These non-GAAP measures are not in accordance with, or an alternative to, measures prepared in accordance with GAAP and may be different from non-GAAP measures used by other companies. In addition, these non-GAAP measures are not based on any comprehensive set of accounting rules or principles. Non-GAAP measures have limitations in that they do not reflect all of the amounts associated with the company's results of operations as determined in accordance with GAAP. These measures should only be used to evaluate the company's results of operations in conjunction with the corresponding GAAP measures.
Reconciliation to the nearest GAAP measure of all non-GAAP measures included in this press release can be found in the tables included in this press release.
These non-GAAP measures are provided to enhance investors' overall understanding of the company's current financial performance and its prospects for the future. Specifically, the company believes the non-GAAP measures provide useful information to both management and investors by excluding certain expenses, gains and losses or net purchases of property and equipment, as the case may be, that may not be indicative of its core operating results and business outlook. In addition, because the company has historically reported certain non-GAAP results to investors, the company believes that the inclusion of non-GAAP measures provides consistency in the company's financial reporting.
For its internal budgeting process, and as discussed further below, the company's management uses financial measures that do not include stock-based compensation expense, employer payroll taxes on stock-based compensation, amortization or impairment of acquired intangible assets, impairment of goodwill, significant gains or losses from the disposal/acquisition of a business, restructuring-related charges and the income taxes associated with the foregoing. In addition to the corresponding GAAP measures, the company's management also uses the foregoing non-GAAP measures in reviewing the financial results of the company.The company excludes the following items from non-GAAP net income, non-GAAP earnings per diluted share, non-GAAP operating margin and non-GAAP effective tax rate: