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Restructuring Plans (Details) |  |  | 3 Months Ended | 12 Months Ended | 44 Months Ended
--- | --- | --- | --- | --- | ---
Feb. 21, 2017 USD ($) | Feb. 05, 2015 | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) | Sep. 30, 2018 USD ($)
Corporate Relocation Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring, number of positions affected |  | 350 |  |  |  |
Restructuring charges |  |  | $ 3,400,000 |  |  |
Restructuring charges incurred to date |  |  | 35,200,000 |  |  | $ 35,200,000
DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges incurred to date |  |  | 4,200,000 |  |  | 4,200,000
Employee-related | Corporate Relocation Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Payments |  |  |  |  |  | 17,400,000
Employee-related | DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges |  |  | 1,000,000 | $ 24,000 |  |
Payments |  |  | 2,300,000 |  |  |
Facility Closing | Corporate Relocation Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Accelerated depreciation |  |  |  |  |  | 2,300,000
Payments |  |  |  |  |  | 7,000,000
Other Restructuring | Corporate Relocation Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Payments |  |  |  |  |  | 7,400,000
Sale Leaseback Transaction, Rent Expense |  |  |  |  | $ 1,400,000 |
Other Restructuring | DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges |  |  | 200,000 | $ 100,000 |  |
Payments |  |  | 1,900,000 |  |  |
Pension withdrawal liability | Corporate Relocation Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Payments |  |  |  |  |  | 3,400,000
Pension withdrawal liability | DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Payments |  |  | 3,400,000 |  |  |
Expected cost remaining |  |  | 800,000 |  |  | 800,000
Maximum | DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Expected restructuring and related costs | $ 4,900,000 |  |  |  |  |
Maximum | Employee-related | DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Expected restructuring and related costs | 2,700,000 |  |  |  |  |
Maximum | Other Restructuring | DSD Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Expected restructuring and related costs | $ 2,200,000 |  |  |  |  |
WCTPP [Member] | Employee-related |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Withdrawal obligation |  |  | 3,200,000 |  |  | 3,200,000
WCTPP [Member] | Employee-related | Corporate Relocation Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Multiemployer Plans, Withdrawal Obligation, Amount Paid |  |  | $ 200,000 |  |  | $ 200,000

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