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Debt (Tables) | 12 Months Ended
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Dec. 31, 2018
Debt Disclosure [Abstract] |
Schedule of Debt | Notes Payable. Notes payable consisted of the following:
|  | December 31, 2018 |  |  | December 31, 2017 |
|  | (Dollars in thousands) |
4.75% Senior Notes, due July 15, 2022 |  | $ | 375,000 |  |  | $ | 375,000 |  |
Unamortized issuance discount on notes payable |  |  | (239 | ) |  |  | (300 | )
Total notes payable |  | $ | 374,761 |  |  | $ | 374,700 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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