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Notes Payable and Amounts Due Under Repurchase Agreements | 6 Months Ended
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Jun. 30, 2019
Debt Disclosure [Abstract] |
Notes Payable and Amounts Due Under Repurchase Agreements | Notes Payable and Amounts Due Under Repurchase Agreements Notes payable includes the following:
| June 30, 2019 |  | December 31, 2018
| (Dollars in thousands)
Senior notes due 2027 |  |  |
Principal | $ | 500,000 |  |  | $ | 500,000 |
Unamortized debt issue costs | (4,858 | ) |  | (5,102 | )
Unamortized discount | (292 | ) |  | (307 | )
| $ | 494,850 |  |  | $ | 494,591 |
On June 16, 2017, we issued $500 million aggregate principal amount of senior unsecured notes due 2027 which bear interest at 5.0% per year and will mature on June 15, 2027 (the "2027 Notes"). The 2027 Notes were issued at a $0.3 million discount, which is being amortized over the term of the 2027 Notes using the effective interest method. Contractual interest is payable semi-annually in arrears each June 15th and December 15th. The initial transaction fees and costs totaling $5.8 million were capitalized as deferred financing costs and are being amortized over the term of the 2027 Notes using the effective interest method. As part of our investment strategy, we enter into securities repurchase agreements (short-term collateralized borrowings). When we do borrow cash on these repurchase agreements, we pledge collateral in the form of debt securities with fair values approximately equal to the amount due and we use the cash to purchase debt securities ahead of the time we collect the cash from selling annuity policies to avoid a lag between the investment of funds and the obligation to credit interest to policyholders. We earn investment income on the securities purchased with these borrowings at a rate in excess of the cost of these borrowings. Such borrowings averaged $20.4 million and $54.6 million during the three and six months ended June 30, 2019, respectively, compared to $111.4 million and $59.8 million for the same periods in 2018. The maximum amount borrowed was $243.6 million and $544.1 million during the six months ended June 30, 2019 and June 30, 2018, respectively. The weighted average interest rate on amounts due under repurchase agreements was 4.62% and 3.04% for the three and six months ended June 30, 2019, respectively, compared to 1.74% for both the same periods in 2018.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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