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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

The accompanying unaudited Condensed Consolidated Financial Statements of ADTRAN Holdings, Inc. and its subsidiaries have been prepared pursuant to the rules and regulations of the SEC applicable to interim financial information presented in Quarterly Reports on Form 10-Q. Accordingly, certain information and notes required by generally accepted accounting principles in the United States of America (“U.S. GAAP”) for complete financial statements are not included herein. The December 31, 2022 Condensed Consolidated Balance Sheet is derived from audited financial statements but does not include all disclosures required by U.S. GAAP.

In the opinion of management, all adjustments necessary to fairly state these interim statements have been recorded and are of a normal and recurring nature. The results of operations for an interim period are not necessarily indicative of the results for the full year. The interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in ADTRAN Holdings, Inc. Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on March 1, 2023.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expense during the reporting period. Significant estimates include allowance for credit losses on accounts receivable and contract assets, excess and obsolete inventory reserves, warranty reserves, customer rebates, determination and accrual of the deferred revenue related to performance obligations under contracts with customers, estimated costs to complete obligations associated with deferred and accrued revenues and network installations, estimated income tax provision and income tax contingencies, fair value of stock-based compensation, assessment of goodwill and other intangibles for impairment, estimated lives of intangible assets, estimates of intangible assets upon measurement, estimated pension liability and fair value of investments. Actual amounts could differ significantly from these estimates.

We assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to us and the unknown future impacts of supply chain constraints, inflationary pressures, the energy crisis, currency fluctuations and political tensions as of March 31, 2023 and through the date of this report. The accounting matters assessed included, but were not limited to, the allowance for credit losses, stock-based compensation, carrying value of goodwill, intangibles and other long-lived assets, financial assets, valuation allowances for tax assets, revenue recognition and costs of revenue. Future conditions related to supply chain constraints, inflationary pressures, the energy crisis, rising interest rates, instability in the financial services industry, currency fluctuations and political tensions could result in further impacts to the Company's consolidated financial statements in future reporting periods

Revision Of Previously Issued Financial Statements

Revision of Previously Issued Financial Statements

During the first quarter of 2023, the Company determined that it understated total assets and total liabilities as of the year ended December 31, 2022, due to netting of deferred tax assets and deferred tax liabilities as of December 31, 2022. While the net amount of deferred tax assets and liabilities remains unchanged, the Company reported the deferred tax assets and liabilities balances without properly applying jurisdictional net reporting disclosure rules. The jurisdictional netting error was a result of the consolidation of financial statements with ADVA following the business combination, which closed on July 15, 2022. The Company revised the December 31, 2022 Consolidated Balance Sheet presented in this report by increasing deferred tax assets and total assets by $61.6 million and increasing deferred tax liability, total liabilities, and total liabilities, redeemable non-controlling interest and equity by $61.6 million. Management has determined that this misstatement was not material to any of its previously issued financial statements.

The following table reflects the impact of the revision to the specific line items presented in the Company’s previously reported consolidated financial statements as of and for the year-ended December 31, 2022:


(In thousands)	As Reported		Adjustment		As Revised
Deferred tax assets	$	6,210	$	61,629	$	67,839
Total assets	$	1,881,865	$	61,629	$	1,943,494
Deferred tax liabilities	$	—	$	61,629	$	61,629
Total liabilities	$	578,252	$	61,629	$	639,881

Redeemable Non-Controlling Interest

As of March 31, 2023 and December 31, 2022, the ADVA stockholders’ equity ownership percentage in ADVA was approximately 34.6% and 34.7%, respectively.

As a result of the effectiveness of the DPLTA on January 16, 2023, the ADVA shares, representing the equity interest in ADVA held by holders other than the Company, can be tendered at any time and are, therefore, redeemable and must be classified outside stockholders’ equity. Therefore, the permanent equity noncontrolling interest balance was reclassified to redeemable non-controlling interest ("RNCI") on January 16, 2023 and was remeasured to fair value based on the trading market price of the ADVA shares.

Subsequently, the carrying value of the RNCI is adjusted to its maximum redemption value at each reporting date when the maximum redemption value is greater than the initial carrying amount of the redeemable noncontrolling interest. However, the RNCI will be remeasured using the current exchange rate at each reporting date as long as the RNCI is currently redeemable. For the period of time that the DPLTA is in effect, the RNCI will continue to be presented as redeemable non-controlling interest outside of stockholders’ equity in the condensed consolidated balance sheets.

See Note 16 for additional information on RNCI.

Recently Adopted Accounting Pronouncements

In October 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") 2021-08, Business Combinations (Topic 805) Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which would require an acquirer to recognize and measure acquired contract assets and contract liabilities in a manner consistent with how the acquiree recognized and measured them in its pre-acquisition financial statements in accordance with Topic 606, Revenue Recognition. The Company early adopted ASU 2021-08 on July 1, 2022 and the standard was applied retrospectively beginning with January 1, 2022.

Recent Accounting Pronouncements Not Yet Adopted

There are currently no accounting pronouncements not yet adopted that are expected to have a material effect on the Condensed Consolidated Financial Statements.