Significant Accounting Policies

Adopted Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-9, Compensation – Stock Compensation, Improvements to Employee Share-Based Payment Accounting (“ASU 2016-9”). ASU 2016-9 addresses multiple changes that are primarily focused on income taxes and the presentation of taxes related to stock compensation, but also provides an option for two methods to account for forfeitures. The Company applied the new guidance effective January 1, 2017, as required. The requirements resulting from the adoption of ASU 2016-9 will be accounted for on a prospective basis.


•	The Company made an accounting policy election to continue estimating the number of awards that are expected to be forfeited, consistent with the Company’s prior practice.


•	The Company excluded the excess tax benefits and deficiencies component from the treasury stock method in the diluted earnings per share calculation. The change had an immaterial impact on the Company’s reported diluted earnings per share.

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The Company recorded current excess tax benefits and tax deficiencies as income tax benefit (expense) in the consolidated statements of operations and comprehensive income. The change resulted in an excess tax expense of $0.1 million for the three months ended September 30, 2017 and excess tax benefit of $0.9 million recorded in the provision for income taxes for the nine months ended September 30, 2017.


•	The Company will present excess tax benefits as an operating activity on the condensed consolidated statement of cash flows rather than as a financing activity. Prior periods have not been adjusted.

There were no additional impacts on the Company’s financial statements, resulting from the adoption of ASU 2016-9 that required a retrospective or modified retrospective approach.

In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory (“ASU 2015-11”). ASU 2015-11 requires that inventory within the scope of the guidance be measured at the lower of cost and net realizable value. Inventory measured using last-in, first-out and retail inventory method are excluded from this new guidance. When evidence exists that the net realizable value of inventory is less than its cost, the Company will recognize the difference as a loss in earnings in the period the measurement occurs. This ASU replaces the concept of market with the single measurement of net realizable value and is intended to create efficiencies for preparers and more closely aligns U.S. GAAP with International Financial Reporting Standards (IFRS). The Company applied the new guidance prospectively effective January 1, 2017, as required. The adoption had an immaterial impact on the Company’s condensed consolidated balance sheets, the condensed consolidated statements of operations and comprehensive income, and the condensed consolidated statements of cash flows as of and for the three and nine months ended September 30, 2017.

Accounting Pronouncements Not Yet Adopted

In May 2014, the FASB and the International Accounting Standards Board jointly issued a comprehensive new revenue recognition standard, ASU No. 2014-9, Revenue from Contracts with Customers (“ASU 2014-9”), that will supersede nearly all existing revenue recognition guidance under U.S. GAAP. Under the new standard, revenue is recognized when a customer obtains control of promised goods or services and is recognized in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The FASB has issued several amendments to the standard including clarification on accounting for licenses of intellectual property, identifying performance obligations, and most recently, technical corrections on the interpretation of the new guidance. In July 2015, the FASB voted to defer the effective date of ASU 2014-9 for public entities to be effective for annual and interim periods beginning after December 15, 2017. Early adoption would be permitted no earlier than the original effective date beginning after December 15, 2016. ASU 2014-9 becomes effective for the Company in the first quarter of fiscal 2018 and the Company anticipates adopting the standard using the full retrospective method, which will result in the presentation of prior reporting periods in a manner consistent with 2018. The cumulative effect of the standard will be recognized at the earliest reporting period shown.

The Company has established a project team in order to analyze the effect of the standard on its contracts by reviewing its current accounting policies and practices to identify potential differences which would result from applying the requirements of the new standard to its revenue contracts. The Company has aggregated its contracts into homogeneous revenue streams and is continuing to assess all potential effects of the standard. The Company anticipates a change to the recognition pattern of its prepaid revenue from expiration. The Company currently recognizes unused prepaid revenue at the date the right to access the prepaid service has expired. Under the new standard, the Company will estimate the expected revenue that will expire unused and recognize this revenue over the prepaid term. The Company is currently evaluating the impact on revenue from estimating prepaid revenue upon expiration and changing the term over which this revenue is recognized. The Company has not yet completed its review of the effect of this guidance on all revenue streams and, as a result, other changes from current U.S. GAAP may be identified.

In February 2016, the FASB issued ASU No. 2016-2, Leases (“ASU 2016-2”). ASU 2016-2 requires lessees to put most leases on their balance sheets but recognize expenses on their income statements in a manner similar to current accounting. This ASU is effective for public business entities in fiscal years beginning after December 15, 2018, including interim periods within those years. Early adoption is permitted and reporting organizations are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is currently evaluating the effect ASU 2016-2 may have on its condensed consolidated financial statements and related disclosures, but a lease liability and related right-of-use asset will be recognized for operating lease arrangements where the Company is the lessee.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”). ASU 2016-18 will reduce diversity in the classification and presentation of changes in restricted cash in the statement of cash flows. This ASU is effective for public business entities in fiscal years beginning after December 15, 2017, including interim periods within those years. Early adoption is permitted, including adoption in an interim period, and reporting organizations are required to use a retrospective transition method to each period presented. The Company is currently evaluating the effect ASU 2016-18 may have on its condensed consolidated statements of cash flows and related disclosures, but recognizing transfers between restricted and unrestricted cash accounts will not be reported as a cash flow.

Warranty Expense

The Company provides the first end-user purchaser of its subscriber equipment a warranty for one to five years from the date of purchase by such first end-user, depending on the product. The Company maintains a warranty reserve based on historical experience of warranty costs and expected occurrences of warranty claims on equipment. Costs associated with warranties, including equipment replacement, repairs, freight and program administration, are recorded as cost of subscriber equipment in the accompanying condensed consolidated statements of operations and comprehensive income.

Fair Value Measurements

The Company evaluates assets and liabilities subject to fair value measurements on a recurring and non-recurring basis to determine the appropriate level to classify them for each reporting period. This determination requires significant judgments to be made by management of the Company. The instruments identified as subject to fair value measurements on a recurring basis are cash and cash equivalents, marketable securities, prepaid expenses and other current assets, accounts receivable, accounts payable and accrued expenses and other current liabilities. Fair value is the price that would be received from the sale of an asset or paid to transfer a liability assuming an orderly transaction in the most advantageous market at the measurement date. U.S. GAAP establishes a hierarchical disclosure framework which prioritizes and ranks the level of observability of inputs used in measuring fair value. The fair value hierarchy consists of the following tiers:


•	Level 1, defined as observable inputs such as quoted prices in active markets for identical assets or liabilities;


•	Level 2, defined as observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and


•	Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

The carrying values of short-term financial instruments (primarily cash and cash equivalents, prepaid expenses and other current assets, accounts receivable, accounts payable, and accrued expenses and other current liabilities) approximate their fair values because of their short-term nature. The fair value of the Company’s investments in money market funds approximates its carrying value; such instruments are classified as Level 1 and are included in cash and cash equivalents in the accompanying condensed consolidated balance sheets. The fair value of the Company’s investments in commercial paper and short-term U.S. agency securities with original maturities of less than ninety days approximates their carrying value; such instruments are classified as Level 2 and are included in cash and cash equivalents in the accompanying condensed consolidated balance sheets.

The fair value of the Company’s investments in fixed-income debt securities and commercial paper with original maturities of greater than ninety days are obtained using similar investments traded on active securities exchanges and are classified as Level 2 and are included in marketable securities in the accompanying condensed consolidated balance sheets. For fixed income securities that do not have quoted prices in active markets, the Company uses third-party vendors to price its debt securities resulting in classification as Level 2.

Depreciation and Amortization

The Company calculates depreciation expense using the straight line method and evaluates the appropriateness of the useful life used on a quarterly basis or as events occur that require additional assessment. Throughout 2017 and 2016, the Company updated its estimate of the first-generation satellites’ remaining useful lives based on the continued refinement of the launch schedule, health of the first-generation constellation, and deployment plan for the Company’s next-generation satellite constellation (“Iridium NEXT”). As a result, the estimated useful lives of the satellites within the first-generation constellation were extended and are consistent with the expected deployment of Iridium NEXT. The Company will continue to evaluate the useful lives of its first-generation satellites on an ongoing basis through the full deployment of Iridium NEXT, which is expected to occur in 2018. The changes in estimate will also have an effect on future periods through the deployment of Iridium NEXT. The $11.1 million and $19.1 million increases in depreciation and amortization expense for the three and nine months ended September 30, 2017, respectively, compared to the same periods of the prior year are primarily attributable to the addition of new assets, including Iridium NEXT satellites placed into service during the nine-month period ended September 30, 2017 and assets related to the Russian gateway completed at the end of 2016, partially offset by the continued refinement in the estimated useful lives of the first-generation satellites.