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Concentration of Risk and Segment Data (Segment Income) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016
Reconciling items: |  |  |
Amortization of intangibles | $ (38,490) | $ (35,524) | $ (37,121)
Stock-based compensation expense and related charges | (98,511) | (48,544) | (58,997)
Restructuring and related charges | (36,902) | (160,395) | (11,369)
Loss on disposal of subsidiaries | 0 | (2,112) | 0
Other expense | (37,563) | (28,448) | (8,380)
Interest income | 17,813 | 12,525 | 9,128
Interest expense | (149,002) | (138,074) | (136,536)
Income before income tax | 373,401 | 256,233 | 387,045
Cayey, Puerto Rico |  |  |
Reconciling items: |  |  |
Insurance proceeds from Hurricane Maria | 24,900 |  |
Operating Segments |  |  |
Reconciling items: |  |  |
Income before income tax | 768,147 | 667,003 | 630,320
Segment Reconciling Items |  |  |
Reconciling items: |  |  |
Stock-based compensation expense and related charges | (98,511) | (48,544) | (58,997)
Acquisition and integration costs | (8,082) | 0 | 0
Distressed customer charges | (32,710) | (10,198) | 0
Business interruption and impairment charges, net (1) | (11,299) | 0 | 0
EMS |  |  |
Reconciling items: |  |  |
Restructuring and related charges | (16,300) | (51,300) | (10,700)
EMS | Operating Segments |  |  |
Reconciling items: |  |  |
Income before income tax | 451,149 | 436,110 | 373,732
DMS |  |  |
Reconciling items: |  |  |
Restructuring and related charges | (16,600) | (82,400) | (800)
DMS | Operating Segments |  |  |
Reconciling items: |  |  |
Income before income tax | $ 316,998 | $ 230,893 | $ 256,588

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