Summary of Significant Accounting Policies and Recently Issued Accounting Standards Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jan. 04, 2020 |
Oct. 03, 2020 |
Sep. 30, 2018 |
|
| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | |||
| Percentage of active participants (less than) | 10.00% | ||
| Amortization period of deferred pension losses | 7 years | ||
| Accounting Standards Update 2014-09 | |||
| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | |||
| Adoption of new revenue recognition standard (ASC 606) adjustment | $ (714) | ||
| Scenario, Forecast | Subsequent Event | |||
| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | |||
| Amortization period of deferred pension losses | 23 years |