| Summary of Significant Accounting Policies | mary of Significant Accounting Policies Basis of Presentation and Accounting The accompanying consolidated financial statements are presented in accordance with generally accepted accounting principles in the United States of America ("GAAP"), and include the accounts of the Company. All significant intercompany transactions and balances have been eliminated. Unaudited Interim Financial Information The accompanying interim consolidated balance sheet as of September 30, 2017 , the interim consolidated statements of comprehensive income for the three and nine months ended September 30, 2017 and 2016 , the interim consolidated statement of members' equity and of cash flows for the nine months ended September 30, 2017 , and the consolidated financial data disclosed in these notes as of September 30, 2017 and for the three and nine months ended September 30, 2017 and 2016 are unaudited. The unaudited interim consolidated financial statements have been prepared on the same basis as the annual consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for the fair statement of these interim consolidated financial statements. The consolidated results of operations for the three and nine months ended September 30, 2017 are not necessarily indicative of the results to be expected for the year ending December 31, 2017 , or for any other future annual or interim period. These interim consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and related notes for the year ended December 31, 2016 included in the Prospectus. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to the allowance for doubtful accounts, collectability of notes receivable, useful lives of property and equipment, equity-based compensation, deferred revenue, fair value of leased property at inception of lease term, fair value of deliverables under multiple element arrangements, probability assessments of exercising renewal options on leases and other than temporary impairments on investments. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable. Cash The Company considers all highly liquid instruments with an original maturity of three months or less to be cash equivalents. The Company did not have any cash equivalents as of September 30, 2017 and December 31, 2016 . Investments The Company's investments in entities where it holds at least a 20% ownership interest and has the ability to exercise significant influence, but not control, over the investee are accounted for using the equity method of accounting. The Company's share of the investee's results of operations is included in equity in (losses) net earnings of investments and foreign currency translation adjustments, as applicable, are included in other comprehensive income with a corresponding adjustment to its investment. The Company discontinues applying the equity method of accounting when the investment is reduced to zero. If the investee subsequently reports net income or other comprehensive income, the Company resumes applying the equity method of accounting only after its share of unrecognized net income and other comprehensive income, respectively, equals the share of losses not recognized during the period the equity method of accounting was suspended. The Company gives precedence to other comprehensive income and losses when determining whether to resume applying the equity method of accounting. Investments in entities where the Company holds less than a 20% ownership interest are generally accounted for using the cost method of accounting. In addition, the Company reviews its relationships with other entities to identify whether they are variable interest entities and to assess whether the Company is the primary beneficiary of such entity. If the determination is made that the Company is the primary beneficiary, then the entity is consolidated. Fair Value Measurements Financial assets and liabilities are recorded at fair value. The accounting guidance for fair value provides a framework for measuring fair value, clarifies the definition of fair value and expands disclosures regarding fair value measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). The accounting guidance establishes a fair value hierarchy, which prioritizes the inputs used in measuring fair value into three broad levels as follows: Level 1 Quoted prices in active markets for identical assets or liabilities. Level 2 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. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Derivative Financial Instruments A derivative is a financial instrument whose value changes in response to an underlying variable, requires little or no initial net investment and is settled at a future date. Derivatives are initially recognized at fair value on the date on which the derivatives are entered into and subsequently re-measured at fair value. Embedded derivatives included in hybrid instruments are treated and disclosed as separate derivatives when their economic characteristics and risks are not closely related to those of the host contract, the terms of the embedded derivative are the same as those of a stand-alone derivative and the combined contract is not measured at fair value through earnings. The financial host contracts are accounted for and measured using the applicable GAAP of the relevant financial instrument category. The method of recognizing fair value gains and losses depends on whether the derivatives are designated as hedging instruments, and if so, the nature of the hedge relationship. All gains and losses from changes in the fair values of derivatives that do not qualify for hedge accounting are recognized immediately in earnings. As of September 30, 2017 and December 31, 2016 , the Company's identified embedded derivative does not qualify for hedge accounting (Note 5). During the nine months ended September 30, 2017 , the Company entered into an agreement for the purchase of electricity (Note 9). The accounting guidance for derivative instruments provides a scope exception for commodity contracts that meet the normal purchase and sales criteria specified in the standard. The normal purchases and normal sales exception requires, among other things, physical delivery in quantities expected to be used or sold over a reasonable period in the normal course of business. Contracts that are designated as normal purchases and normal sales are not recorded on the consolidated balance sheets at fair value. Concentration of Credit and Other Risks Although the Company operates primarily in Nevada, realization of its customer accounts receivable and its future operations and cash flows could be affected by adverse economic conditions, both regionally and elsewhere in the United States. During the three months ended September 30, 2017 and 2016 , the Company's largest customer and its affiliates comprised 12% and 13% , respectively, of the Company's revenue. During the nine months ended September 30, 2017 and 2016 , the Company's largest customer and its affiliates comprised 10% and 14% , respectively, of the Company's revenue. No single customer accounted for 10% or more of accounts receivable as of September 30, 2017 or December 31, 2016 . The Company generally carries cash on deposit with financial institutions in excess of federally insured limits. Through May 31, 2017, the Company was also exposed to a limited extent, to a risk of unfavorable price increases from its principal provider of power, Nevada Power Company dba NV Energy ("NV Energy"), whose rates are set by and services are regulated by the Public Utilities Commission of Nevada ("PUCN"). On June 1, 2017, the Company became an unbundled purchaser of energy in Nevada. Accounts Receivable Customer receivables are non-interest bearing and the Company generally does not request collateral from its customers, however, it usually obtains a lien or other security interest in certain customers' equipment placed in the Company's data center, and/or obtains a deposit. In the event collection is not reasonably assured at inception of a contract, recognition of related revenue is deferred generally until receipt of cash payment. The Company maintains an allowance for doubtful accounts for estimated losses up to the full amount of invoices based on the age of the invoices. If the financial condition of the Company's customers were to deteriorate or if they became insolvent, resulting in an impairment of their ability to make payments, greater allowances for doubtful accounts may be required. Management specifically analyzes accounts receivable and current economic news and trends, historical bad debt, customer concentrations, customer credit-worthiness and changes in customer payment terms when evaluating revenue recognition and the adequacy of the Company's reserves. Delinquent account balances are written-off after management has determined the likelihood of collection is not probable. The Company recorded bad debt expense (recovery) of $167,000 and $(223,000) for the three months ended September 30, 2017 and 2016 , respectively, and $172,000 and $37,000 for the nine months ended September 30, 2017 and 2016 , respectively. Notes Receivable Notes receivable are recorded at amortized cost using the interest method. The Company evaluates the collectability of both principal and interest based on an assessment of any significant changes in the amount and timing of the expected future cash flows. As of December 31, 2016 , the Company fully impaired the carrying value of its notes receivable (Note 5). Internal Use Software The Company capitalizes certain costs incurred in connection with developing or obtaining internal use software. Capitalized software costs placed into service are included in computer equipment, furniture and fixtures within property and equipment, net on the consolidated balance sheets and are amortized on a straight-line basis over a three -year period. Software costs that do not meet capitalization criteria are expensed immediately. The Company capitalized internal use software costs of $70,000 and $473,000 , respectively, during the three months ended September 30, 2017 and 2016 , and $1.2 million and $670,000 during the nine months ended September 30, 2017 and 2016 , respectively. Property and Equipment Property and equipment is stated at cost. Depreciation and amortization of property and equipment is computed using the straight-line method over the estimated useful lives of the respective assets. The cost and accumulated depreciation of property and equipment retired or otherwise disposed of are eliminated from the respective accounts and any resulting gain or loss is included in operations. Costs of repairs and maintenance are expensed as incurred. For assets held under capital leases, the estimated useful lives are limited to the shorter of the useful life of the asset or the term of the lease, including renewal option periods if exercise is intended (Note 7). Amortization of assets that are recorded under capital leases is included in depreciation expense. For assets used in data center operations, the related depreciation and amortization are included in cost of revenue. The Company's estimated useful lives of its property and equipment are as follows (in years): Assets Estimated Useful Lives Land improvements, buildings and building improvements 20-40 Substation equipment 30 Data center equipment 5-10 Vehicles 7 Core network equipment 5-7 Cloud computing equipment 5 Fiber facilities 20, 40 Deferred installation charges 3-5 Computer equipment, furniture and fixtures 3-5 In addition, the Company has capitalized interest costs during the construction phase of data centers. Once a data center or expansion project becomes operational, these costs are allocated to certain property and equipment categories and are depreciated over the estimated useful life of the underlying assets. Impairment of Long‑Lived Assets The Company's long‑lived assets, such as property and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of assets to be held and used is measured by comparison of the carrying amount of an asset group to estimated undiscounted future cash flows expected to be generated by the asset group. If the carrying amount of an asset group exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset group exceeds the fair value of the asset group. Portfolio Energy Credits The Company recognizes portfolio energy credits ("PECs") at their cost when purchased as an intangible asset, subject to impairment testing. PECs are not considered outputs by the Company. Amortization of PECs is recorded within cost of revenue on the consolidated statements of comprehensive income when PECs are utilized in operations. Deferred Debt Issuance Costs Costs incurred in obtaining certain debt financing are deferred and amortized over the terms of the related debt instruments using the interest method for term debt and the straight-line method for revolving debt. Deferred Offering Costs The Company capitalizes certain legal, accounting, and other third-party fees that are directly associated with in-process equity financings until such financings are consummated. After consummation of the equity financing, these costs are recorded in stockholders' equity as a reduction of additional paid-in capital generated as a result of the offering. As of September 30, 2017 , the Company recorded $4.1 million of deferred offering costs within other assets in the accompanying consolidated balance sheets in contemplation of the IPO. Upon the successful consummation of the IPO in October 2017, the deferred offering costs were recorded immediately in Switch, Inc.s' stockholders' equity as a reduction of additional paid-in capital generated as a result of the IPO. The Company did not record any deferred offering costs as of December 31, 2016 . Foreign Currency Translation SUPERNAP International, S.A. ("SUPERNAP International"), an equity method investment of the Company, has investments in foreign subsidiaries. Gains or losses from translation of foreign operations where the local currency is the functional currency are included in other comprehensive income. Revenue Recognition During the nine months ended September 30, 2017, the Company derived more than 95% of its revenue from recurring revenue streams, consisting primarily of (1) colocation, which includes the licensing of cabinet space and power; and (2) connectivity services, which includes cross-connects, broadband services, and external connectivity. The remainder of the Company's revenue is from non-recurring revenue streams, which primarily include installation and contract settlements. Recurring revenue is generally billed monthly and recognized ratably over the period to which the service relates. The Company's contracts with its customers generally have terms of three to five years. Non-recurring installation fees, although generally paid in a lump sum upon installation, are deferred and recognized ratably over the expected life of the installation, which was 73 months as of September 30, 2017 and December 31, 2016 . The expected life of the installation is determined based on (i) the weighted-average term of new contracts entered into during the period with customers, plus (ii) the average term of contract renewals entered into during the period with existing customers. Revenue from connectivity services is generally recognized on a gross basis in accordance with the accounting standard related to reporting revenue gross as a principal versus net as an agent, primarily because the Company acts as the principal in the transactions, takes title to services and bears credit risk. Revenue from contract settlements, which result when a customer wishes to terminate their contract early, is generally recognized when no remaining performance obligations exist, to the extent that the revenue has not previously been recognized. The Company guarantees certain service levels, such as uptime, as outlined in individual customer contracts. If these service levels are not achieved, the Company reduces revenue for any credits given to the customer as a result. There were no service level credits issued during the three and nine months ended September 30, 2017 and 2016 . Revenue is recognized only when the service has been provided and when there is persuasive evidence of an arrangement, the fee is fixed or determinable and collection of the receivable is reasonably assured. It is the Company's customary business practice to obtain a signed colocation facility agreement and service order prior to recognizing revenue in an arrangement. The Company assesses collectability based on a number of factors, including past transaction history with the customer and the credit-worthiness of the customer. The Company generally does not request collateral from its customers except it usually obtains a lien and/or other security interest in a customer's equipment placed in the Company's data centers or obtains a deposit. If the Company determines that collection of a fee is not reasonably assured, the fee is deferred and revenue is recognized at the time collection becomes reasonably assured, which is generally upon receipt of cash. Multiple Element Arrangements The Company enters into multiple element revenue arrangements in which a customer may purchase a combination of the right to use network capacity (e.g., conduit and fiber optic cables), maintenance services, and colocation services. Terms of performance, cancellation, termination, or refunds in these arrangements are similar to those for individual stand-alone deliverables. To the extent these revenue arrangements involve the use of property and equipment, they are evaluated under lease accounting guidance to determine whether the arrangement meets the definition of a lease. None of the multiple element arrangements entered into by the Company during any of the periods presented have met the definition of a lease. The services offered under these revenue arrangements qualify as separate units of accounting. Multiple deliverables within revenue arrangements are allocated to separate units of accounting if the deliverables meet both of the following criteria: • The delivered items have value to the customer on a stand-alone basis. The items have value on a stand-alone basis if they are sold separately by any vendor or the customer could resell the delivered items on a stand-alone basis; and • If the arrangement includes a general right of return relative to the delivered items, delivery or performance of the undelivered items is considered probable and substantially in the control of the Company. At the inception of a multiple element arrangement, the Company: (1) determines whether and when each unit of accounting has been delivered or performed; (2) determines the fair value of each unit of accounting using the selling price hierarchy of vendor-specific evidence of fair value ("VSOE") if available, third-party evidence ("TPE") if VSOE is not available, and management's best estimate of the selling price ("BESP") if neither VSOE nor TPE is available; and (3) allocates the total price among the various units of accounting using the relative selling price method. Once the total price has been allocated among the various units of accounting, revenue is recognized when the relevant revenue recognition criteria are met for each element, which is upon acceptance or use of the services by the customer. VSOE generally exists when the deliverable is sold separately; however, in certain instances VSOE cannot be established if the deliverable cannot be priced within a narrow range or has a limited sales history. TPE is determined based on competitor prices for similar deliverables when sold separately. The Company determines BESP for a product or service by considering multiple factors including, but not limited to, pricing practices, market conditions, competitive landscape, type of customer, geographies, internal costs, and gross margin objectives. Revenue is allocated to rights to use network capacity and related colocation services and maintenance services under these arrangements based on TPE. Revenue allocated to other colocation services provided under these arrangements is based on VSOE. Income Taxes Since limited liability companies are "pass-through" entities under the U.S. Internal Revenue Code, the members of the Company are taxed directly on their respective ownership interests in consolidated income, and, therefore, no provision or liability for federal income tax has been included in the accompanying consolidated financial statements. Based on management's evaluations, since there are no conditions or uncertainties that present any material risk of loss of the pass-through status of the Company or other identified uncertain tax positions to be taken or taken in previously filed federal or state income tax returns that remain subject to examination by relevant tax authorities (presently consisting of those for tax years 2014 through 2016), the related provisions of GAAP relative to uncertain tax positions have had no effect on the Company's consolidated financial statements. The Company's policy is to record estimated probable penalties and interest to be assessed to the Company, if any, related to income tax matters as selling, general and administrative expense. Advertising Costs Advertising costs are expensed when incurred and are included in selling, general and administrative expense in the accompanying consolidated statements of comprehensive income. Advertising expense was $351,000 and $597,000 for the three months ended September 30, 2017 and 2016 , respectively, and $1.3 million and $1.5 million for the nine months ended September 30, 2017 and 2016 , respectively. Equity-Based Compensation Equity-based compensation cost is measured at the grant date for all equity-based awards made to employees and members based on the fair value of the awards and is recognized as expense on a straight-line basis over the requisite service period, which is generally the vesting period. The Company grants equity awards to its employees and members and these equity awards generally have only a service condition. The Company's equity awards vest up to five years. The Company uses the Black-Scholes option-pricing model to determine the fair value of its equity awards. The determination of the fair value of equity awards is affected by assumptions regarding a number of complex and subjective variables including the fair value of the Company's member equity units, the expected price volatility of the member equity units over the term of the awards and actual and projected employee unit option exercise or purchase behaviors. The Company's member equity units' fair value per unit is estimated using a weighted average approach of a combination of the following three methods: (1) publicly traded data center company multiples; (2) data center precedent transaction multiples; and (3) the discounted cash flow method based on the Company's five-year forecast. The weighting of these three methods varied over time. The Company estimates the expected volatility by analyzing the volatility of companies in the same industry and selecting volatility within the range. The risk-free interest rate is based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected term of the equity awards. The expected dividend rate is determined at the grant date for each equity award. The expected term of the equity award is calculated by analyzing the historical exercise data and obtaining the weighted average of the holding period for the equity awards. Net Income per Unit Basic net income per unit is computed by dividing net income by the weighted-average number of units outstanding during the period. Diluted net income per unit is computed giving effect to all potential weighted average dilutive units including options, and incentive units. The dilutive effect of outstanding awards, if any, is reflected in diluted earnings per unit by application of the treasury stock method. Refer to Note 13 for further information on net income per unit. Recent Accounting Pronouncements ASU 2014-09 Revenue from Contracts with Customers In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The ASU replaces much of the current guidance regarding revenue recognition including most industry-specific guidance. The core principle of the ASU is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. An entity will be required to identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligation in the contract, and recognize revenue when (or as) the entity satisfies a performance obligation. In addition to the new revenue recognition requirements, entities will be required to disclose sufficient information to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. Entities may choose between two retrospective transition methods when applying the ASU. In July 2015, the FASB voted to defer the effective date by one year (ASU 2015-14) to December 15, 2018 for annual reporting periods beginning after that date, and interim periods within annual periods beginning after December 15, 2019, and permitted early adoption of the standard, but not before the original effective date of December 15, 2017. Companies may use either a full retrospective or a modified-retrospective approach to adopt the standard. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers - Principal versus Agent Considerations Reporting ("ASU 2016-08"). The core principle of the guidance in Revenue from Contracts with Customers in ASU 2014-09 is not changed by the amendments in ASU 2016-08. The amendments clarify the implementation guidance on principal versus agent considerations. Per ASU 2016-08, when another party is involved in providing goods or services to a customer, an entity is required to determine whether the nature of its promise is to provide the specified good or service itself (principal) or to arrange for that good or service to be provided by the other party (agent). When an entity that is a principal satisfies a performance obligation, the entity recognizes revenue in the gross amount of consideration to which it expects to be entitled in exchange for the specified good or service transferred to the customer. When an entity that is an agent satisfies a performance obligation, the entity recognizes revenue in the amount of any fee or commission to which it expects to be entitled. The effective date and transition requirements for ASU 2016-08 are the same as the effective date and transition requirements for ASU 2014-09. In April 2016 and May 2016, the FASB issued guidance which amends certain other aspects of ASU 2014-09. The amendments include the identification of performance obligations and the licensing implementation guidance (ASU 2016-10) and the collectability of revenue, presentation of sales tax and other similar taxes collected from customers, contracts containing noncash considerations, and contract modifications and completed contracts at transition (ASU 2016-12). In December 2016, the FASB amended ASU 2014-09 to make minor corrections and minor improvements to the guidance that are not expected to have a significant effect on current accounting practice or create a significant administrative cost. The effective date and transition provisions in these amendments are aligned with the requirements of ASU 2014-09. The Company is in the process of selecting a transition method and determining the effect of this guidance on its consolidated financial statements. ASU 2014-15 Presentation of Financial Statements - Going Concern In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements - Going Concern ("ASU 2014-15"), which provides guidance about management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures. The adoption of ASU 2014-15 during the year ended December 31, 2016 did not impact the Company's consolidated financial statements. ASU 2015-02 Consolidation (Topic 810): Amendments to the Consolidation Analysis In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis ("ASU 2015-02"). This standard modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The adoption of ASU 2015-02 in the first quarter of 2017 did not impact the Company's consolidated financial statements. ASU 2016-02 Leases (Topic 842) On February 25, 2016, the FASB issued ASU 2016-02, Leases ("ASU 2016-02"). The principle of ASU 2016-02 is that a lessee should recognize the assets and liabilities that arise from leases. Lessees will need to recognize a right-of-use asset and a lease liability for virtually all of their leases (other than leases that meet the definition of a short-term lease). The liability will be equal to the present value of lease payments. The asset will be based on the liability. For income statement purposes, ASU 2016-02 requires leases to be classified as either operating or finance. Operating leases will result in straight-line expense while finance leases will result in a front-loaded expense pattern. ASU 2016-02 is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted. The new standard must be adopted using a modified-retrospective transition, and provides for certain practical expedients. The Company is evaluating the potential effects of the adoption of this ASU on its consolidated financial statements. The Company has not decided if early adoption will be considered. ASU 2016-09 Stock Compensation - Improvements to Employee Share-Based Payment Accounting In March 2016, the FASB issued ASU 2016-09, Stock Compensation - Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"). ASU 2016-09 was issued to simplify accounting guidance by identifying, evaluating, and improving areas for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to users of financial statements. The areas affected by ASU 2016-09 include accounting for income taxes, classification of excess tax benefits on the statement of cash flows, minimum statutory tax withholding requirements, and classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax-withholding purposes. In addition, under this guidance, an entity can make an accounting policy election to either estimate the number of aw |
