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Restructuring and Other Charges (Tables) | 9 Months Ended
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Jun. 29, 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 three and nine months ended June 29, 2018 and the 2015 Restructuring and realignment of the Company's Europe, U.K. and Middle East regional operations for the three and nine months ended June 30, 2017 (in thousands):
| Three Months Ended |  | Nine Months Ended
| June 29, 2018 |  | June 30, 2017 |  | June 29, 2018 |  | June 30, 2017
Aerospace, Technology, Environmental and Nuclear | $ | 16,936 |  |  | $ | (18 | ) |  | $ | 18,655 |  |  | $ | 1,628 |
Buildings, Infrastructure and Advanced Facilities | 32,423 |  |  | 8,504 |  |  | 53,603 |  |  | 47,697 |
Energy, Chemicals and Resources | 16,379 |  |  | (652 | ) |  | 12,412 |  |  | 35,790 |
Corporate (1) | (19,282 | ) |  | 2,866 |  |  | 50,486 |  |  | 30,784 |
Total | $ | 46,456 |  |  | $ | 10,700 |  |  | $ | 135,156 |  |  | $ | 115,899 |
(1) The three month ended June 29, 2018 amounts reflect certain reclassifications between corporate and the lines of businesses associated with the CH2M acquisition to conform with year to date presentations.
Schedule of Restructuring and Other Activities | The activity in the Company’s accrual for the Restructuring and other charges for the nine-month period ended June 29, 2018 is as follows (in thousands):
Balance at September 29, 2017 | $ | 142,767 |
CH2M acquisition assumed liabilities | 31,576 |
CH2M charges | 135,156 |
Payments and other | (133,324 | )
Balance at June 29, 2018 | $ | 176,175 |
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 three and nine month periods ended June 29, 2018, and the 2015 Restructuring and realignment of the Company's Europe, U.K. and Middle East regional operations for the three and nine months ended June 30, 2017 (in thousands):
| Three Months Ended |  | Nine Months Ended
| June 29, 2018 |  | June 30, 2017 |  | June 29, 2018 |  | June 30, 2017
Lease Abandonments | $ | 14,678 |  |  | $ | 2,712 |  |  | $ | 55,114 |  |  | $ | 47,313 |
Involuntary Terminations | 10,215 |  |  | 4,120 |  |  | 29,335 |  |  | 34,006 |
Outside Services | 11,418 |  |  | 684 |  |  | 28,176 |  |  | 4,236 |
Other | 10,145 |  |  | 3,184 |  |  | 22,531 |  |  | 30,344 |
Total | $ | 46,456 |  |  | $ | 10,700 |  |  | $ | 135,156 |  |  | $ | 115,899 |
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 June 29, 2018 are as follows (in thousands):
Lease Abandonments | $ | 293,973 |
Involuntary Terminations | 213,914 |
Outside Services | 52,545 |
Other | 55,262 |
Total | $ | 615,694 |

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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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