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Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2018
Stockholders Equity Note [Abstract] |
Reconciliation of Number of Shares of Common Stock | A reconciliation of the number of shares of our common stock follows:
|  | Six months ended June 30, |
|  | 2018 |  |  | 2017 |
|  | (In thousands) |
Common stock, beginning of period |  |  | 44,251 |  |  |  | 45,721 |
Shares issued for stock options exercised |  |  | - |  |  |  | 38 |
Shares of common stock issued upon lapse of restricted stock units ("RSUs") |  |  | 329 |  |  |  | 341 |
Common stock retired |  |  | (1,412 | ) |  |  | (1,065 | )
Common stock, end of period |  |  | 43,168 |  |  |  | 45,035 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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- References No definition available. + Details
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