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Commitments and Contingencies (Tables)
12 Months Ended
Aug. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of future minimum rental payments for operating leases
Minimum future lease payments required under noncancelable operating leases as of August 31, 2019, are as follows:
 
(Dollars in thousands)
2020
$
87,168

2021
57,381

2022
43,665

2023
34,328

2024
26,793

Thereafter
92,653

Total minimum future lease payments
$
341,988

Unrecorded unconditional purchase obligations disclosure
As of August 31, 2019, minimum future payments required under long-term commitments that are noncancelable, and that third parties have used to secure financing for facilities that will provide contracted goods, are as follows:
 
Payments Due by Period
 
Total
 
2020
 
2021
 
2022
 
2023
 
2024
 
Thereafter
 
(Dollars in thousands)
Long-term unconditional purchase obligations
$
623,193

 
$
81,607

 
$
63,286

 
$
58,965

 
$
59,419

 
$
58,804

 
$
301,112