Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2022

Long-Term Debt [Abstract]

Long-term debt instruments

Long-term debt consists of the following:

	December 31, 2022			December 31, 2021
Credit facility	$	42,000		$	-
Convertible senior notes, due 2025		465,344			465,344
Deferred financing costs		(6,407	)		(9,678	)
		500,937			455,666
Less current portion		-			-
	$	500,937		$	455,666

Key terms of the convertible debt instruments

The following table summarizes some key facts and terms regarding the outstanding convertible senior notes due 2025 as of December 31, 2022:

	Due 2025
Issuance date	June 12, 2018
Maturity date	June 15, 2025
Principal amount	$	465,344
Cash coupon rate (per annum)		2.25	%
Nonconvertible debt borrowing rate at issuance (per annum)		5.50	%
Conversion rate effective November 29, 2022 (per $1 principal amount)		32.0478
Effective conversion price effective November 29, 2022 (per share)	$	31.20
130% of the conversion price (per share)	$	40.56

Convertible Debt Interest Expense

Interest expense related to the convertible debt instruments is reflected on the accompanying consolidated statements of operations for the years ended December 31:

	Contractual coupon interest		Non-cash amortization of debt discount		Other non-cash interest expense		Total interest expense related to the debentures
2022
Convertible senior notes due 2025	$	10,470		-		1,733	$	12,203
2021
Convertible senior notes due 2025	$	10,470		-		1,733	$	12,203
2020
Convertible senior notes due 2025	$	12,097		13,118		1,623	$	26,838
Convertible senior debentures		88		43		-		131
Total	$	12,185	$	13,161	$	1,623	$	26,969