Debt

12 Months Ended

Dec. 31, 2019

The table below summarizes the components of the Company’s debt:



	December 31,
	2019			2018
2023 Convertible Notes	$	316,250		$	316,250
Total debt	316,250			316,250
Less: deferred debt discount	(35,393		)	(43,998		)
Less: deferred debt issue costs	(5,248		)	(6,681		)
Long-term debt, net ⁽¹⁾	$	275,609		$	265,571
Additional paid-in capital	$	35,306		$	35,306
Discount attribution to equity	(1,175		)	(1,175		)
Equity component, net	$	34,131		$	34,131


⁽¹⁾	There were no current portions of long-term debt as of December 31, 2019 and 2018.

2023 Convertible Notes

On August 20, 2018, we issued the 2023 Convertible Notes in an aggregate principal amount of $316.3 million. 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, and will mature on August 15, 2023, unless earlier converted or repurchased. The 2023 Convertible Notes are senior unsecured obligations of the Company.

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 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, 2019.

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.

The debt discount is amortized to interest expense over the term of the 2023 Convertible Notes using the effective interest rate method.

We incurred debt issue costs and allocated the total amount to the liability and equity components of the 2023 Convertible Notes based on their relative values. The debt issue costs attributable to the liability component are amortized to interest expense over the term of the 2023 Convertible Notes using the effective interest rate method. Issuance costs attributable to the equity component were netted with the equity component in stockholders' equity.

The table below summarizes the amount of interest cost recognized by us for both the contractual interest expense and amortization of the debt discount for the 2023 Convertible Notes:



	December 31,
	2019		2018
Contractual interest expense	$	6,325	$	2,302
Amortization of debt discount ⁽¹⁾	8,606		3,018
Total	$	14,931	$	5,320

⁽¹⁾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 credit facility ("Original Credit Facility") maturing on June 26, 2020. In November 2018, we amended and restated the credit agreement to the Original Credit Facility, to, among other things, extend the maturity to November 30, 2023 and incurred an additional $1.7 million of debt issuance costs (the Original Credit Facility as amended and restated, the “Credit Facility”). At the Company’s option, borrowings under the Credit Facility 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 Credit Facility) 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 Credit Facility, we are required to pay a commitment fee rate that fluctuates between 0.20% and 0.35% per annum and a 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 Credit Facility as of December 31, 2019 and 2018. Additionally, $1.0 million of the borrowing limit was used (and, therefore, unavailable) as of December 31, 2019 for letters of credit.

There were $2.0 million and $3.6 million of unamortized debt issue costs related to the Credit Facility as of December 31, 2019 and 2018, respectively. These amounts were included in “Other assets” on our Consolidated Balance Sheets.