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Restructuring and Other Charges (Tables) | 12 Months Ended
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Sep. 28, 2018
Restructuring and Related Activities [Abstract] |
Summary of Restructuring and Other Charges Impacts on Reportable Segment Income by Line of Business | The following table summarizes the impacts of the Restructuring and other charges (or recoveries, which primarily relate to the reversals of lease abandonment accruals related to previously vacated facilities which are now planned to be utilized) by line of business in connection with the CH2M acquisition for the year ended September 28, 2018 and the 2015 Restructuring and realignment of the Company's Europe, U.K. and Middle East regional operations for the year ended September 29, 2017 (in thousands):
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Aerospace, Technology, Environmental and Nuclear | $ | 20,254 |  |  | $ | 2,356 |  |  | 8,210 |
Buildings, Infrastructure and Advanced Facilities | 56,238 |  |  | 47,743 |  |  | 24,566 |
Energy, Chemicals and Resources | 37,166 |  |  | 42,558 |  |  | 113,315 |
Corporate | 77,148 |  |  | 42,781 |  |  | 41,816 |
Total | $ | 190,806 |  |  | $ | 135,438 |  |  | $ | 187,907 |
Schedule of Restructuring and Other Activities | The activity in the Company’s accrual for the Restructuring and other charges for the year ended September 28, 2018 is as follows (in thousands):
Balance at Balance at September 29, 2017 | $ | 142,767 |
CH2M Acquisition Assumed Liabilities | 31,576 |
CH2M Charges | 190,806 |
Payments & Usage | (189,673 | )
Balance at September 28, 2018 | $ | 175,476 |
Summary of Restructuring and Other Activities by Major Type of Costs | The following table summarizes the Restructuring and other charges by major type of costs in connection with the CH2M acquisition for the years ended September 28, 2018, and the 2015 Restructuring and realignment of the Company's Europe, U.K. and Middle East regional operations for the years ended September 29, 2017 and September 30, 2016 (in thousands):
| September 28, 2018 |  | September 29, 2017 |  | September 30, 2016
Lease Abandonments | $ | 53,914 |  |  | $ | 55,647 |  |  | $ | 92,643 |
Involuntary Terminations | 37,063 |  |  | 43,667 |  |  | 85,599 |
Outside Services | 36,308 |  |  | 4,236 |  |  | 7,398 |
Other (1) | 63,521 |  |  | 31,888 |  |  | 2,267 |
Total | $ | 190,806 |  |  | $ | 135,438 |  |  | $ | 187,907 |
(1) Includes $21.0 million in the fourth quarter of fiscal 2018 relating to the loss on the sale of our Guimar joint venture investment recognized in other income (expense).
Summary of Cumulative Amounts Incurred for Restructuring and Other Activities Costs | Cumulative amounts incurred to date for Restructuring and other charges by each major type of cost as of September 28, 2018 are as follows (in thousands):
Lease Abandonments | $ | 292,773 |
Involuntary Terminations | 221,642 |
Outside Services | 60,677 |
Other | 96,252 |
Total | $ | 671,344 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 + Details
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- Definition Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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