DEBT

6 Months Ended

Jun. 30, 2023

Debt Disclosure [Abstract]

DEBT

DEBT

Convertible Senior Notes

2025 Notes

On July 24, 2020, the Company issued $575.0 million aggregate principal amount of its 0.50% Convertible Senior Notes due July 15, 2025 (the “2025 Notes”) in a private placement. The 2025 Notes bear interest at a rate of 0.50% per year, payable semi-annually on January 15 and July 15 of each year, beginning on January 15, 2021. The 2025 Notes will mature on July 15, 2025, unless earlier repurchased, redeemed or converted. The initial conversion rate of the 2025 Notes is 2.1683 shares of the Company's common stock per $1,000 principal amount of 2025 Notes (which is equivalent to an initial conversion price of approximately $461.19 per share).

On March 8, 2023, the Company repurchased approximately $190.6 million in principal amount of its 2025 Notes, through individual privately-negotiated transactions with certain holders of the 2025 Notes, for $156.3 million in cash plus accrued and unpaid interest of approximately $0.1 million. In the first quarter of 2023, the Company recognized a gain on the extinguishment of debt of $34.3 million, a loss on the write-off of unamortized debt issuance costs of $2.4 million and incurred

debt repayment costs of $1.0 million, all of which are included in interest income/expense, net in the consolidated statements of operations and comprehensive income.

Holders of the 2025 Notes were not entitled to convert the 2025 Notes during the calendar quarter ended June 30, 2023 as the last reported sale price of the Company's common stock, for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on March 31, 2023, was not greater than or equal to 130% of the conversion price of the 2025 Notes on each applicable trading day.

In the first six months of 2023, the Company recorded interest expense on the 2025 Notes of $2.3 million which consisted of $1.1 million associated with the 0.50% coupon rate and $1.2 million associated with the amortization of the debt issuance costs. In the first six months of 2022, the Company recorded interest expense on the 2025 Notes of $3.0 million which consisted of $1.5 million associated with the 0.50% coupon rate and $1.5 million associated with the amortization of the debt issuance costs.

As of June 30, 2023, the fair value of the 2025 Notes is estimated to be approximately $296.0 million using the Level 1 observable input of the last quoted market price on June 30, 2023.

A summary of the gross carrying amount, debt issuance costs, and net carrying value of the 2025 Notes, all of which is recorded as a non-current liability in the June 30, 2023 consolidated balance sheet, are as follows (in thousands):

	June 30, 2023		December 31, 2022
Gross carrying amount	$	384,398	$	575,000
Debt issuance costs	4,158		7,734
Net carrying amount	$	380,240	$	567,266

2022 Notes

On May 31, 2017, the Company issued $300.0 million aggregate principal amount of its 0.625% Convertible Senior Notes due June 1, 2022 (the "2022 Notes") in a private placement. In the first six months of 2022, the Company recorded interest expense on the 2022 Notes of $0.8 million which consisted of $0.4 million associated with the 0.625% coupon rate and $0.4 million associated with the amortization of the debt issuance costs. The 2022 Notes were fully settled in June 2022.

Convertible Note Hedge and Warrant Transactions

2020 Hedge and Warrants

On July 24, 2020, in connection with the issuance of the 2025 Notes, the Company entered into Convertible Note Hedge (the “2020 Hedge”) and warrant transactions with respect to the Company’s common stock.

The 2020 Hedge transactions cover 1.2 million shares of the Company’s common stock, the same number of shares initially underlying the 2025 Notes, and are exercisable upon any conversion of the 2025 Notes. The 2020 Hedge transactions are expected generally to reduce the potential dilution to the Company's common stock upon conversion of the 2025 Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the converted 2025 Notes, as the case may be, in the event that the market price per share of common stock, as measured under the terms of the 2020 Hedge transactions, is greater than the strike price of the 2020 Hedge transactions, which initially corresponds to the initial conversion price of the 2025 Notes, or approximately $461.19 per share of common stock. The 2020 Hedge transactions will expire upon the maturity of the 2025 Notes.

On July 24, 2020, the Company sold to the counterparties, warrants (the “2020 Warrants”) to acquire 1.2 million shares of the Company's common stock at an initial strike price of $709.52 per share, which represents a premium of 100% over the last reported sale price of the common stock of $354.76 on July 21, 2020. If the market price per share of the common stock, as measured under the terms of the 2020 Warrants, exceeds the strike price of the 2020 Warrants, the 2020 Warrants could have a dilutive effect, unless the Company elects, subject to certain conditions, to settle the 2020 Warrants in cash.

In connection with the March 8, 2023 repurchases of the 2025 Notes noted above, the Company entered into agreements with the counterparties for the 2020 Hedge and 2020 Warrants transactions to terminate a portion of these call spread transactions effective March 8, 2023 in notional amounts corresponding to the principal amount of the 2025 Notes repurchased.

Subsequent to such termination, the outstanding portion of the 2020 Hedge covers 0.8 million shares of the Company's common stock and 2020 Warrants to acquire 0.8 million shares of the Company's common stock remain outstanding.

Credit Facility

On September 15, 2021, the Company entered into a credit agreement (the “Credit Agreement”), consisting of a $200.0 million revolving credit facility (the “Revolving Facility”), which matures on September 15, 2026, and a $250.0 million delayed draw term loan facility (the “Term Loan Facility” and together with the Revolving Facility, the “Credit Facility”), which matures on September 15, 2028.

As of June 30, 2023, the Company had $247.5 million of borrowings outstanding under the Term Loan Facility bearing interest at the LIBO option rate of 9.0% and had no borrowings under the Revolving Facility. As of December 31, 2022, the Company had $248.8 million of borrowings outstanding under the Credit Facility and no borrowings under the Revolving Facility. As of June 30, 2023, borrowings of $2.5 million under the Term Loan Facility are recorded as current portion of long-term debt on the consolidated balance sheet.

At each of June 30, 2023 and December 31, 2022, the Company had outstanding one letter of credit issued in the amount of $0.2 million.

The Company was in compliance with all covenants at June 30, 2023.

In the first six months of 2023, the Company recorded interest expense related to its Revolving Facility of $0.7 million which consisted of $0.2 million in unused commitment fees and $0.5 million associated with the amortization of the debt issuance costs. In the first six months of 2023, the Company recorded interest expense related to the Term Loan Facility of $10.7 million associated with borrowings bearing interest at the LIBO rate.

In the first six months of 2022, the Company recorded interest expense related to its revolving credit facilities of $0.7 million which consisted of $0.2 million in unused commitment fees, and $0.5 million associated with the amortization of the debt issuance costs. In the first six months of 2022, the Company recorded interest expense related to the Term Loan Facility of $9.6 million which consisted of $1.0 million associated with borrowings bearing interest at the LIBO rate, $5.1 million in unused commitment fees, $2.0 million associated with the amortization of the debt issuance costs, and $1.5 million associated with the amortization of the original issue discount.