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Debt (Tables) | 12 Months Ended
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Dec. 31, 2018
Debt Disclosure [Abstract] |
Summary of Indebtedness outstanding | Indebtedness and scheduled maturities consisted of the following:
($ in thousands) |  | Effective Interest Rates |  | Final Maturity |  | December 31,
|  |  |  | 2018 |  | 2017
Short-term debt |  |  |  |  |  |  |  |  |  |
Bank Credit Facility |  | Variable |  | 2023 |  | $ | — |  |  | $ | — |
Long-term debt (1) |  |  |  |  |  |  |  |
4.50% Senior Notes, Aggregate principal amount of $250,000 less unaccrued discount of $488 and $547 and unamortized debt issuance costs of $1,772 and $1,984 |  | 4.50% |  | 2025 |  | 247,740 |  |  | 247,469 |
Federal Home Loan Bank borrowing |  | 2.70% |  | 2022 |  | 50,000 |  |  | 50,000 |
Total |  |  |  |  |  | $ | 297,740 |  |  | $ | 297,469 |
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(1) | The Company designates debt obligations as "long-term" based on maturity date at issuance.

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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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