Debt and Receivables Securitization - Additional Information (Detail) € in Thousands					3 Months Ended		6 Months Ended
	Aug. 30, 2019 USD ($)	Aug. 23, 2019 EUR (€)	Jan. 15, 2019	Feb. 16, 2018	Nov. 30, 2019 USD ($)	Nov. 30, 2018 USD ($)	Nov. 30, 2019 USD ($)	Nov. 30, 2018 USD ($)	Aug. 23, 2019 USD ($) subsidarie	Aug. 23, 2019 EUR (€) subsidarie
Debt And Receivables Securitization [Line Items]
Remaining borrowing capacity					$ 499,550,000		$ 499,550,000
Unamortized portion of debt issuance costs					131,000		131,000
Debt Issuance Costs, Net									$ 134,000
Number of European subsidiaries | subsidarie									2	2
Loss on extinguishment of debt	$ 4,034,000				0	$ 0	4,034,000	$ 0
Securities Sold under Agreements to Repurchase
Debt And Receivables Securitization [Line Items]
Maximum borrowing capacity					50,000,000		50,000,000
Borrowings outstanding					0		$ 0
Number of days past due trade accounts receivables are ineligible for securitization							90 days
Maximum undivided ownership interests WRC may sell without recourse on revolving basis							$ 50,000,000
Senior Notes Series A 1.56%
Debt And Receivables Securitization [Line Items]
Principal amount | €										€ 36,700
Debt, interest rate									1.56%	1.56%
Debt instrument, maturity date		Aug. 23, 2031
Debt to be repaid | €		€ 30,000
Debt instrument payments date		Aug. 23, 2029
Remaining debt to repaid | €		€ 6,700
Senior Notes Series B
Debt And Receivables Securitization [Line Items]
Principal amount | €										€ 55,000
Debt, interest rate									1.90%	1.90%
Debt instrument, maturity date		Aug. 23, 2034
Debt to be repaid | €		€ 23,300
Debt instrument payments date		Aug. 23, 2031
Remaining debt to repaid | €		€ 31,700
Senior Notes Six Point Five Zero Percent Due April Fifteen Twenty Twenty
Debt And Receivables Securitization [Line Items]
Debt, interest rate	6.50%
Debt instrument, maturity date	Apr. 15, 2020
Principal amount of debt redeemed	$ 150,000,000
Maximum
Debt And Receivables Securitization [Line Items]
Debt maturity period							1 year
Unsecured Revolving Credit Facility
Debt And Receivables Securitization [Line Items]
Maximum borrowing capacity					500,000,000		$ 500,000,000
Maturity date				2023-02
Borrowings outstanding					0		0
Stand-by Letters of Credit
Debt And Receivables Securitization [Line Items]
Letter of credit amount outstanding					12,800,000		12,800,000
Drawn amount of letter of credit outstanding							0
Letter of Credit
Debt And Receivables Securitization [Line Items]
Letter of credit amount outstanding					$ 450,000		$ 450,000
AR Facility | Securities Sold under Agreements to Repurchase
Debt And Receivables Securitization [Line Items]
Maturity date			2020-01