Restructuring and Other Charges - Summary of Restructuring and Other Activities by Major Type of Costs (Details) - CH2M HILL Companies, Ltd. - USD ($) $ in Thousands |
3 Months Ended | |
---|---|---|
Dec. 29, 2017 |
Dec. 30, 2016 |
|
Restructuring Cost And Reserve [Line Items] | ||
Restructuring costs | $ 19,349 | $ 31,741 |
Lease Abandonments | ||
Restructuring Cost And Reserve [Line Items] | ||
Restructuring costs | 3,363 | 17,555 |
Involuntary Terminations | ||
Restructuring Cost And Reserve [Line Items] | ||
Restructuring costs | 2,184 | 11,332 |
Outside Services | ||
Restructuring Cost And Reserve [Line Items] | ||
Restructuring costs | 8,590 | 1,291 |
Other Restructuring Related | ||
Restructuring Cost And Reserve [Line Items] | ||
Restructuring costs | $ 5,212 | $ 1,563 |