  |  |  | 34,873 |  |  |  | — |  |  |  | 28,634 |  |  |  | — |
Reallocation of undistributed earnings to Class B shares |  |  | — |  |  |  | 243 |  |  |  | — |  |  |  | 179 |  |  |  | — |  |  |  | 1,013 |  |  |  | — |  |  |  | 455 |
Net income attributable to common stockholders — diluted |  | $ | 16,668 |  |  | $ | 8,124 |  |  | $ | 19,438 |  |  | $ | 14,238 |  |  | $ | 70,458 |  |  | $ | 35,886 |  |  | $ | 37,830 |  |  | $ | 29,089 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares used to compute earnings per share — basic |  |  | 38,383 |  |  |  | 34,427 |  |  |  | 19,336 |  |  |  | 50,536 |  |  |  | 36,530 |  |  |  | 35,800 |  |  |  | 16,903 |  |  |  | 52,634 |
Conversion of Class B to Class A common shares outstanding |  |  | 34,427 |  |  |  | — |  |  |  | 50,536 |  |  |  | — |  |  |  | 35,800 |  |  |  | — |  |  |  | 52,634 |  |  |  | — |
Effect of dilutive stock options and RSUs |  |  | 2,071 |  |  |  | 2,071 |  |  |  | 2,409 |  |  |  | 2,409 |  |  |  | 2,119 |  |  |  | 2,119 |  |  |  | 3,618 |  |  |  | 3,618 |
Weighted average number of shares used to compute earnings per share — diluted |  |  | 74,881 |  |  |  | 36,498 |  |  |  | 72,281 |  |  |  | 52,945 |  |  |  | 74,449 |  |  |  | 37,919 |  |  |  | 73,155 |  |  |  | 56,252 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.23 |  |  | $ | 0.23 |  |  | $ | 0.28 |  |  | $ | 0.28 |  |  | $ | 0.97 |  |  | $ | 0.97 |  |  | $ | 0.54 |  |  | $ | 0.54 |
Diluted |  | $ | 0.22 |  |  | $ | 0.22 |  |  | $ | 0.27 |  |  | $ | 0.27 |  |  | $ | 0.95 |  |  | $ | 0.95 |  |  | $ | 0.52 |  |  | $ | 0.52 |
Schedule of Antidilutive Securities Excluded from Computation of Basic and Diluted Earnings per Share | The following have been excluded from the computation of basic and diluted earnings per share as their effect would have been anti-dilutive (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Stock options to purchase Class B shares and RSUs |  |  | 73 |  |  |  | 665 |  |  |  | 342 |  |  |  | 4,024 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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