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Long-Term Debt | 12 Months Ended
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Dec. 31, 2018
Debt Disclosure [Abstract] |
Long-Term Debt | Long-Term Debt The table below summarizes the components of the Company’s long-term debt.
| December 31,
| 2018 |  | 2017
2023 Convertible Notes | $ | 316,250 |  |  | $ | — |
2022 Notes | — |  |  | 300,000 |
Credit Facility | — |  |  | 100,000 |
Total debt | 316,250 |  |  | 400,000 |
Less: deferred debt discount | (43,998 | ) |  | — |
Less: deferred debt issue costs | (6,681 | ) |  | (3,716 | )
Long-term debt, net (1) | $ | 265,571 |  |  | $ | 396,284 |
Additional paid-in capital | $ | 35,306 |  |  | $ | — |
Discount attribution to equity | (1,175 | ) |  | — |
Equity component, net | $ | 34,131 |  |  | $ | — |
(1) | There were no current portions of long-term debt as of December 31, 2018 and 2017.
2023 Convertible Notes On August 20, 2018, we issued $316.3 million aggregate principal amount of the 2023 Convertible Notes, which includes the notes issued pursuant to an option granted to the initial purchasers of the 2023 Convertible Notes to purchase additional notes. The 2023 Convertible Notes bear interest at a fixed rate of 2.0% per year, payable semiannually in arrears on February 15 and August 15 of each year, beginning on February 15, 2019. The 2023 Convertible Notes will mature on August 15, 2023, unless earlier converted or repurchased. The 2023 Convertible Notes are senior unsecured obligations of the Company and will rank senior in right of payment to any of our indebtedness that is expressly subordinated in right of payment to the 2023 Convertible Notes; equal in right of payment to any of our unsecured indebtedness that is not so subordinated; effectively junior in right of payment to any of the Company’s secured indebtedness (including all amounts outstanding, from time to time, under the Credit Facility) to the extent of the value of the assets securing such indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables) of our subsidiaries. The 2023 Convertible Notes are convertible at an initial conversion rate of 9.8643 shares of our common stock per $1,000 principal amount of the 2023 Convertible Notes (equivalent to an initial conversion price of approximately $101.38 per share of common stock). Holders may convert their 2023 Convertible Notes at any time prior to the close of business on the business day immediately preceding May 15, 2023. The 2023 Convertible Notes may be converted only under the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on September 30, 2018 (and only during such calendar quarter), if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “Measurement Period”) in which the trading price (as defined in the indenture governing the 2023 Convertible Notes) per $1,000 principal amount of the 2023 Convertible Notes for each trading day of the Measurement Period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate in effect on each such trading day; or (3) upon the occurrence of specified corporate events. On or after May 15, 2023, until the close of business on the business day immediately preceding the maturity date of August 15, 2023, holders may convert their 2023 Convertible Notes at any time, regardless of the foregoing circumstances. The circumstances required to allow the holders to convert their 2023 Convertible Notes were not met as of December 31, 2018. If we undergo a fundamental change (as defined in the indenture governing the 2023 Convertible Notes), subject to certain conditions, holders may require us to repurchase for cash all or part of their 2023 Convertible Notes. Debt issuance costs of $8.4 million related to the 2023 Convertible Notes were comprised primarily of discounts and commissions payable to the initial purchasers. We allocated the total amount incurred to the liability and equity components of the 2023 Convertible Notes based on their relative values. Issuance costs attributable to the liability component were $7.2 million and will be amortized to interest expense using the effective interest rate method over the expected life of the 2023 Convertible Notes. Issuance costs attributable to the equity component were netted with the equity component in stockholders' equity. For the year ended December 31, 2018, we recognized contractual interest expense of $2.3 million and amortization of the debt discount and issuance costs of $3.0 million for the 2023 Convertible Notes. The effective interest rate of the liability component was 5.45%. 2022 Notes On November 15, 2018, we redeemed the $300.0 million outstanding principal amount of our 6.0% senior notes due 2022 ("2022 Notes"), pursuant to the terms of the indenture governing the 2022 Notes. We recognized a loss on early extinguishment of debt of $9.1 million, consisting primarily of a redemption premium of $6.0 million and a $3.1 million non-cash write-off of unamortized deferred financing costs. This loss has been recorded in “Loss on early extinguishment of debt” within the Consolidated Statements of Comprehensive Income. Credit Facility On June 26, 2015, we entered into a credit agreement, which provides for a $550.0 million senior secured revolving line of credit maturing on June 26, 2020. In November 2018, we amended and restated the credit agreement to extend the maturity to November 30, 2023 and incurred $1.7 million of debt issuance costs (the “2018 Credit Agreement”). At the Company’s option, borrowings under the 2018 Credit Agreement in USD, euro and British pound will bear interest at either one-, two- or three-month London Interbank Offered Rate ("LIBOR") or an alternative base rate, in each case plus the applicable margin. The applicable margin will fluctuate between 1.25% per annum and 2.00% per annum, in the case of LIBOR borrowings, or between 0.25% per annum and 1.00% per annum, in the case of base rate borrowings, in each case, based upon the Company’s Consolidated Total Net Leverage Ratio (as defined in the 2018 Credit Agreement) at such time. The lenders have a security interest in substantially all of the assets of the Company and substantially all of its domestic subsidiaries. Under the 2018 Credit Agreement, we are required to pay a commitment fee rate that fluctuates between 0.20% and 0.35% per annum and the letter of credit fee rate that fluctuates between 1.25% and 2.00% per annum, in each case, based upon the Company’s Consolidated Total Net Leverage Ratio. There were no borrowings outstanding under the 2018 Credit Agreement as of December 31, 2018. The Company classified the borrowings outstanding as of December 31, 2017 as long-term debt in the accompanying Consolidated Balance Sheets as the amounts due were not contractually required or expected to be liquidated for more than one year from the applicable balance sheet date. Additionally, $1.0 million of the borrowing limit was used (and, therefore, unavailable) as of December 31, 2018 for letters of credit. There were $3.6 million and $3.1 million of unamortized debt issue costs related to the Credit Facility as of December 31, 2018 and 2017, respectively. These amounts were included in “Other assets” on our Consolidated Balance Sheets.

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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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