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Concentration of Risk and Segment Data - Segment Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2018 | Feb. 28, 2017 | Feb. 28, 2018 | Feb. 28, 2017
Reconciling items: |  |  |  |
Amortization of intangibles | $ (9,890) | $ (8,766) | $ (19,869) | $ (17,088)
Stock-based compensation expense and related charges | (15,039) | (15,318) | (67,784) | (15,027)
Restructuring and related charges | (5,427) | (44,927) | (16,815) | (80,829)
Other expense | (10,485) | (3,371) | (16,367) | (8,051)
Interest income | 5,011 | 2,289 | 8,824 | 4,744
Interest expense | (37,796) | (33,800) | (74,042) | (66,644)
Income before income tax | 86,262 | 48,301 | 193,701 | 178,839
Operating Segments |  |  |  |
Reconciling items: |  |  |  |
Income before income tax | 178,596 | 152,194 | 405,816 | 361,734
Segment Reconciling Items |  |  |  |
Reconciling items: |  |  |  |
Distressed customer charge | (14,706) | 0 | (14,706) | 0
Stock-based compensation expense and related charges | (15,039) | (15,318) | (67,784) | (15,027)
Business interruption and impairment charges, net | (4,002) | 0 | (11,356) | 0
EMS |  |  |  |
Reconciling items: |  |  |  |
Restructuring and related charges | (2,100) | (4,000) | (8,000) | (11,300)
EMS | Operating Segments |  |  |  |
Reconciling items: |  |  |  |
Income before income tax | 95,283 | 98,089 | 180,993 | 187,635
DMS |  |  |  |
Reconciling items: |  |  |  |
Restructuring and related charges | (3,300) | (36,600) | (7,900) | (48,100)
DMS | Operating Segments |  |  |  |
Reconciling items: |  |  |  |
Income before income tax | $ 83,313 | $ 54,105 | $ 224,823 | $ 174,099

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