Our long-term debt, as of March 31, 2021 and December 31, 2020, was as follows (in thousands):

	March 31,			December 31,
	2021			2020
2018 Credit Agreement:
Term loan, due March 2023, interest at adjusted LIBOR plus 1.5% (combined rate of 1.70% at March 31, 2021 and 1.75% at December 31, 2020)	$	123,750		$	126,563
Less – deferred financing costs		(1,017	)		(1,155	)
2018 Term Loan, net of unamortized discounts		122,733			125,408
$200 million revolving loan facility, due March 2023, interest at adjusted LIBOR plus applicable margin	—			—
2016 Convertible Notes:
Convertible Notes – Senior convertible notes; due March 15, 2036; cash interest at 4.25%		230,000			230,000
Less – unamortized original issue discount		(2,249	)		(3,021	)
Less – deferred financing costs		(870	)		(1,170	)
2016 Convertible Notes, net of unamortized discounts		226,881			225,809
Total debt, net of unamortized discounts		349,614			351,217
Current portion of long-term debt, net of unamortized discounts		(241,881	)		(14,063	)
Long-term debt, net of unamortized discounts	$	107,733		$	337,154

2018 Credit Agreement. During the quarter ended March 31, 2021, we made $2.8 million of principal repayments on our $150 million aggregate principal five-year term loan (the “2018 Term Loan”). As of March 31, 2021, our interest rate on the 2018 Term Loan is 1.70% (adjusted LIBOR plus 1.50% per annum), effective through June 2021, and our commitment fee on the unused $200 million aggregate principal five-year revolving loan facility (the “2018 Revolver”) is 0.20%. As of March 31, 2021, we had no borrowings outstanding on our 2018 Revolver and had the entire $200.0 million available to us.

The interest rates under the 2018 Credit Agreement are based upon our choice of an adjusted LIBOR rate plus an applicable margin of 1.50% – 2.50%, or an alternate base rate plus an applicable margin of 0.50% – 1.50%, with the applicable margin, depending on our then-net secured total leverage ratio. We will pay a commitment fee of 0.200% – 0.375% of the average daily unused amount of the 2018 Revolver, with the commitment fee rate also dependent upon our then-net secured total leverage ratio. If the LIBOR rate is no longer available, then our interest rate under the Credit Agreement will be determined by the alternate base rate plus an applicable margin as discussed above.

2016 Convertible Notes. We will settle conversions of the 2016 Convertible Notes by paying or delivering, as the case may be, cash, shares of our common stock, or a combination thereof, at our election. It is our current intent and policy to settle our conversion obligations as follows: (i) pay cash for 100% of the par value of the 2016 Convertible Notes that are converted; and (ii) to the extent the value of our conversion obligation exceeds the par value, we can satisfy the remaining conversion obligation in our common stock, cash, or a combination thereof.

The 2016 Convertible Notes will be convertible at the option of the note holders upon the satisfaction of specified conditions and during certain periods. During the period from, and including, December 15, 2021 to the close of business on the business day immediately preceding March 15, 2022 and on or after December 15, 2035, holders may convert all or any portion of their 2016 Convertible Notes at the conversion rate then in effect at any time regardless of these conditions. For the 2016 Convertible Notes presented during this time frame, the settlement amount will be equal to the sum of the daily settlement amounts for each of the following 40 consecutive trading days during the related observation period.

As the 2016 Convertible Notes can be converted at the holder's option beginning December 15, 2021 and ending March 15, 2022, subject to an observation holding period of 40 days, the net carrying value of the 2016 Convertible Notes of $226.9 million has been classified as a current liability in our Balance Sheet as of March 31, 2021.

As a result of our quarterly dividend in March 2021 (see Note 7), the previous conversion rate for the 2016 Convertible Notes of 17.6656 shares of our common stock per $1,000 principal amount of the 2016 Convertible Notes, which is equivalent to an initial conversion price of $56.61 per share of our common stock, has been adjusted to 17.6898 shares of our common stock per $1,000 principal amount of the 2016 Convertible Notes, which is equivalent to an initial conversion price of $56.53 per share of our common stock. Holders may require us to repurchase the 2016 Convertible Notes for cash on each of March 15, 2022, March 15, 2026, and March 15, 2031, or upon the occurrence of a fundamental change (as defined in the 2016 Convertible Notes Indenture) in each case at a purchase price equal to the principal amount thereof plus accrued and unpaid interest.

We may redeem for cash all or part of the 2016 Convertible Notes if the last reported sale price of our common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which we provide notice of redemption. On or after March 15, 2022, we may redeem for cash all or part of the 2016 Convertible Notes regardless of the sales price condition described in the preceding sentence. In each case, the redemption price will equal the principal amount of the 2016 Convertible Notes to be redeemed, plus accrued and unpaid interest.

As of March 31, 2021, none of the conversion features have been achieved, and thus, the 2016 Convertible Notes are not convertible by the holders.