Annual report pursuant to Section 13 and 15(d)

Deferred Compensation And Retirement Plans - Reconciliation Of Benefit Obligation (Detail)

v3.19.2
Deferred Compensation And Retirement Plans - Reconciliation Of Benefit Obligation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2017
Defined Benefit Plan Disclosure [Line Items]      
Total benefit obligation $ 275,453 $ 249,720  
Deferred Compensation Plan      
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligation, beginning of year 126,494 121,042  
Service cost 17,281 11,373 $ 5,402
Interest cost 5,044 3,787 3,925
Actuarial loss (gain) 7,803 (1,574)  
Administrative expenses paid (272) (166)  
Benefits paid from plan assets (1,877) (1,833)  
Benefits paid from cash (6,104) (6,135)  
Benefit obligation, end of year 148,369 126,494 121,042
Fair value of plan assets, beginning of year 26,090 25,446  
Actual return on plan assets 1,160 2,425  
Benefits paid from plan assets (1,877) (1,833)  
Administrative expenses paid (272) (166)  
Employer contributions 30 218  
Fair value of plan assets, end of year 25,131 26,090 25,446
Funded status and balance, end of year [1] (123,238) (100,404)  
Current liability 8,331 6,496  
Non-current liability 114,907 93,908  
Total benefit obligation $ 123,238 $ 100,404  
Plan assets weighted average allocation 100.00% 100.00%  
Deferred Compensation Plan | Debt Securities      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets weighted average allocation 54.00% 55.00%  
Deferred Compensation Plan | Equity Securities      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets weighted average allocation 45.00% 44.00%  
Deferred Compensation Plan | Other securities      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets weighted average allocation 1.00% 1.00%  
Executive Capital Accumulation Plan      
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligation, beginning of year $ 128,430 $ 111,584  
Employee contributions 4,852 5,036  
Amortization of employer contributions 9,573 12,175  
Gain on investment 8,697 11,095  
Benefits paid from cash (20,891) (11,923)  
Exchange rate fluctuations (500) 463  
Benefit obligation, end of year 130,161 128,430 $ 111,584
Current liability 8,844 14,827  
Non-current liability 121,317 113,603  
Total benefit obligation $ 130,161 $ 128,430  
[1] The Company purchased COLI contracts insuring the lives of certain employees eligible to participate in the deferred compensation and pension plans as a means of funding benefits under such plans. As of April 30, 2019 and 2018, the Company held contracts with gross CSV of $219.2 million and $186.8 million, offset by outstanding policy loans of $93.2 million and $66.7 million, respectively