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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity [Abstract] |
Cumulative Convertible Preferred Stock | The following table provides certain information for the convertible Series A preferred stock as of the dates presented (in thousands, except conversion factor):
|  | As of December 31,
|  | 2020 |  | 2019
Shares issued and outstanding |  | 10 |  |  | 10 |
Conversion factor |  | 2.50 |  |  | 2.50 |
Common shares resulting if converted |  | 25 |  |  | 25 |
Schedule of Shares Repurchased | The following table presents repurchases of the Company’s common stock for the periods presented (in thousands, except total number of shares repurchased and per share data):
|  |  |  |  | Total Number of Shares |  |  |  | Average |  |
|  |  |  | Dollar | Repurchased During the Year |  | Aggregate |  | Price per |  |
|  | Expiration |  | Amount | Ended December 31, |  | Purchase |  | Share |  | Plan
Date Authorized |  | Date |  | Authorized | 2020 |  | 2019 |  | Price |  | Repurchased |  | Completed
November 3, 2020 |  | November 3, 2022 |  | $ | 20,000 |  | 45,705 |  |  | — |  |  | $ | 593 |  |  | $ | 12.98 |  |  |
November 6, 2019 |  | December 31, 2021 |  | $ | 40,000 |  | 1,565,078 |  |  | 403,142 |  |  | $ | 40,000 |  |  | $ | 20.32 |  |  | November 2020
May 6, 2019 |  | December 31, 2020 |  | $ | 40,000 |  | — |  |  | 1,466,575 |  |  | $ | 40,000 |  |  | $ | 27.27 |  |  | November 2019
December 12, 2018 |  | May 31, 2020 |  | $ | 20,000 |  | — |  |  | 468,108 |  |  | $ | 14,513 |  |  | $ | 31.00 |  |  | May 2019
Summary of Dividends Declared on its Outstanding Shares of Common Stock to its Shareholders | The Company declared dividends on its outstanding shares of common stock to its shareholders of record as follows for the periods presented (in thousands, except per share amounts):
|  | For the Years Ended December 31,
|  | 2020 |  | 2019 |  | 2018
|  | Per Share Amount |  | Aggregate Amount (1) |  | Per Share Amount |  | Aggregate Amount (1) |  | Per Share Amount |  | Aggregate Amount (1)
First Quarter |  | $ | 0.16 |  |  | $ | 5,219 |  |  | $ | 0.16 |  |  | $ | 5,572 |  |  | $ | 0.14 |  |  | $ | 4,904 |
Second Quarter |  | $ | 0.16 |  |  | $ | 5,164 |  |  | $ | 0.16 |  |  | $ | 5,545 |  |  | $ | 0.14 |  |  | $ | 4,920 |
Third Quarter |  | $ | 0.16 |  |  | $ | 5,130 |  |  | $ | 0.16 |  |  | $ | 5,476 |  |  | $ | 0.16 |  |  | $ | 5,592 |
Fourth Quarter |  | $ | 0.29 |  |  | $ | 9,092 |  |  | $ | 0.29 |  |  | $ | 9,516 |  |  | $ | 0.29 |  |  | $ | 10,130 |
(1)Includes dividend equivalents due to employees who hold performance share units or restricted share units which are subject to time-vesting conditions.

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