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Long-Term Debt - Additional Information (Detail)			21 Months Ended	33 Months Ended
Long-Term Debt - Additional Information (Detail)	Jun. 24, 2022 USD ($)	Dec. 16, 2019 USD ($)	Jun. 30, 2024	Jun. 30, 2027	Apr. 30, 2023 USD ($)	Apr. 30, 2022 USD ($)
CSV of COLI Contracts \| Deferred Compensation Plan
Debt Instrument [Line Items]
Outstanding policy loans					$ 77,100,000	$ 79,800,000
Credit Facilities
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity					1,145,400,000
Prior Credit Facility
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity						645,300,000
Standby Letters of Credit
Debt Instrument [Line Items]
Long-term debt arrangement					4,600,000	4,700,000
Standby Letters of Credit \| Other Financial Institutions
Debt Instrument [Line Items]
Long-term debt arrangement					11,500,000	10,000,000
Delayed Draw Facility
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity					$ 500,000,000
Minimum \| CSV of COLI Contracts \| Deferred Compensation Plan
Debt Instrument [Line Items]
Debt instrument, interest rate					4.76%
Maximum \| CSV of COLI Contracts \| Deferred Compensation Plan
Debt Instrument [Line Items]
Debt instrument, interest rate					8.00%
4.625% Senior Unsecured Notes due 2027
Debt Instrument [Line Items]
Debt instrument, interest rate		4.625%
Principal amount		$ 400,000,000
Debt instrument, unamortized discount		$ 4,500,000
Redemption price, percentage		100.00%
Dividends payable per fiscal year		$ 25,000,000
Debt Instrument, change in control and rating decline, percentage of principal amount		101.00%
Debt instrument, proceeds from offering used to repay outstanding debt		$ 276,900,000
Interest rate, effective percentage					4.86%
Debt instrument, fair value					$ 381,500,000	379,500,000
4.625% Senior Unsecured Notes due 2027 \| Maximum
Debt Instrument [Line Items]
Leverage ratio to be attained for payment of dividends		3.50
Redemption before December 15, 2022
Debt Instrument [Line Items]
Percentage of principal amount redeemable with equity offering proceeds		35.00%
Percentage of principal amount of debt redeemed		104.625%
Amended Credit Agreement
Debt Instrument [Line Items]
Debt instrument term	5 years
Line of credit facility, maximum borrowing capacity	$ 1,150,000,000
Amended Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	650,000,000
Amended Credit Agreement \| Delayed Draw Term Loan Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 500,000,000
Amended Credit Agreement \| Credit Facilities
Debt Instrument [Line Items]
Senior Unsecured Notes					0	0
Unamortized debt issuance costs					$ 4,200,000
Amended Credit Agreement \| Maximum
Debt Instrument [Line Items]
Leverage ratio to be attained for payment of dividends	3.25
Increase in aggregate principal amount	$ 250,000,000
Credit Agreement \| Secured Financing Overnight Rate
Debt Instrument [Line Items]
Adjustment percentage on variable interest rate	0.10%
Credit Agreement \| Delayed Draw Term Loan Facility
Debt Instrument [Line Items]
Quarterly commitment fee on average daily unused amount of credit facilities	0.20%
Credit Agreement \| Delayed Draw Term Loan Facility \| Scenario Forecast
Debt Instrument [Line Items]
Annual term loan amortization percentage on principal balance			2.50%	5.00%
Credit Agreement \| Prior Credit Facility
Debt Instrument [Line Items]
Unamortized debt issuance costs						$ 2,400,000
Credit Agreement \| Minimum \| Secured Financing Overnight Rate
Debt Instrument [Line Items]
Applicable margin on variable interest rate	1.125%
Credit Agreement \| Minimum \| Base Rate Loans
Debt Instrument [Line Items]
Applicable margin on variable interest rate	0.125%
Credit Agreement \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Quarterly commitment fee on average daily unused amount of credit facilities	0.175%
Credit Agreement \| Maximum
Debt Instrument [Line Items]
Leverage ratio to be attained for payment of dividends	3.50
Temporary increase in consolidated net leverage ratio	4.00
Credit Agreement \| Maximum \| Secured Financing Overnight Rate
Debt Instrument [Line Items]
Applicable margin on variable interest rate	2.00%
Credit Agreement \| Maximum \| Base Rate Loans
Debt Instrument [Line Items]
Applicable margin on variable interest rate	1.00%
Credit Agreement \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Quarterly commitment fee on average daily unused amount of credit facilities	0.30%