
		December 31,
	Maturity Date	2020		2019
2024 Term Loans (effective interest rate of 2.8% at December 31, 2020 and 4.7% at December 31, 2019)	February 15, 2024	$	1,807.4	$	1,832.3
2027 Term Loans (effective interest rate of 3.0% at December 31, 2020)	August 10, 2027	746.2		—
Senior Notes (effective interest rate of 5.4% at December 31, 2020 and December 31, 2019)	December 1, 2027	600.0		600.0
Revolver	February 15, 2024	—		—
Total		3,153.6		2,432.3
Less: unamortized original issue discount on long-term debt(1)		(13.5)		(13.2)
Less: unamortized debt issuance costs(1)		(25.7)		(23.9)
Less: current portion of long-term debt		(24.3)		(18.4)
		$	3,090.1	$	2,376.8

Our secured credit agreement (the Credit Facility) includes our previously-issued term loans (the 2024 Term Loans), a new tranche of term loans issued in August 2020 (the 2027 Term Loans) and a revolving credit facility (the Revolver).

As further described below, in June 2019 we issued 5.25% unsecured senior notes (the Senior Notes) in an aggregate principal amount of $600.0 million, the proceeds of which were used to prepay $600.0 million of the outstanding principal balance of the 2024 Term Loans. The partial prepayment was made in accordance with the contractual terms of the Credit Facility and the terms of the remaining Term Loans were not modified. As such, the prepayment was considered a partial extinguishment and we wrote off a proportionate amount of the unamortized debt issuance costs and original issue discount, recognizing a $14.5 million loss on debt extinguishment.

Concurrent with the issuance of the Senior Notes, we amended the Revolver to increase its borrowing capacity to $600.0 million and reduce its interest rate margins, as described below. In addition, the amendment provided that compliance relating to our first lien secured leverage ratio occurs upon our usage exceeding 20% of the Revolver, a reduction from the previous level of 35%. In connection with this amendment, we capitalized aggregate fees of $3.4 million as debt issuance costs.

In October 2019, we refinanced the 2024 Term Loans to lower the interest rate margins by 0.25%. The refinanced loans were issued at a 0.125% discount at original issue, with no changes made to the maturity date or any other terms of the loans. Fees incurred in connection with the refinancing were not material.

In August 2020, we amended the Credit Facility to allow for the issuance of the 2027 Term Loans in an aggregate principal amount of $750.0 million. The 2027 Term Loans were issued at a 0.5% discount on the face of the note at original issue for net proceeds of $746.3 million, which were used to partially fund the payments associated with the settlement of our obligations under certain tax receivable agreements (TRAs), as discussed in Note 16. In conjunction with the issuance of these loans, we recognized an additional $6.5 million in debt issuance costs.

The 2024 Term Loans bear interest at a rate equal to, at our option, either (a) LIBOR plus 1.75% per annum or (b) 0.75% per annum plus the highest of (i) the Federal Funds Rate plus 0.5%, (ii) the Prime Rate or (iii) one-month LIBOR plus 1.0%. A portion of these loans are hedged by an interest rate swap, as discussed in Note 10.

The 2027 Term Loans bear interest at a rate equal to, at our option, either (a) LIBOR plus 2.50% per annum or (b) 1.5% per annum plus the highest of (i) the Federal Funds Rate plus 0.5%, (ii) the Prime Rate or (iii) one-month LIBOR plus 1.0%. These loans are hedged by an interest rate swap, as discussed in Note 10.

The Revolver bears interest at a rate equal to, at our option, either (a) LIBOR plus a margin ranging from 1.25% to 1.75% per annum or (b) the higher of (i) the Federal Funds Rate plus 0.5%, (ii) the Prime Rate or (iii) the one-month LIBOR rate plus 1.0% plus a margin ranging from 0.25% to 0.75% per annum, with the margins determined based on our first lien secured leverage ratio. The Revolver also contains a financial covenant requiring us to maintain a leverage ratio of 5.75:1.00 when our usage exceeds 20.0% of the maximum capacity. This ratio is calculated as the ratio of first lien secured debt less cash and cash equivalents to consolidated EBITDA (as defined in the Credit Facility).

Principal payments comprising 0.25% of the initial principal balances of the term loans are due quarterly. In addition to paying interest on the outstanding principal under the term loans, we are required to pay a commitment fee ranging from 0.125% to 0.375% per annum for any unutilized commitments under the Revolver, with the applicable fee determined based on our first lien secured leverage ratio.

•we are required to prepay outstanding term loans, subject to certain exceptions, with percentages of excess cash flow, proceeds of non-ordinary course asset sales or dispositions of property, insurance or condemnation proceeds and proceeds from the incurrence of certain debt;

•we are restricted by certain covenants, including, among other things, limitations on our ability to incur additional indebtedness, sell assets, incur additional liens, make certain fundamental changes, pay distributions and make certain investments;

In June 2019, we issued the Senior Notes in an aggregate principal amount of $600.0 million in a private placement offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended. The Senior Notes were issued at par and bear interest at 5.25% per annum, with interest payable semiannually on June 1 and December 1, commencing on December 1, 2019. The aggregate principal amount outstanding is payable at maturity on December 1, 2027, subject to earlier repurchase or optional redemption as described below.

As described above, the proceeds from the issuance of the Senior Notes were used to prepay $600.0 million in aggregate principal amount of our existing Term Loans. In conjunction with the issuance of the Senior Notes, we capitalized $9.7 million in debt issuance costs.

The Senior Notes are redeemable at our option, in whole or in part, at any time prior to June 1, 2022 at a redemption price equal to 100.0% of the principal amount, plus accrued and unpaid interest, plus an applicable premium equal to the greater of 1.0% and the remaining scheduled payments of interest discounted to a present value amount. In the event of an equity offering prior to June 1, 2022, the Senior Notes may be partially redeemed with the net cash proceeds of such offering at our option at an amount equal to 105.25% of the principal amount, plus accrued and unpaid interest. On and after June 1, 2022, we may redeem the Senior Notes, in whole or in part, at an amount equal to 102.625% of the principal amount, decreasing to 101.75% at June 1, 2023, 100.875% at June 1, 2024 and 100.0% thereafter, plus accrued and unpaid interest. Upon the occurrence of a change of control, we are required to offer to repurchase the Senior Notes from the holders at a price equal to 101.0% of the principal amount, plus accrued and unpaid interest.

•we are restricted by certain covenants, including limitations on our ability to incur additional indebtedness, incur additional liens, consolidate with or merge with or into another entity and sell substantially all of our assets; and

The estimated fair values of the 2024 Term Loans, 2027 Term Loans and the Senior Notes were $1,804.0 million, $750.4 million and $633.8 million, respectively, at December 31, 2020 based on observable market prices for these loans, which are traded in less active markets and therefore classified as Level 2 fair value measurements.