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Long-Term Debt | 3 Months Ended
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Mar. 31, 2018
Debt Disclosure [Abstract] |
Long-Term Debt | Long-Term Debt The following table details the Company’s long-term debt at the respective principal amounts, net of unamortized debt issuance costs (in thousands):
| March 31, |  | December 31,
| 2018 |  | 2017 |  | 2017
Senior unsecured notes: |  |  |  |  |
5.375% senior notes due 2024 (1) | $ | 295,400 |  |  | $ | — |  |  | $ | 295,243 |
6.75% senior notes due 2021 (2) | — |  |  | 196,721 |  |  | — |
| $ | 295,400 |  |  | $ | 196,721 |  |  | $ | 295,243 |
Revolving unsecured credit facility, maturing 2022 | $ | 83,000 |  |  | $ | 137,000 |  |  | $ | 107,000 |
(1) | As of March 31, 2018 and December 31, 2017, deferred debt issuance costs of $4.6 million and $4.8 million, respectively, are included as a direct deduction from the carrying amount of the senior unsecured notes due 2024 in the accompanying condensed consolidated balance sheets.
(2) | As of March 31, 2017, deferred debt issuance costs of $3.3 million are included as a direct deduction from the carrying amount of the senior unsecured notes due 2021 in the accompanying condensed consolidated balance sheets.
Senior Unsecured Notes On May 30, 2017, the Company issued $300.0 million of 5.375% senior notes due on June 1, 2024 (the “Notes”), all of which are currently outstanding. Interest on the Notes is payable semi-annually in arrears on June 1 and December 1. The Notes are fully and unconditionally guaranteed on a senior unsecured basis jointly and severally by all of the Company's existing and future domestic subsidiaries that guarantee its primary revolving bank credit facility. The Notes will permit the Company to make restricted payments, such as purchasing shares of its stock and paying cash dividends, in an unlimited amount if, after giving pro forma effect to the incurrence of any indebtedness to make such payment, the Company's consolidated total debt ratio (“Net Debt Ratio”) is less than 2.25 to 1. The Net Debt Ratio is defined generally in the indenture governing the Notes as the ratio of (1) the total consolidated debt of the Company minus cash and cash equivalents of the Company to (2) the Company’s consolidated trailing twelve months EBITDA, as adjusted to exclude certain non-recurring expenses and giving pro forma effect to operations acquired during the measurement period. Revolving Credit Facility At March 31, 2018, the Company maintained a line of credit with a group of U.S. based commercial lenders (the “2016 Credit Facility”) in the amount of $400.0 million, which matures on September 2, 2022. At March 31, 2018, the Company had $83.0 million in outstanding borrowings and $5.1 million in outstanding letters of credit under the 2016 Credit Facility, leaving $311.9 million available for future borrowings. The 2016 Credit Facility bears interest, at the Company’s option, at either (i) the prevailing London Interbank Offered Rate (“LIBOR”) (with interest periods of 1 week or 1, 2, 3 or 6 months at the Company’s option) plus a fixed spread of 2.5% or (ii) the prevailing prime or base rate plus a fixed spread of 1.5%. The agreement has a LIBOR floor of 0%. Additionally, the Company is required to pay an annual commitment fee of 0.50% on the average daily unused portion of the 2016 Credit Facility commitment. The weighted-average interest rate on amounts outstanding under the 2016 Credit Facility at March 31, 2018 was 4.25% based on 1 week LIBOR. Under the terms of the 2016 Credit Facility, the Company is required to maintain certain financial ratios and comply with certain financial covenants. The 2016 Credit Facility also contains customary restrictions on the Company’s ability to incur additional debt, grant liens, make investments, consummate acquisitions and similar negative covenants with customary carve-outs and baskets. The Company was in compliance with the requirements and covenants of the 2016 Credit Facility as of March 31, 2018. During the three months ended March 31, 2018, the Company made net payments of $24.0 million pursuant to the 2016 Credit Facility.

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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