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Borrowings - Additional Information (Detail) - USD ($) |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |
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Mar. 18, 2021 | Feb. 21, 2020 | Dec. 20, 2017 | May 09, 2014 | Oct. 23, 2012 | Nov. 30, 2018 | May 31, 2022 | May 31, 2021 | May 31, 2015 | Jan. 25, 2022 | May 22, 2020 | Feb. 27, 2019 | Mar. 02, 2017 | May 29, 2015
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturities of long-term debt in 2023 |  |  |  |  |  |  |  | $ 603,800,000 |  |  |  |  |  |  |  |  |
Maturities of long-term debt in 2024 |  |  |  |  |  |  |  | 445,500,000 |  |  |  |  |  |  |  |  |
Maturities of long-term debt in 2025 |  |  |  |  |  |  |  | 1,400,000 |  |  |  |  |  |  |  |  |
Maturities of long-term debt in 2026 |  |  |  |  |  |  |  | 800,000 |  |  |  |  |  |  |  |  |
Maturities of long-term debt in 2027 |  |  |  |  |  |  |  | 399,900,000 |  |  |  |  |  |  |  |  |
Maturities of long-term debt thereafter |  |  |  |  |  |  |  | 1,250,500,000 |  |  |  |  |  |  |  |  |
Credit facility, available liquidity |  |  |  |  |  |  |  | 1,100,000,000 |  |  |  |  |  |  |  |  |
Liquidity available |  |  |  |  |  |  |  | $ 1,307,900,000 |  |  |  |  |  |  |  |  |
Consolidated indebtedness |  |  |  |  |  |  |  | 57.50% |  | 57.80% |  |  |  |  |  |  |
Credit facility borrowing potential maximum capacity |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |  |
Debt, interest rate | [1] |  |  |  |  |  |  |  |  | 2.95% |  |  |  |  |  |  |
Maturity date | [1] |  |  |  |  |  |  |  |  | Jan. 15, 2032 |  |  |  |  |  |  |
Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant leverage ratio |  |  |  |  |  |  |  | 425.00% |  |  |  |  |  |  |  |  |
Accounts Receivable Securitization Program with Two Banks, through May 21, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility borrowing maximum capacity |  | $ 250,000,000 |  |  | $ 200,000,000.0 |  |  | $ 250,000,000.0 |  |  |  |  |  | $ 250,000,000.0 |  |  |
Credit facility expiration date |  | May 21, 2024 |  |  | May 21, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of indirect economic interest held in SPE |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Outstanding balance |  |  |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |
Maturity date |  |  |  |  |  |  |  | May 21, 2024 |  |  |  |  |  |  |  |  |
Unsecured 3.45% senior notes due November 15, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of note |  |  |  |  |  | $ 300,000,000 |  | $ 300,000,000.0 |  | $ 300,000,000.0 |  |  |  |  |  |  |
Debt, interest rate |  |  |  |  |  | 3.45% |  | 3.45% | [2] | 3.45% | [2] |  |  |  |  |  |
Proceeds from issuance of note |  |  |  |  |  | $ 297,700,000 |  |  |  |  |  |  |  |  |  |  |
Maturity date | [2] |  |  |  |  |  |  | Nov. 15, 2022 |  | Nov. 15, 2022 |  |  |  |  |  |  |
Unsecured 5.25% notes due June 1, 2045 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000.0 | $ 250,000,000
Debt, interest rate |  |  |  |  |  |  |  | 5.25% | [3] | 5.25% | [3] |  |  |  |  | 5.25% | 5.25%
Note Interest payment frequency, term |  |  |  |  |  |  |  | Interest on the 2045 Notes is payable semiannually in arrears on June 1st and December 1st of each year at a rate of 5.250% per year |  |  |  |  |  |  |  |  |
Maturity date | [3] |  |  |  |  |  |  | Jun. 01, 2045 |  | Jun. 01, 2045 |  |  |  |  |  |  |
Unsecured 3.75% notes due March 15, 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of note |  |  |  |  |  |  |  | $ 400,000,000.0 |  | $ 400,000,000.0 |  |  |  |  |  | $ 400,000,000.0 |
Debt, interest rate |  |  |  |  |  |  |  | 3.75% | [4] | 3.75% | [4] |  |  |  |  | 3.75% |
Note Interest payment frequency, term |  |  |  |  |  |  |  | Interest on the 2027 Notes is payable semiannually in arrears on March 15th and September 15th of each year, at a rate of 3.750% per year |  |  |  |  |  |  |  |  |
Maturity date | [4] |  |  |  |  |  |  | Mar. 15, 2027 |  | Mar. 15, 2027 |  |  |  |  |  |  |
2.950% Notes due 2032 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest payment terms |  |  |  |  |  |  |  | Interest on the Notes accrues from January 25, 2022 and will be payable semiannually in arrears on January 15 and July 15 of each year, beginning July 15, 2022, at a rate of 2.95% per year. |  |  |  |  |  |  |  |  |
Interest frequency of payment term |  |  |  |  |  |  |  | semiannually |  |  |  |  |  |  |  |  |
Issuance of note |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |  |  |
Debt, interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 2.95% |  |  |  |
Maturity date |  |  |  |  |  |  |  | Jan. 15, 2032 |  |  |  |  |  |  |  |  |
Unsecured 4.55% senior notes due March 1, 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of note |  |  |  |  |  |  |  | $ 350,000,000.0 |  | $ 350,000,000.0 |  |  |  |  | $ 350,000,000.0 |  |
Debt, interest rate |  |  |  |  |  |  |  | 4.55% | [5] | 4.55% |  |  |  |  | 4.55% |  |
Note Interest payment frequency, term |  |  |  |  |  |  |  | Interest on the 2029 Notes accrues from February 27, 2019 and is payable semiannually in arrears on March 1st and September 1st of each year, beginning September 1, 2019, at a rate of 4.550% per year. |  |  |  |  |  |  |  |  |
Maturity date |  |  |  |  |  |  |  | Mar. 01, 2029 | [5] | Mar. 01, 2029 |  |  |  |  |  |  |
Unsecured 4.25% notes due January 15, 2048 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of note |  |  |  | $ 300,000,000.0 |  |  |  | $ 300,000,000.0 |  | $ 300,000,000.0 |  |  |  |  |  |  |
Debt, interest rate |  |  |  | 4.25% |  |  |  | 4.25% | [6] | 4.25% | [6] |  |  |  |  |  |
Note Interest payment frequency, term |  |  |  |  |  |  |  | Interest on the 2048 Notes accrues from December 20, 2017 and is payable semiannually in arrears on January 15th and July 15th of each year, beginning July 15, 2018, at a rate of 4.250% per year. |  |  |  |  |  |  |  |  |
Maturity date | [6] |  |  |  |  |  |  | Jan. 15, 2048 |  | Jan. 15, 2048 |  |  |  |  |  |  |
Unsecured 6.50% senior notes due February 15, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, interest rate |  |  |  | 6.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date |  |  |  |  |  |  |  | Feb. 15, 2018 |  |  |  |  |  |  |  |  |
Repayments of unsecured senior notes |  |  |  | $ 250,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum | Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant leverage ratio |  |  |  |  |  |  |  | 375.00% |  |  |  |  |  |  |  |  |
Interest coverage ratio |  |  |  |  |  |  |  | 350.00% |  |  |  |  |  |  |  |  |
Minimum | Accounts Receivable Securitization Program with Two Banks, through May 21, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monthly unused commitment fee |  |  |  |  |  |  |  | 0.30% |  |  |  |  |  |  |  |  |
Maximum | Accounts Receivable Securitization Program with Two Banks, through May 21, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monthly unused commitment fee |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |
Margin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 85.00% |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, available liquidity |  |  |  |  |  |  |  | $ 856,200,000 |  |  |  |  |  |  |  |  |
Credit facility borrowing maximum capacity |  |  |  |  |  |  | $ 1,300,000,000 |  |  |  |  | $ 800,000,000.0 |  |  |  |  |
Credit facility expiration date |  |  |  |  |  |  | Oct. 31, 2023 |  |  |  |  | Dec. 05, 2019 |  |  |  |  |
Interest coverage ratio |  |  |  |  |  |  |  | 10.64% |  |  |  |  |  |  |  |  |
Leverage ratio |  |  |  |  |  |  |  | 2.81% |  |  |  |  |  |  |  |  |
Maturity date | [7] |  |  |  |  |  |  | Oct. 31, 2023 |  | Oct. 31, 2023 |  |  |  |  |  |  |
New Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility expiration date |  |  | Feb. 21, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |
New Credit Facility | Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant leverage ratio |  |  |  |  |  |  |  | 375.00% |  |  |  |  |  |  |  |  |
New Credit Facility | Term Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility borrowing maximum capacity |  |  | $ 300,000,000 |  |  |  |  | $ 300,000,000 |  |  |  |  |  |  |  |  |
New Credit Facility | Term Loan | Foreign Borrower |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility borrowing maximum capacity |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
New Credit Facility | Interest Rate Swap Agreements | Term Loan | Foreign Borrower |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility borrowing maximum capacity |  |  |  |  |  |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |
New Credit Facility | Minimum | Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest coverage ratio |  |  |  |  |  |  |  | 350.00% |  |  |  |  |  |  |  |  |
Aggregate considerate for acquisition |  |  |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |
New Credit Facility | Maximum | Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant leverage ratio |  |  |  |  |  |  |  | 425.00% |  |  |  |  |  |  |  |  |
[1] | 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.
[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] | 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.
[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 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%.
[7] | 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.

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