	June 30,
	2021			2020
Bank credit facility – term loans	$	797,635		$	844,555
Bank credit facility – revolver loans		945,000			569,000
Principal amount of long-term debt		1,742,635			1,413,555
Less unamortized discounts and debt issuance costs		(6,796	)		(9,116	)
Total long-term debt		1,735,839			1,404,439
Less current portion		(46,920	)		(46,920	)
Long-term debt, net of current portion	$	1,688,919		$	1,357,519

The Company has a $2,438.4 million credit facility (the Credit Facility), which consists of a $1,500.0 million revolving credit facility (the Revolving Facility) and a $938.4 million term loan (the Term Loan). The Revolving Facility has sub-facilities of $100.0 million for same-day swing line loan borrowings and $25.0 million for stand-by letters of credit. At any time and so long as no default has occurred, the Company has the right to increase the Revolving Facility or the Term Loan in an aggregate principal amount of up to the greater of $500.0 million or an amount subject to 3.50 times senior secured leverage, calculated assuming the Revolving Facility is fully drawn, with applicable lender approvals. The Credit Facility is available to refinance existing indebtedness and for general corporate purposes, including working capital expenses and capital expenditures.

The Revolving Facility is a secured facility that permits continuously renewable borrowings of up to $1,500.0 million. As of June 30, 2021, the Company had $945.0 million outstanding under the Revolving Facility and no borrowings on the swing line. The Company pays a quarterly facility fee for the unused portion of the Revolving Facility.

The Term Loan is a five-year secured facility under which principal payments are due in quarterly installments of $11.7 million until the balance is due in full on June 30, 2024. As of June 30, 2021, the Company had $797.6 million outstanding under the Term Loan.

The interest rates applicable to loans under the Credit Facility are floating interest rates that, at the Company’s option, equal a base rate or a Eurodollar rate plus, in each case, an applicable rate based upon the Company’s consolidated total leverage ratio. As of June 30, 2021, the effective interest rate, including the impact of the Company’s floating-to-fixed interest rate swap agreements and excluding the effect of amortization of debt financing costs, for the outstanding borrowings under the Credit Facility was 2.33 percent.

The Credit Facility requires the Company to comply with certain financial covenants, including a maximum total leverage ratio and a minimum interest coverage ratio. The Credit Facility also includes customary negative covenants restricting or limiting the Company’s ability to guarantee or incur additional indebtedness, grant liens or other security interests to third parties, make loans or investments, transfer assets, declare dividends or redeem or repurchase capital stock or make other distributions, prepay subordinated indebtedness and engage in mergers, acquisitions or other business combinations, in each case except as expressly permitted under the Credit Facility. As of June 30, 2021, the Company was in compliance with all of the financial covenants. A majority of the Company’s assets serve as collateral under the Credit Facility.

All debt issuance costs are being amortized from the date incurred to the expiration date of the Credit Facility.

The aggregate maturities of long-term debt at June 30, 2021 are as follows (in thousands):

Year ending June 30,
2022	$	46,920
2023		46,920
2024		1,648,795
Principal amount of long-term debt		1,742,635
Less unamortized discounts and debt issuance costs		(6,796	)
Total long-term debt	$	1,735,839

The Company periodically uses derivative financial instruments as part of a strategy to manage exposure to market risks associated with interest rate fluctuations. The Company has entered into several floating-to-fixed interest rate swap agreements for an aggregate notional amount of $800.0 million which hedge a portion of the Company’s floating rate indebtedness. The swaps mature at various dates through 2026. The Company has designated the swaps as cash flow hedges. Unrealized gains are recognized as assets while unrealized losses are recognized as liabilities. The interest rate swap agreements are highly correlated to the changes in interest rates to which the Company is exposed. Realized gains and losses in connection with each required interest payment are reclassified from accumulated other comprehensive income or loss to interest expense. The Company does not hold or issue derivative financial instruments for trading purposes.

The effect of derivative instruments in the consolidated statements of operations and accumulated other comprehensive loss for the years ended June 30, 2021, 2020 and 2019 is as follows (in thousands):

	Interest Rate Swaps
	2021			2020			2019
Gain (loss) recognized in other comprehensive income	$	(1,458	)	$	(26,915	)	$	(14,011	)
Amounts reclassified to earnings from accumulated other comprehensive loss		14,211			2,635			(3,903	)
Net current period other comprehensive income (loss)	$	12,753		$	(24,280	)	$	(17,914	)