Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Narrative) (Details)

v3.19.2
Employee Benefit Plans (Narrative) (Details) - USD ($)
$ in Millions
10 Months Ended 12 Months Ended 14 Months Ended
Mar. 29, 2018
May 31, 2019
May 31, 2018
May 31, 2017
May 31, 2019
Deferred Compensation Plans [Member]          
Defined Contribution Plan Disclosure [Line Items]          
Percentage of annual base salary and bonus that eligible employees may defer   50.00%      
Percentage of Board cash compensation that eligible outside directors may defer   100.00%      
Amounts accrued under deferred compensation plans   $ 27.0 $ 18.2   $ 27.0
401(K) Plan [Member]          
Defined Contribution Plan Disclosure [Line Items]          
Maximum percentage of salary deferral   50.00%      
Years of service to be eligible for matching contribution   1 year      
Minimum number of hours worked for eligibility   1000 hours      
Employer's matching contribution as a percent of the first 3% of employees' salary contributed         100.00%
Percentage of employees' salary contributed matched 100% by employer         3.00%
Employer's matching contribution as a percent of the next 2% of employees' salary contributed         50.00%
Percentage of employees' salary contributed matched 50% by employer         2.00%
Percentage of employer matching contributions of eligible employee pay 50.00%        
Total percentage of employees' salary contributed matched by employer         4.00%
Company contributions to the plan   $ 29.3 $ 23.6 $ 22.4  
Percentage participant directed   100.00%      
401(K) Plan [Member] | Maximum [Member]          
Defined Contribution Plan Disclosure [Line Items]          
Percentage of employees' salary contributed matched by employer 8.00%