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Summary of Significant Accounting Policies (Policies) | 6 Months Ended
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Mar. 31, 2023
Accounting Policies [Abstract] |
Principles of Consolidation and Basis of Presentation | Principles of Consolidation and Basis of Presentation The accompanying Consolidated Financial Statements include the accounts of the Company and its majority-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). All intercompany balances and transactions have been eliminated in consolidation. In the opinion of the Company, the accompanying unaudited consolidated financial statements contain all adjustments, consisting of only normal recurring adjustments, necessary for a fair statement of its financial position as of March 31, 2023, and its results of operations for the three months and six months ended March 31, 2023 and 2022, and cash flows for the six months ended March 31, 2023 and 2022, respectively. The consolidated balance sheet at September 30, 2022 was derived from audited annual financial statements but does not contain all of the footnote disclosures from the annual financial statements Certain information and footnote disclosures normally included in the Company’s annual consolidated financial statements have been condensed or omitted and, accordingly, the accompanying financial information should be read in conjunction with the audited consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission for the fiscal year ended September 30, 2022 (the “2022 Annual Report on Form 10-K”).
Use of Estimates | Use of Estimates The preparation of unaudited consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited consolidated financial statements, as well as the reported amounts of revenue and expenses during the reporting period. Significant estimates are associated with recording accounts receivable, inventories, goodwill, intangible assets other than goodwill, contingent consideration liabilities related to business combinations, long-lived assets, derivative financial instruments, deferred income taxes, warranty obligations, revenue over time, and stock-based compensation expense. The Company assesses the estimates on an ongoing basis and records changes in estimates in the period they occur and become known. Actual results could differ from these estimates. The full extent to which the COVID-19 pandemic will directly or indirectly impact the Company’s business, including results of operations and financial condition will depend on future developments that are highly uncertain. This includes results from new information that may emerge concerning COVID-19 and any actions taken to contain or treat COVID-19, as well as the economic impact on local, regional, national and international customers and markets. The Company has made estimates of the impact of COVID-19 within the analysis of its financial statements. ​
Business Combinations | Business Combinations The Company accounts for business acquisitions using the purchase method of accounting, in accordance with which assets acquired and liabilities assumed are recorded at their respective fair values at the acquisition date. The fair value of the consideration paid, including contingent consideration, is assigned to the assets acquired and liabilities assumed based on their respective fair values. Goodwill represents the excess of the purchase price over the estimated fair values of the assets acquired and liabilities assumed. ​ Significant judgment is used in determining fair values of assets acquired and liabilities assumed and contingent consideration, as well as intangibles and their estimated useful lives. Fair value and useful life determinations may be based on, among other factors, estimates of future expected cash flows and appropriate discount rates used in computing present values. These judgments may materially impact the estimates used in allocating acquisition date fair values to assets acquired and liabilities assumed, as well as our current and future operating results. Actual results may vary from these estimates that may result in adjustments to goodwill and acquisition date fair values of assets and liabilities during a measurement period or upon a final determination of asset and liability fair values, whichever occurs first. Adjustments to fair values of assets and liabilities made after the end of the measurement period are recorded within our operating results. ​ Changes in the fair value of contingent consideration resulting from a change in the underlying inputs are recognized in results of operations until the arrangement is settled. ​
Foreign Currency Translation | Foreign Currency Translation Certain transactions of the Company and its subsidiaries are denominated in currencies other than their functional currency. Foreign currency exchange gains (losses) generated from the settlement and remeasurement of these transactions are recognized in earnings and presented within “Other income (expenses)” in the Company’s Consolidated Statements of Operations. Net foreign currency transaction and remeasurement losses were $0.9 million and $1.2 million for the three months ended March 31, 2023 and 2022, respectively. Net foreign currency transaction and remeasurement losses were $0.8 million and $3.2 million during the six months ended March 31, 2023 and 2022, respectively. The determination of the functional currency of the Company’s subsidiaries is based on their financial and operational environment and is the local currency of the Company’s foreign subsidiaries. The subsidiaries’ assets and liabilities are translated into the reporting currency at period-end exchange rates, while revenue, expenses, gains and losses are translated at the average exchange rates during the period. Gains and losses from foreign currency translations are recorded in “Accumulated other comprehensive income (loss)” in the Company’s Consolidated Balance Sheets and presented as “Foreign currency translation adjustments” in the Company’s Consolidated Statements of Comprehensive Income (Loss).
Derivative Financial Instruments | Derivative Financial Instruments The Company has transactions and balances denominated in currencies other than the functional currency of the transacting entity. Most of these transactions carry foreign exchange risk in Germany, the United Kingdom and China. The Company enters into foreign exchange contracts to reduce its exposure to currency fluctuations. The arrangements typically mature in three months or less and they do not qualify for hedge accounting. Net gains and losses related to these contracts are recorded as a component of “Other income (expenses)” in the accompanying unaudited Consolidated Statements of Operations and are as follows for the three and six months ended March 31, 2023 and 2022 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | March 31, | ​ | March 31, | ​
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022 |
Realized gains (losses) on derivatives not designated as hedging instruments | ​ | $ | (533) | ​ | $ | 1,125 | ​ | $ | (2,112) | ​ | $ | 1,054 | ​
​ The fair values of the forward contracts are recorded in the accompanying unaudited Consolidated Balance Sheets as “Prepaid expenses and other current assets” and “Accrued expenses and other current liabilities”. Foreign exchange contract assets and liabilities are measured and reported at fair value based on observable market inputs and classified within Level 2 of the fair value hierarchy described below due to a lack of an active market for these contracts.
Hedging Activities | Hedging Activities On February 1, 2022, the Company entered into a cross-currency swap agreement to hedge the variability of exchange rate impacts between the U.S. dollar and the Euro. Under the terms of the cross-currency swap agreement, the Company notionally exchanged approximately $1.03 billion for approximately €915 million at a weighted average interest rate of approximately 1.196%. The designated notional amount is $960 million and the actual interest rate is 1.283%. The 1.283% rate was in the range of the market value for that day and is the true interest rate on the notional amount. The Company designated the cross-currency swap as a hedge of net investments against one of our Euro denominated subsidiaries which requires an exchange of the notional amounts at maturity. At the maturity of the cross currency-swap on February 1, 2023, the Company delivered a notional amount of €852 million and received a notional amount of $960 million at an exchange rate of 1.1261, which includes realization of a gain of $29.3 million, which was recorded in “Accumulated other comprehensive income (loss)”. On February 1, 2023, the Company entered into another cross-currency swap agreement to hedge the variability of exchange rate impacts between the U.S. dollar and the Euro. Under the terms of the cross-currency swap agreement, the Company notionally exchanged approximately $436 million for approximately €400 million at a weighted average interest rate of approximately 1.66%. The Company designated the cross-currency swap as a hedge of net investments against one of its Euro denominated subsidiaries, which requires an exchange of the notional amounts at maturity on February 1, 2024. The cross-currency swaps are marked to market at each reporting period, representing the fair values of the cross-currency swap and any changes in fair value are recognized as a component of “Accumulated other comprehensive items, net,” on the Consolidated Statements of Comprehensive Income (Loss). Interest accrued on the cross-currency swap is recorded within “Interest income” on the Consolidated Statements of Operations. For the three and six months ended March 31, 2023, the Company recorded a net loss of $13.1 and $70.3 million, respectively to “Accumulated other comprehensive income (loss)” and recorded “Interest income” of $2.2 million and $5.3 million on these instrument for the three and six months ended March 31, 2023, respectively.
Fair Value Measurement | Fair Value Measurement The Company measures certain financial assets and liabilities, including cash equivalents, available-for-sale securities, accounts receivable, accounts payable, contingent consideration liability and derivative instruments at fair value. The Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 820, Fair Value Measurement (“ASC 820”) establishes a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Available-for-sale securities and derivative instruments are measured at fair value based on quoted market prices or observable inputs other than quoted market prices for identical or similar assets or liabilities. Contingent consideration liabilities that are recorded at fair value are based on level 3 inputs. The carrying amounts of cash equivalents, accounts receivable and accounts payable approximate their fair value due to their short-term nature.
Accounts Receivable and Allowance for Expected Credit Losses and Sales Returns | Accounts Receivable and Allowance for Expected Credit Losses and Sales Returns Trade accounts receivable do not bear interest and are recorded at the invoiced amount. The Company maintains an allowance for expected credit losses representing its best estimate of expected credit losses related to its existing accounts receivable and their net realizable value. The Company determines the allowance based on a number of factors, including an evaluation of customer credit worthiness, the age of the outstanding receivables, economic trends, historical experience and other information over the payment periods. The Company reviews and adjusts the allowance for expected credit losses on a quarterly basis. Accounts receivable balances are written off against the allowance for expected credit losses when the Company determines that the balances are not recoverable. Provisions for expected credit losses are recorded in “Selling, general and administrative” expenses in the Consolidated Statements of Operations. The Company determines the allowance for sales returns based on its best estimate of expected customer returns. Provisions for sales returns are recorded in “Revenue” in the Consolidated Statements of Operations. The Company does not have any off-balance-sheet credit exposure related to its customers.
Leases | Leases The Company has operating leases for real estate and non-real estate and finance leases for non-real estate. The classification of a lease as operating or finance and the determination of the right-of-use asset (“ROU asset”) and lease liability are determined at lease inception. The ROU asset represents the Company’s right to use an underlying asset for the lease term and the lease liability represents the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at the commencement date of the lease based on the present value of lease payments over the lease term. As most of the Company’s leases do not provide an implicit rate, an incremental borrowing rate is used based on the estimated rate of interest for collateralized borrowing over a similar term of the lease payments at commencement date. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the option will be exercised. Lease expense is recognized on a straight-line basis over the lease term. The Company’s lease agreements may contain lease and non-lease components. Non-lease components primarily include payments for maintenance and utilities. Fixed payments for non-lease components are combined with lease payments and accounted for as a single lease component which increases the amount of the ROU asset and liability. The ROU asset for operating leases is included within “Other assets” and the ROU asset for finance leases is included within “Property, plant, and equipment, net” in the accompanying unaudited Consolidated Balance Sheets. The short-term lease liabilities for both operating leases and finance leases are included within “Accrued expenses and other current liabilities” in the accompanying unaudited Consolidated Balance Sheets. The long-term lease liabilities for operating leases and finance leases are included within “Long-term operating lease liabilities”, and “Other long-term liabilities”, respectively, in the accompanying unaudited Consolidated Balance Sheets.
Recently Issued and Adopted Accounting Pronouncements | Recently Issued Accounting Pronouncements In March 2020, the FASB issued Accounting Standards Update (“ASU”) 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope. The ASUs provide temporary optional expedients and exceptions to the GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (LIBOR) and other interbank offered rates to alternative reference rates. The provisions of the ASUs are only available until December 31, 2022, when the reference rate replacement activity was expected to be completed. There were no significant accounting impacts on the Company’s consolidated financial statements and related disclosures as a result of the adoption of these ASU’s. In December 2022, the FASB issued ASU 2022-06, “Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848,” extending the relief offered in this series of ASUs through December 31, 2024. We have not adopted this guidance yet. Recently Adopted Accounting Pronouncements In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832) – Disclosures by Business Entities about Government Assistance. The amendment in this ASU requires disclosures to increase the transparency of transactions with a government accounted for by applying a grant or contribution accounting model by analogy, including (1) the types of transactions, (2) the accounting for those transactions, and (3) the effect of those transactions on an entity’s financial statements. This ASU is effective for annual periods beginning after December 15, 2021. The Company will adopt the provisions of this ASU in fiscal 2023. ​ In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805), Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. ASU 2021-08 requires an entity to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers (“ASC 606”). Under current GAAP, an acquirer generally recognizes such items at fair value on the acquisition date. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted. The standard should be applied prospectively to business combinations occurring on or after the effective date of the amendments. The Company adopted the guidance during the first quarter of fiscal year 2022. The impact of the adoption of this ASU is immaterial to the Company’s consolidated financial statements. In October 2020, the FASB issued ASU 2020-10, Codification Improvements. The amendments in this ASU represent changes to clarify certain ASCs, correct unintended application of guidance, or make minor improvements to certain ASCs that are not expected to have a significant effect on current accounting practice or create a significant administrative cost to most entities. ASU 2020-10 is effective for annual periods beginning after December 15, 2020 and interim periods within those annual periods, with early adoption permitted. The amendments in this ASU should be applied retrospectively. This ASU did not affect the Company's consolidated financial statements or disclosures. The Company adopted the provisions of this ASU in the first quarter of fiscal 2022. In June 2020, the FASB issued ASU No. 2020-06, Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40). This standard simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. We adopted this standard effective on October 1, 2022, the beginning of fiscal 2023 using the modified retrospective method. There was no impact to retained earnings at the date of adoption. In August 2018, the FASB issued ASU 2018-14, Disclosure Framework — Changes to the Disclosure Requirements for Defined Benefit Plans, which amends ASC 715, Compensation – Retirement Benefits to add, remove, and clarify disclosure requirements related to defined benefit pension and other postretirement plans. The amendments require additional disclosure for the weighted-average interest crediting rates, a narrative description of the reasons for significant gains and losses, and an explanation of any other significant changes in the benefit obligation or plan assets. The amendment removes disclosure requirements for accumulated other comprehensive income or loss expected to be recognized over the next year, information about plan assets to be returned to the entity, and the effects of a one-percentage-point change on the assumed health care costs and the effect of this change in rates on service cost, interest cost, and the benefit obligation for postretirement health care benefits. The ASU is effective for fiscal years ending after December 15, 2020. Early adoption was permitted. The ASU does not amend the interim disclosure requirements of ASC 715-20. The Company adopted the provisions of this ASU in the first quarter of fiscal 2022. There is no significant accounting impact on the Company’s consolidated financial statements and related disclosures as a result of the adoption of this ASU. In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (Topic 740), which removes certain exceptions to the general principles in Topic 740 and improves consistent application of and simplifies GAAP for other areas of Topic 740 clarifying and amending existing guidance. This ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2020. Early adoption was permitted. The Company adopted the provisions of this ASU in the first quarter of fiscal 2022. There is no significant accounting impact on the Company’s consolidated financial statements and related disclosures as a result of the adoption of this ASU.
Other | Other For further information with regard to the Company’s significant accounting policies, please refer to Note 2 “Summary of Significant Accounting Policies” to the Company’s consolidated financial statements included in the 2022 Annual Report on Form 10-K.

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