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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2021
Accounting Policies [Abstract] |
Schedule of Weighted Average Number of Shares | The following table presents a reconciliation of the weighted average number of shares of our Class A and Class B common stock used to compute net income per common share (in thousands):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Weighted average common shares outstanding |  | 34,553 |  |  | 34,259 |  |  | 34,484 |  |  | 34,219 |
Less: Weighted average unvested restricted shares subject to repurchase |  | 5 |  |  | 5 |  |  | 5 |  |  | 5 |
Weighted average common shares outstanding; basic |  | 34,548 |  |  | 34,254 |  |  | 34,479 |  |  | 34,214 |
Plus: Weighted average options, restricted stock units and restricted shares used to compute diluted net income per common share |  | 1,126 |  |  | 1,360 |  |  | 1,218 |  |  | 1,433 |
Weighted average common shares outstanding; diluted |  | 35,674 |  |  | 35,614 |  |  | 35,697 |  |  | 35,647 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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