Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies

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Summary of Significant Accounting Policies
3 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies Summary of Significant Accounting Policies 
The significant accounting policies used in preparing the Consolidated Financial Statements are consistent with the accounting policies described in the Company’s Annual Report on Form 10-K as of and for the year ended September 30, 2020, except as described below.

Recently Adopted Accounting Standards

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Measurement of Credit Losses on Financial Statements (“ASU 2016-13”). ASU 2016-13 replaces the current incurred loss impairment model with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to determine credit loss estimates. ASU 2016-13 became effective for the Company’s fiscal year beginning on October 1, 2020. As a result of the Company's assessment on its trade receivables and receivables from long-term manufacturing contracts, ASU 2016-13 did not have a material impact on the Consolidated Financial Statements.

In February 2018, the FASB issued ASU 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income (“ASU 2018-02”). ASU 2018-02 allows for the reclassification of stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017 (the “Tax Act”) from accumulated other comprehensive loss to retained earnings. The Company adopted ASU 2018-02 on October 1, 2019, which resulted in a one-time decrease to accumulated other comprehensive loss and an increase to retained earnings of $6.0 on the Consolidated Balance Sheet, primarily related to deferred taxes previously recorded for pension and other postretirement benefits. The adoption of ASU 2018-02 did not have an impact to the Consolidated Statements of Operations or Consolidated Statements of Cash Flows.

Recently Issued Accounting Standards
 
In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”). ASU 2019-12 clarifies and simplifies accounting for income taxes by eliminating certain exceptions for intraperiod tax allocation principles, the methodology for calculating income tax rates in an interim period, and recognition of deferred taxes for outside basis differences in an investment, among other updates. ASU 2019-12 will be effective for the Company’s fiscal year beginning on October 1, 2021. The Company is currently evaluating the impact of ASU 2019-12 on the Consolidated Financial Statements.

No other new accounting pronouncements recently adopted or issued had or are expected to have a material impact on the Consolidated Financial Statements.