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Interest Expense | 9 Months Ended
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Sep. 30, 2017
Interest and Debt Expense [Abstract] |
Interest Expense | Interest Expense The following tables present the components of interest expense:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2016 |  | 2017 |  | 2016 |  | 2017
| (Dollars in thousands)
Interest incurred on debt | $ | 5,306 |  |  | $ | 6,097 |  |  | $ | 15,020 |  |  | $ | 18,183 |
Accretion of fair value adjustment on Senior Notes | 1,581 |  |  | 1,618 |  |  | 4,715 |  |  | 4,826 |
Amortization of debt issuance costs | 77 |  |  | 77 |  |  | 125 |  |  | 231 |
Total interest expense | $ | 6,964 |  |  | $ | 7,792 |  |  | $ | 19,860 |  |  | $ | 23,240 |
Interest Rates The Revolving Facility and Term Loan Facility had an effective interest rate of 5.52% and 5.99% as of December 31, 2016 and September 30, 2017, respectively. The Senior Notes have a fixed interest rate of 6.375%.

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- Definition The entire disclosure for interest income and interest expense for enterprises that derive a significant portion of their revenue from interest collected on investments, loans, and securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1-12) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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