XML 29 R14.htm IDEA: XBRL DOCUMENT v3.8.0.1
Benefit Plans
 3 Months Ended
Nov. 30, 2017
Retirement Benefits [Abstract]  
Benefit plans
Benefit Plans

We have various pension and other defined benefit and defined contribution plans, in which substantially all employees may participate. We also have non-qualified supplemental executive and Board retirement plans.

Components of net periodic benefit costs for the three months ended November 30, 2017, and 2016, are as follows:
 
Qualified
Pension Benefits
 
Non-Qualified
Pension Benefits
 
Other Benefits
 
2017
 
2016
 
2017
 
2016
 
2017
 
2016
Components of net periodic benefit costs for the three months ended November 30 are as follows:
 (Dollars in thousands)
  Service cost
$
9,919

 
$
9,383

 
$
137

 
$
259

 
$
236

 
$
353

  Interest cost
6,002

 
7,692

 
178

 
352

 
227

 
427

  Expected return on assets
(12,040
)
 
(12,014
)
 
—

 
—

 
—

 
—

  Prior service cost (credit) amortization
359

 
402

 
8

 
57

 
(141
)
 
(30
)
  Actuarial (gain) loss amortization
6,888

 
4,765

 
15

 
173

 
(306
)
 
(116
)
Net periodic benefit cost
$
11,128

 
$
10,228

 
$
338

 
$
841

 
$
16

 
$
634



Employer Contributions

Total contributions to be made during fiscal 2018 will depend primarily on market returns on the pension plan assets and minimum funding level requirements. During the three months ended November 30, 2017, we made no contributions to the pension plans. At this time, we do not anticipate being required to make a contribution for our benefit plans in fiscal 2018.