Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Financial Instruments and Balance Sheet Classification (Detail)

v3.22.2.2
Financial Instruments - Financial Instruments and Balance Sheet Classification (Detail) - USD ($)
$ in Thousands
Jul. 31, 2022
Apr. 30, 2022
Investment Holdings [Line Items]    
Cash and cash equivalents $ 639,784 $ 978,070
Marketable Securities, Current 71,172 57,244
Marketable securities, non-current 185,492 175,783
Income Taxes & Other Receivables 497  
Fair Value 896,945 1,210,893
Other Accrued Liabilities   (204)
Fair Value, Inputs, Level 2    
Investment Holdings [Line Items]    
Cost 80,305 80,358
Unrealized Gains 8  
Unrealized Losses (660) (584)
Fair Value 79,653 79,774
Cash and cash equivalents   15,489
Marketable Securities, Current 60,653 47,241
Marketable securities, non-current 19,000 17,044
Fair Value, Inputs, Level 2 | Foreign Exchange Forward Contracts    
Investment Holdings [Line Items]    
Income Taxes & Other Receivables 497  
Fair Value 497 (204)
Other Accrued Liabilities   (204)
Fair Value, Inputs, Level 2 | Commercial Paper    
Investment Holdings [Line Items]    
Cost 35,709 41,627
Unrealized Losses (180) (126)
Fair Value 35,529 41,501
Cash and cash equivalents   15,489
Marketable Securities, Current 35,529 26,012
Fair Value, Inputs, Level 2 | Corporate Notes/Bonds    
Investment Holdings [Line Items]    
Cost 43,600 37,736
Unrealized Gains 8  
Unrealized Losses (470) (450)
Fair Value 43,138 37,286
Marketable Securities, Current 24,138 20,242
Marketable securities, non-current 19,000 17,044
Fair Value, Inputs, Level 2 | U.S. Treasury and Agency Securities    
Investment Holdings [Line Items]    
Cost 996 995
Unrealized Losses (10) (8)
Fair Value 986 987
Marketable Securities, Current 986 987
Fair Value, Inputs, Level 1 | Mutual Funds    
Investment Holdings [Line Items]    
Marketable Securities, Current [1] 10,519 10,003
Marketable securities, non-current [1] 166,492 158,739
Fair Value [1] 177,011 168,742
Fair Value, Inputs, Level 1 | Equity Securities    
Investment Holdings [Line Items]    
Marketable Securities, Current 10,519 10,003
Marketable securities, non-current 166,492 158,739
Fair Value 177,011 168,742
Fair Value, Inputs, Level 1 | Cash    
Investment Holdings [Line Items]    
Cash and cash equivalents 577,195 874,490
Fair Value 577,195 874,490
Fair Value, Inputs, Level 1 | Money Market Funds    
Investment Holdings [Line Items]    
Cash and cash equivalents 62,589 88,091
Fair Value $ 62,589 $ 88,091
[1] These investments are held in trust for settlement of the Company’s vested obligations of $178.8 million and $160.8 million as of July 31, 2022 and April 30, 2022, respectively, under the ECAP (see Note 6 — Deferred Compensation and Retirement Plans). Unvested obligations under the deferred compensation plans totaled $17.5 million and $24.0 million as of July 31, 2022 and April 30, 2022, respectively. During the three months ended July 31, 2022 and 2021, the fair value of the investments increased; therefore, the Company recognized a gain of $0.1 million and $5.2 million, respectively, which was recorded in other income, net.