This press release includes GAAP financial measures as well as Non-GAAP financial measures.  We believe these non-GAAP financial measures, which are not meant to be considered in isolation or as a substitute for comparable GAAP provide useful information to investors and others in understanding our "core operating performance", which excludes the effect of non-cash items and certain variable charges not expected to recur, not meaningful in comparison to our past operating performance or not reflective of ongoing financial results. Lastly, we believe that our core operating performance offers a supplemental measure for period-to-period comparisons and can be used to evaluate our historical and prospective financial performance, as well as our performance relative to competitors.

The non-GAAP definitions, and explanations to the adjustments to comparable GAAP measures are included below:

Non-GAAP Definitions

Non-GAAP revenue

We define Non-GAAP revenue as GAAP revenue, excluding the effects of purchase accounting adjustments.  We believe this measure helps investors understand the performance of our business including acquisitions, as non-GAAP revenue excludes the effects of certain acquired deferred revenue that was written down to fair value in purchase accounting.  Management believes that excluding fair value purchase accounting adjustments more closely correlates with the ordinary and ongoing course of the acquired company's operations and facilitates analysis of revenue growth and trends.

Non-GAAP gross margin

We define Non-GAAP gross margin as GAAP gross margin, excluding the effects of purchase accounting adjustments, acquisition/divestiture items, stock-based compensation, deferred compensation, and restructuring and other costs.  We believe our investors benefit by understanding our non-GAAP gross margin as a way of understanding how product mix, pricing decisions, and manufacturing costs influence our business.

Non-GAAP operating expenses

We define Non-GAAP operating expenses as GAAP operating expenses, excluding the effects of purchase accounting adjustments, acquisition/divestiture items, stock-based compensation, deferred compensation, and restructuring and other costs. 

We believe this measure is important to investors evaluating our non-GAAP spending in relation to revenue.

Non-GAAP operating income

We define Non-GAAP operating income as GAAP operating income, excluding the effects of purchase accounting adjustments, acquisition/divestiture items, stock-based compensation, deferred compensation, and restructuring, and other costs.  We believe our investors benefit by understanding our non-GAAP operating income trends, which are driven by revenue, gross margin, and spending. 

Non-GAAP non-operating expense, net       

We define Non-GAAP non-operating expenses, net as GAAP non-operating expenses, net, excluding acquisition/divestiture items and deferred compensation.  We believe this measure helps investors evaluate our non-operating expense trends. 

Non-GAAP income tax provision

We define Non-GAAP income tax provision as GAAP income tax provision, excluding charges and benefits such as net deferred tax impacts resulting from the non-U.S. intercompany transfer of intellectual property, tax law changes, and significant one-time reserve releases upon the statute of limitations expirations.  We believe this measure helps investors because it provides for consistent treatment of excluded items in our non-GAAP presentation and a difference in the GAAP and non-GAAP tax rates.

Non-GAAP net income

We define Non-GAAP net income as GAAP net income, excluding the effects of purchase accounting adjustments, acquisition/divestiture items, stock-based compensation, restructuring and other costs, and non-GAAP tax adjustments.  This measure provides a supplemental view of net income trends, which are driven by non-GAAP income before taxes and our non-GAAP tax rate.

Non-GAAP diluted net income per share

We defined Non-GAAP diluted net income per share as GAAP diluted net income per share, excluding the effects of purchase accounting adjustments, acquisition/divestiture items, stock-based compensation, restructuring and other costs, and non-GAAP tax adjustments.  We believe our investors benefit by understanding our non-GAAP operating performance as reflected in a per share calculation as a way of measuring non-GAAP operating performance by ownership in the company.

Adjusted EBITDA

We define Adjusted EBITDA as non-GAAP operating income plus depreciation expense and income from equity method investments, net.  Other companies may define Adjusted EBITDA differently.  Adjusted EBITDA is not intended to purport to be an alternative to net income or operating income as a measure of operating performance or cash flow from operating activities as a measure of liquidity.  Adjusted EBITDA is a performance measure that we believe offers a useful view of the overall operations of our business because it facilitates operating performance comparisons by removing potential differences caused by variations unrelated to operating performance, such as capital structures (interest expense), income taxes, depreciation and amortization expenses.

Explanations of Non-GAAP adjustments

(A)  Purchase accounting adjustments.  Purchase accounting adjustments consist of the following:

(i)  Acquired deferred revenue adjustment.  We adopted ASU 2021-08 in the fourth quarter of 2021 for all acquisitions occurring in 2021, which requires the application of ASC 606, Revenue from Contracts with Customers, to recognize and measure contract assets and contract liabilities on the acquisition date.  For acquisitions occurring prior to 2021, non-GAAP revenue excludes the adjustment to our revenue as a result of measuring the contract liability at fair value on the acquisition date. 
 

(ii)  Amortization of acquired capitalized commissions.  Purchase accounting generally requires entities to eliminate capitalized sales commissions balances as of the acquisition date.  Non-GAAP operating expenses exclude the adjustments that eliminate the capitalized sales commissions.  For acquisitions occurring prior to 2021, non-GAAP operating expenses exclude the adjustment of acquired capitalized commissions amortization.
 

(iii)  Amortization of purchased intangible assets.  Non-GAAP gross margin and operating expenses exclude the amortization of purchased intangible assets, which primarily represents technology and/or customer relationships already developed.

(D)  Acquisition / divestiture items.  Non-GAAP gross margin and operating expenses exclude acquisition costs consisting of external and incremental costs resulting directly from merger and acquisition and strategic investment activities such as legal, due diligence, integration, and other closing costs, including the acceleration of acquisition stock options and adjustments to the fair value of earn-out liabilities.  Non- GAAP non-operating expense, net, exclude unusual one-time acquisition/divestiture charges and/or divestiture gains/losses. The costs that have been excluded from the non-GAAP measures are costs specific to particular acquisitions. As a result, these are one-time costs that vary significantly in amount and timing and are not indicative of our core operating performance. 

(E)  Stock-based compensation / deferred compensation.  Non-GAAP gross margin and operating expenses exclude stock-based compensation and income or expense associated with movement in our non-qualified deferred compensation plan liabilities.  Changes in non-qualified deferred compensation plan assets, included in non-operating expense, net, offset the income or expense in the plan liabilities.

(F)  Restructuring and other costs.  Non- GAAP gross margin and operating expenses exclude restructuring and other exit costs comprised of termination benefits related to reductions in employee headcount, including executive severance agreements, the closure or exit of facilities, and cancellation of certain contracts.  In addition, other costs include COVID-19 expenses incurred as a direct impact from the COVID-19 virus pandemic, such as cancellation fees of trade shows due to public safety issues, additional charges for disinfecting facilities, and personal protective equipment. 

(G)  Non-GAAP items tax effected.  This amount adjusts the provision for income taxes to reflect the effect of the non-GAAP items (A) - (D) on non-GAAP net income.  This amount excludes the GAAP tax rate impact resulting from the non-U.S. intercompany transfer of intellectual property, which is separately disclosed in item (G). 

(H)  Difference in GAAP and Non-GAAP tax rate.  This amount represents the difference between the GAAP and non-GAAP tax rates applied to the non-GAAP operating income plus the non-GAAP non-operating expense, net. The GAAP tax rate used for this calculation excludes the net deferred tax impacts resulting from the non-U.S. intercompany transfer of intellectual property, which is separately disclosed in item (G).  The non-GAAP tax rate excludes charges and benefits such as net deferred tax impacts resulting from a non-U.S. intercompany transfer of intellectual property and significant one-time reserve releases upon statute of limitations expirations.

(I)  IP restructuring and tax law change impacts.  These amounts represent net deferred tax impacts resulting from a non-U.S. intercompany transfer of intellectual property, consistent with tax law changes, including tax rates changes, and our international business operations.