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Other Income and Expenses
 12 Months Ended
Sep. 30, 2021
Other Income and Expenses [Abstract]  
Other Income and Other Expense Disclosure Supplemental Statement of Operations Information
Between November 2019 and March 2021, we announced the purchase and closure of several facilities. We purchased a new facility in Kimball, Tennessee, to support and enhance our investment in our Chattanooga, Tennessee large casting foundry and closed our facilities in Hammond, Indiana and Woodland, Washington. We also announced the planned closures of our facilities in Aurora, Illinois and Surrey, British Columbia, Canada. The majority of the activities from these plants will be transferred to our Kimball, Tennessee facility. We expect to substantially complete the Aurora and Surrey facility closures by the third quarter of fiscal year 2022 and expect to incur total expenses related to this restructuring of approximately $14.0 million, including termination benefit costs of approximately $4.8 million and other associated costs of $9.2 million. Of the total $14.0 million estimated costs, approximately $3.6 million are expected to be non-cash charges. Expenses incurred during the years ended September 30, 2021 and September 30, 2020 were approximately $5.6 million and $2.5 million, respectively. The $5.6 million incurred during fiscal 2021 included approximately $3.2 million of termination benefit costs which are included in Strategic reorganization and other charges and approximately $2.4 million in inventory write-downs which are included in Cost of sales.
On June 15, 2021, we experienced a mass shooting tragedy at our Mueller Co. facility in Albertville, Alabama. The event resulted in the deaths of two employees and injuries to two employees. For the year ended September 30, 2021, we incurred expenses of $2.1 million related to this tragedy, which are included in Strategic reorganization and other charges. These amounts are net of anticipated insurance recoveries.
Activity in accrued restructuring, reported as part of other current liabilities, is presented below.
202120202019
(in millions)
Beginning balance$2.8 $1.7 $0.9 
   Expenses incurred$5.4 $4.8 $6.6 
   Amounts paid$(5.1)$(3.7)$(5.8)
Ending balance$3.1 $2.8 $1.7 
Selected supplemental statement of operations information is presented below.

202120202019
(in millions)
Included in selling, general and administrative expenses:
Research and development$17.1 $15.0 $14.3 
Advertising$3.2 $3.3 $7.1 
Interest expense, net:
5.5% Senior Notes$17.6 $24.8 $24.8 
4.0% Senior Notes6.2 — — 
Deferred financing costs amortization1.1 1.2 1.2 
ABL Agreement0.9 0.6 0.6 
   Capitalized interest(2.3)(0.3)(3.0)
Other interest expense0.3 0.3 (0.2)
23.8 26.6 23.3 
Interest income(0.4)(1.1)(3.5)
$23.4 $25.5 $19.8