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Description of Long Term Debt (Detail) - USD ($) $ in Thousands | May 31, 2022 | May 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Long-term debt including finance lease |  | $ 2,686,609 |  | $ 2,379,826
Less: current portion |  | 603,454 |  | 1,282
Long-term debt, less current maturities |  | 2,083,155 |  | 2,378,544
Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [1] | 442,249 |  | 336,996
Unsecured 3.45% senior notes due November 15, 2022 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [2] | 300,119 |  | 300,387
Unsecured $100M Term Loan due February 21, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt |  |  |  | 99,880
Unsecured $300M Term Loan due February 21, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [3] | 299,798 |  | 299,640
Unsecured 3.75% notes due March 15, 2027 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [4] | 397,842 |  | 397,527
Unsecured 4.55% senior notes due March 1, 2029 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [5] | 347,295 |  | 346,904
Unsecured 2.95% notes due January 15, 2032 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [6] | 296,455 |  |
Unsecured 5.25% notes due June 1, 2045 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt | [7] | 298,836 |  | 298,745
Unsecured 4.25% notes due January 15, 2048 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt |  | 296,836 | [8] | 296,714
Other Borrowings |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt including finance lease |  | $ 7,179 |  | $ 3,033
[1] | Interest at May 31, 2022 was tied to LIBOR and averaged 2.3699% for the USD denominated swingline account ($37.7 million), 2.3096% for the USD denominated revolver ($60.0 million), and 1.25% on EUR denominated debt ($346.1 million). Interest at May 31, 2021 was tied to LIBOR and averaged 1.4609% for USD denominated debt ($37.7 million), 1.3950% for AUD denominated debt ($44.0 million) and 1.3750% on EUR denominated debt ($257.9 million). At May 31, 2022 and 2021, the revolving credit facility is adjusted for debt issuance costs, net of amortization, for approximately $1.5 million and $2.6 million, respectively.
[2] | The $300.0 million face amount of the notes due 2022 is adjusted for the mark-to-market derivative asset of approximated ($0.3 million) and ($0.8 million) at May 31, 2022 and 2021, respectively. The original issue discount effectively reduced the ultimate proceeds from the financing. The effective interest rate on the notes, including the amortization of the discount, is 3.465%. At May 31, 2022 and 2021, the notes are reduced by debt issuance costs, net of amortization, for approximately $0.1 million and $0.4 million, respectively.
[3] | At May 31, 2022 and 2021, the Term Loan is adjusted for deferred financing fees, net of amortization, of approximately $0.2 million and $0.5 million, respectively.
[4] | The $400.0 million face amount of the notes due 2027 is adjusted for the amortization of the original issue discount, which approximated $0.3 million and $0.2 million at May 31, 2022 and 2021, respectively. The original issue discount effectively reduced the ultimate proceeds from the financing. The effective interest rate on the notes, including the amortization of the discount, is 3.767%. At May 31, 2022 and 2021, the notes are adjusted for debt issuance costs, net of amortization, for approximately $1.9 million and $2.3 million, respectively.
[5] | The $350.0 million aggregate principal amount of the notes due 2029 is adjusted for the amortization of the original issue discount, which approximated $0.4 million at both May 31, 2022 and 2021. The original issue discount effectively reduced the ultimate proceeds from the financing. The effective interest rate on the notes, including the amortization of the discount, was 4.568%. At May 31, 2022 and 2021, the notes were adjusted for debt issuance costs, net of amortization, for approximately $2.3 million and $2.7 million, respectively.
[6] | The $300.0 million face amount of the notes due 2032 is adjusted for the amortization of the original issue discount, which approximated $0.6 million at May 31, 2022. The original issue discount effectively reduced the ultimate proceeds from the financing. The effective interest rate on the notes, including the amortization of the discount, is 2.976%. At May 31, 2022, the notes are adjusted for debt issuance costs, net of amortization, for approximately $2.9 million.
[7] | The $250.0 million face amount of the notes due 2045 is adjusted for the amortization of the original issue discount, which approximated $1.3 million and $1.4 million at May 31, 2022 and 2021, respectively. The original issue discount effectively reduced the ultimate proceeds from the financing. The effective interest rate on the notes, including the amortization of the discount, is 5.29%. In March 2017, as a further issuance of the 5.25% notes due 2045, we closed an offering of $50.0 million aggregate principal, which is adjusted for the unamortized premium received at issuance, which approximated $2.8 million and $2.9 million at May 31, 2022 and 2021, respectively. The premium effectively increased the proceeds from the financing. The effective interest rate on the $50.0 million notes issued March 2017 is 4.839%. At May 31, 2022 and 2021, the notes are adjusted for debt issuance costs, net of amortization, for approximately $2.6 million and $2.8 million, respectively.
[8] | The $300.0 million face amount of the notes due 2048 is adjusted for the debt issuance cost, net of amortization, which approximated $3.2 million and $3.3 million at May 31, 2022 and 2021, respectively. The effective interest rate on the notes is 4.25%.

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