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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Dividends Declared | The following table summarizes cash dividends paid to common shareholders, recorded as a reduction of retained earnings.
| Three months ended
(in thousands, except per share data) | March 31, 2018 | March 31, 2017
Cash dividends to common stockholders | $ | 2,015 |  | $ | 1,655 |
Cash dividends per common share | $ | 0.29 |  | $ | 0.27 |

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- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
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