Borrowings - Additional Information (Detail) - USD ($)							3 Months Ended	12 Months Ended
		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.