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Contingent Liabilities and Commitments (Tables)
9 Months Ended
Feb. 28, 2019
Commitments And Contingencies Disclosure [Abstract]  
Summary of Progression of Liabilities

A progression of the liabilities recorded in connection with this matter during fiscal 2019 is summarized in the following table:

 

Beginning

 

 

 

 

 

 

 

 

 

 

Ending

 

(in thousands)

Balance

 

 

Payments

 

 

Adjustments

 

 

Balance

 

Tank replacement costs

$

13,000

 

 

$

2,000

 

 

$

-

 

 

$

11,000