Background and Summary of Significant Accounting Policies | BACKGROUND AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Description of Business - Advanced Drainage Systems, Inc. and subsidiaries (collectively referred to as “ADS” or the “Company”), incorporated in Delaware, designs, manufactures and markets innovative water management solutions in the stormwater and onsite septic wastewater industries, providing superior drainage solutions for use in the construction and agriculture marketplace. ADS’s products are used across a broad range of end markets and applications, including non-residential, infrastructure and agriculture applications. The Company is managed and reports results of operations in three reportable segments: Pipe, Infiltrator and International. The Company also reports the results of its Allied Products and all other business segments as Allied Products & Other. The Company’s fiscal year begins on April 1 and ends on March 31. Unless otherwise noted, references to “year” pertain to the fiscal year. For example, 2024 refers to fiscal 2024, which is the period from April 1, 2023 to March 31, 2024. Principles of Consolidation - The consolidated financial statements include the Company, its wholly-owned subsidiaries, its majority owned subsidiaries, and variable interest entities (“VIEs”) of which the Company is the primary beneficiary. The Company uses the equity method of accounting for equity investments where it exercises significant influence but does not hold a controlling financial interest. Such investments are recorded in Other assets in the Consolidated Balance Sheets and the related equity in earnings from these investments are included in Equity in net income of unconsolidated affiliates in the Consolidated Statements of Operations. All intercompany balances and transactions have been eliminated in consolidation. Presentation - Certain prior year captions have been renamed to conform to the fiscal 2024 presentation. Derivative income and other, net was renamed Interest income and other, net. Estimates - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingencies and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Significant estimates include, but are not limited to, the allowance for credit losses, valuation of inventory, useful lives of property, plant and equipment and amortizing intangible assets, determination of the proper accounting for leases, valuation of equity method investments, goodwill, intangible assets and other long-lived assets for impairment, accounting for stock-based compensation, determination of allowances for sales returns, rebates and discounts, determination of the valuation allowance, if any, on deferred tax assets, and reserves for uncertain tax positions. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Management believes the accounting estimates are appropriate and reasonably determined; however, due to the inherent uncertainties in making these estimates, actual results could differ from those estimates. Receivables and Allowance for Credit Losses - Receivables include trade receivables, net of an allowance for credit losses, and other miscellaneous receivables. Receivables at March 31, 2024 and 2023 are as follows: (Amounts in thousands) 2024 2023 Trade receivables, net $ 318,683 $ 304,974 Other miscellaneous receivables 4,893 1,971 Receivables, net $ 323,576 $ 306,945 The Company extends credit to customers based on an evaluation of their financial condition and collateral is generally not required. The Company records an allowance for credit losses at the time accounts receivable are recorded based on the Company’s historical write-off activity, an evaluation of the current economic environment and the Company’s expectations of future economic conditions. Inventories - Inventories are stated at the lower of cost or net realizable value. The Company’s inventories are maintained on the first-in, first-out (“FIFO”) method. Costs include the cost of acquiring materials, including in-bound freight from vendors and freight incurred for the transportation of raw materials, tooling or finished goods between the Company’s manufacturing plants and its distribution centers, direct and indirect labor, factory overhead and certain corporate overhead costs related to the production of inventory. Property, Plant and Equipment and Depreciation Method - Property, plant and equipment are recorded at cost less accumulated depreciation, with the exception of assets acquired through acquisitions, which are initially recorded at fair value. Equipment acquired under finance lease is recorded at the present value of the future minimum lease payments. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings and leasehold improvements 20 to 45 or the lease term if shorter Machinery and production equipment 3 to 18 Transportation equipment 3 to 12 Costs of additions and major improvements are capitalized, whereas maintenance and repairs that do not improve or extend the life of the asset are charged to expense as incurred. When assets are retired or disposed, the cost and related accumulated depreciation are removed from the asset accounts and any resulting gain or loss is reflected in (Gain) loss on disposal of assets and costs from exit and disposal activities in the Consolidated Statements of Operations. Construction in progress is also recorded at cost and includes capitalized interest, capitalized payroll costs and related costs such as taxes and other fringe benefits. Goodwill & Intangible Assets - The Company records acquisitions resulting in the consolidation of an enterprise using the acquisition method of accounting. Under this method, the Company records the assets acquired, including intangible assets that can be identified, and liabilities assumed based on their estimated fair values at the date of acquisition. The purchase price in excess of the fair value of the identifiable assets acquired and liabilities assumed is recorded as goodwill. Goodwill - Goodwill is reviewed annually for impairment as of March 31 or whenever events or changes in circumstances indicate the carrying value may be greater than fair value. GAAP allows entities testing goodwill for impairment the option of performing a qualitative assessment before calculating the fair value of a reporting unit for the goodwill impairment test, a quantitative assessment. For the fiscal year ended March 31, 2024, the Company completed a qualitative fair value assessment for all reporting units, except for Cultec, for which the Company completed a quantitative analysis. The Company applied the quantitative assessment to all reporting units as of March 31, 2023. For all reporting units, the Company completed a qualitative assessment as of March 31, 2022. Intangible Assets — Definite-Lived - Definite-lived intangible assets are amortized using the straight-line method or an accelerated method over their estimated useful lives and are tested for recoverability whenever events or changes in circumstances indicate that carrying amounts of the asset group may not be recoverable. If the estimated undiscounted future cash flows are less than the carrying amounts of such assets, an impairment loss is recognized to the extent the fair value of the asset less any costs of disposition is less than the carrying amount of the asset. The Company did not incur any impairment charges for Definite-Lived Intangible assets. Intangible Assets — Indefinite-Lived - Indefinite-lived intangible assets are tested for impairment annually as of March 31 or whenever events or changes in circumstances indicate the carrying value may be greater than fair value. GAAP allows entities testing indefinite-lived intangible assets for impairment the option of performing a qualitative assessment before calculating the fair value of the indefinite-lived intangible assets for the impairment test. ADS completed a qualitative fair value assessment of indefinite-lived trademarks as of March 31, 2024 and March 31, 2022. ADS applied the quantitative assessment to specific trademarks for the annual impairment tests performed as of March 31, 2023. The Company did not incur any impairment charges for Indefinite-Lived Intangible assets. Other Assets - Other assets include operating lease right of use assets, assets held for sale, capitalized software development costs, including cloud computing costs, investments in unconsolidated affiliates accounted for under the equity method, deposits, central parts, and other miscellaneous assets. • See “Note 6. Leases” for further information on the operating lease right of use assets. • Assets held for sale is comprised of the assets of Spartan Concrete, Inc. as of March 31, 2023 and see “Note 3. (Gain) Loss on Disposal of Assets and Costs from Exit and Disposal Activities” for further information. • The Company capitalizes development costs for internal use software and defers implementation costs for hosting arrangements. Capitalization of software development costs and deferral of implementation costs for hosting arrangements begin in the application development stage and end when the asset is placed into service. The Company amortizes such costs using the straight-line method over estimated useful lives of 2 to 10 years, which is included in Selling, general and administrative expenses or Cost of goods sold within the Consolidated Statements of Operations depending on the nature of the asset and its intended use. • The Company evaluates its investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying amount might not be recoverable and recognizes an impairment loss when a decline in value below carrying value is determined to be other-than-temporary. Under these circumstances, the Company would adjust the investment down to its estimated fair value, which then becomes its new carrying value. • Central parts represent spare production equipment items which are used to replace worn or broken production equipment parts and help reduce the risk of prolonged equipment outages. Leases - The Company determines whether an arrangement contains an operating or finance lease at inception by determining if the contract conveys the right to control the use of identified plant, property, and equipment for a period of time in exchange for consideration and other facts and circumstances as defined by Accounting Standards Codification 842, Leases (“ASC 842”). For each lease which has an accounting lease term of greater than 12 months, the Company records the right-of-use asset and lease liability on the balance sheet. The accounting lease term includes cancellable and renewal periods which are reasonably assured. The lease liability is measured utilizing the incremental borrowing rate unless the Company can specifically determine the rate implicit in the lease. For leases classified as finance leases at lease inception, the Company records a finance lease asset in Property, plant and equipment, net and lease financing obligation equal to the present value of the minimum lease payments. The finance lease right of use asset is amortized to its expected residual value at the end of the lease term using the straight-line method, and the lease financing obligation is amortized using the effective interest method over the lease term with the rental payments being allocated to principal and interest. For leases classified as operating leases, the Company records the operating lease right of use asset in Other assets and the operating lease obligation in Other accrued liabilities and Other liabilities. Operating lease rent expense is recognized over the useful life using the straight-line method. Foreign Currency Translation - Assets and liabilities of foreign subsidiaries with a functional currency other than the U.S. dollar are translated into U.S. dollars at the current rate of exchange on the last day of the reporting period. Revenues and expenses are translated at a monthly average exchange rate and equity transactions are translated using either the actual exchange rate on the day of the transaction or a monthly average historical exchange rate. For the fiscal years ended March 31, 2024 and 2023, the Company’s Accumulated other comprehensive loss (“AOCL”) consisted of foreign currency translation gains and losses. Net Sales - The Company generates revenue by selling pipe and related water management products primarily to distributors, retailers, buying groups and co-operative buying groups. Products are shipped predominately by the Company’s internal fleet, and the Company does not provide any additional revenue generating services after product delivery. Payment terms and conditions vary by contract. Revenue is recognized at the point in-time obligations under the terms of a contract with a customer are satisfied, which generally occurs upon the transfer of control of the promised goods. In substantially all of the Company’s contracts with customers, control is transferred to the customer upon delivery. The Company recognizes revenue in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Shipping Costs - The Company incurs shipping costs to deliver products to customers using an in-house fleet or common carrier. Typically shipping costs are prepaid and included in the product price; however, in some instances, the Company bills shipping costs to customers. Shipping costs are also incurred to physically move raw materials, tooling and products between manufacturing and distribution facilities. Shipping costs to deliver products to customers for the fiscal years ended March 31, 2024, 2023, and 2022 were $284.6 million, $274.5 million, and $242.0 million, respectively, and are included in Cost of goods sold. Stock-Based Compensation - See “Note 14. Stock-Based Compensation” for information about the stock-based compensation award programs and related accounting policies. Advertising - The Company expenses advertising costs as incurred. Advertising costs are recorded in Selling, general and administrative expenses in the Consolidated Statements of Operations. The total advertising costs were $10.2 million, $8.5 million, and $6.0 million for the fiscal years ended March 31, 2024, 2023, and 2022, respectively . Self-Insurance - The Company is self-insured for short-term disability and medical coverage it provides for substantially all eligible employees. The Company is self-insured for medical claims up to the individual and aggregate stop-loss coverage limits. The Company accrues for claims incurred but not reported based on an estimate of future claims related to events that occurred prior to the fiscal year end if it has not met the aggregate stop-loss coverage limit. Amounts expensed totaled $53.3 million, $52.1 million, and $45.6 million for the fiscal years ended March 31, 2024, 2023, and 2022, respectively, of which employees contributed $13.0 million, $12.4 million, and $10.7 million, respectively . ADS is also self-insured for various other general insurance programs to the extent of the applicable deductible limits on the Company’s insurance coverage. These programs include primarily automobile, general liability, cybersecurity and employment practices coverage with a deductible of $0.5 million per occurrence for general liability and $0.8 million per occurrence for automobile claim incurred. Amounts expensed during the period, including an estimate for claims incurred but not reported at year end, were $3.1 million, $3.1 million, and $3.2 million, for the years ended March 31, 2024, 2023, and 2022, respectively. ADS is also self-insured for workers’ compensation insurance with stop-loss coverage for claims that exceed $0.4 million per incident up to the respective state statutory limits. Amounts expensed, including an estimate for claims incurred but not reported, were $4.9 million, $4.9 million, and $4.1 million for the fiscal years ended March 31, 2024, 2023, and 2022, respectively. Income Taxes - Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized and represent the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. They are measured using the enacted tax rates expected to apply to taxable income in the years in which the related temporary differences are expected to be recovered or settled. Valuation allowances are established against deferred tax assets when it is more likely than not that the realization of those deferred tax assets will not occur. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The deferred income tax provision represents the change during the reporting period in the deferred tax assets and deferred tax liabilities. Penalties and interest recorded on income taxes payable are recorded as part of Income tax expense. The Company determines whether an uncertain tax position is more likely than not to be sustained upon examination, including resolution of any related appeals or litigation process, based upon the technical merits of the position. For tax positions meeting the more likely than not threshold, the tax amount recognized in the financial statements is the largest amount of tax benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant taxing authority. Fair Values - The fair value framework requires the categorization of assets and liabilities into three levels based upon assumptions (inputs) used to price the assets or liabilities. Level 1 provides the most reliable measure of fair value, whereas Level 3 generally requires significant management judgment. ADS’s policy for determining when transfers between levels have occurred is to use the actual date of the event or change in circumstances that caused the transfer. Concentrations of Risk - The Company has a large, active customer base of approximately 16,000 customers with two customers, Ferguson Enterprises and Core and Main, each representing more than 10% of annual net sales. Such customers accounted for 25.8%, 25.5%, and 24.2% of fiscal 2024, 2023 and 2022 net sales, respectively. The Company’s customer base is diversified across the range of end markets that it serves. Financial instruments that potentially subject the Company to a concentration of credit risk consist principally of Receivables. The Company provides its products to customers based on an evaluation of the customers’ financial condition, generally without requiring collateral. Exposure to losses on Receivables is principally dependent on each customer’s financial condition. The Company performs ongoing credit evaluations of its customers. The Company monitors the exposure for credit losses and maintains allowances for anticipated losses. Concentrations of credit risk with respect to Receivables are limited due to the large number of customers comprising the Company’s customer base and their dispersion across many different geographies. One customer, Ferguson Enterprises, accounted for approximately 17.5% and 20.0% of Receivables at March 31, 2024 and 2023, respectively. Derivatives - The Company recognizes derivative instruments as either assets or liabilities and measures those instruments at fair value. These instruments do not qualify for hedge accounting treatment. ADS uses commodity options in the form of collars and swaps, and foreign currency forward contracts to manage various exposures to commodity price and exchange rate fluctuations. Changes in fair value of the derivative instruments are recognized in Interest income and other, net in the Consolidated Statements of Operations. The Company’s policy is to present all derivative balances on a gross basis. Interest income and other, net- Included in Other income on the Company’s Statement of Operations is interest income on invested cash and derivative gains and losses for commodity and foreign currency instruments described below for the fiscal years ended March 31, 2024, 2023, and 2022 were: (Amounts in thousands) 2024 2023 2022 Interest income $ (22,047) $ (9,782) $ (52) Fair market value adjustments to derivatives (972) 3,639 (1,392) Net realized (gains) losses on derivatives 58 (3,963) (3,012) Foreign currency losses (gains) 436 2,275 324 Other (959) (141) (1,011) Interest income and other, net $ (23,484) $ (7,972) $ (5,143) Recent Accounting Pronouncements Reference Rate Reform - In March 2020, the Financial Accounting Standards Board (“FASB”) issued an accounting standards update (“ASU”) that provides optional expedients and exceptions related to financial reporting impacts related to the expected market transition from LIBOR to another reference rates. The amendments are effective on March 12, 2020 and an entity may elect to adopt prospectively through December 31, 2024. The Company is currently evaluating the impact of this standard on the Consolidated Financial Statements. Improvements to Reportable Segment Disclosures - In November 2023, the FASB issued an ASU to amend ASC 280, Segment Reporting to enhance segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. In addition, the amendments enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, provide new segment disclosure requirements for entities with a single reportable segment, and contain other disclosure requirements. The amendments are effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. The amendments must be applied retrospectively to all periods presented in the financial statements. The Company is currently evaluating the impact of this standard on the Consolidated Financial Statements. Improvements to Income Tax Disclosures - In December 2023, the FASB issued an ASU to amend ASC 740, Income Taxes to enhance the transparency and usefulness of income tax disclosures, primarily related to the rate reconciliation and income taxes paid information. The amendments may be applied prospectively or retrospectively and are effective for fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact of this standard on the Consolidated Financial Statements. |