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Nature of Operations and Summary of Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2012
Nature of Operations and Summary of Significant Accounting Policies |
Basis of Presentation | Basis of Presentation The Company's consolidated financial statements include the accounts of SkyWest, Inc. and its subsidiaries, including SkyWest Airlines and ExpressJet, with all inter-company transactions and balances having been eliminated. In preparing the accompanying consolidated financial statements, the Company has reviewed, as determined necessary by the Company's management, events that have occurred after December 31, 2012, up until the filing of the Company's annual report with the U.S. Securities and Exchange Commission.
Use of Estimates | Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America 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 financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Cash and Cash Equivalents | Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. The Company classified $19.6 million and $19.4 million of cash as restricted cash as required by the Company's workers' compensation policy and classified it accordingly in the consolidated balance sheets as of December 31, 2012 and 2011, respectively.
Marketable Securities | Marketable Securities The Company's investments in marketable debt and equity securities are deemed by management to be available for sale and are reported at fair market value with the net unrealized appreciation (depreciation) reported as a component of accumulated other comprehensive income in stockholders' equity. At the time of sale, any realized appreciation or depreciation, calculated by the specific identification method, is recognized in other income and expense. The Company's position in marketable securities as of December 31, 2012 and 2011 was as follows (in thousands):
|  | 2012 |  | 2011 |
--- | --- | --- | --- | --- | ---
Investment Types |  | Cost |  | Market Value |  | Cost |  | Market Value |
Commercial paper |  | $ | 3,510 |  | $ | 3,514 |  | $ | 4,555 |  | $ | 4,557 |
Bond and bond funds |  |  | 555,603 |  |  | 556,133 |  |  | 496,170 |  |  | 496,310 |
Asset backed securities |  |  | 296 |  |  | 314 |  |  | 456 |  |  | 478 |
|  |  | 559,409 |  |  | 559,961 |  |  | 501,181 |  |  | 501,345 |
Unrealized appreciation |  |  | 552 |  |  | — |  |  | 164 |  |  | — |
Total |  | $ | 559,961 |  | $ | 559,961 |  | $ | 501,345 |  | $ | 501,345 |
Marketable securities had the following maturities as of December 31, 2012 (in thousands):
Maturities |  | Amount |
--- | --- | --- | ---
Year 2013 |  | $ | 327,942 |
Years 2014 through 2017 |  |  | 160,116 |
Years 2018 through 2022 |  |  | 4,060 |
Thereafter |  |  | 67,843 |
As of December 31, 2012, the Company had classified $556.1 million of marketable securities as short-term since it has the intent to maintain a liquid portfolio and the ability to redeem the securities within one year. The Company has classified approximately $3.8 million of investments as non-current and has identified them as "Other assets" in the Company's consolidated balance sheet as of December 31, 2012 (see Note 7).
Inventories | Inventories Inventories include expendable parts, fuel and supplies and are valued at cost (FIFO basis) less an allowance for obsolescence based on historical results and management's expectations of future operations. Expendable inventory parts are charged to expense as used. An obsolescence allowance for flight equipment expendable parts is accrued based on estimated lives of the corresponding fleet types and salvage values. The inventory allowance as of December 31, 2012 and 2011 was $9.2 million and $8.2 million, respectively. These allowances are based on management estimates, which are subject to change.
Property and Equipment | Property and Equipment Property and equipment are stated at cost and depreciated over their useful lives to their estimated residual values using the straight-line method as follows:
Assets |  | Depreciable Life |  | Residual Value |
--- | --- | --- | --- | --- | ---
Aircraft and rotable spares |  | 10 - 18 years |  |  | 0 - 30 | %
Ground equipment |  | 5 - 10 years |  |  | 0 | %
Office equipment |  | 5 - 7 years |  |  | 0 | %
Leasehold improvements |  | 15 years or life of the lease |  |  | 0 | %
Buildings |  | 20 - 39.5 years |  |  | 0 | %
Impairment of Long-Lived Assets | Impairment of Long Lived Assets As of December 31, 2012, the Company had approximately $2.7 billion of property and equipment and related assets. Additionally, as of December 31, 2012, the Company had approximately $17.2 million in intangible assets. In accounting for these long-lived and intangible assets, the Company makes estimates about the expected useful lives of the assets, the expected residual values of certain of these assets, and the potential for impairment based on the fair value of the assets and the cash flows they generate. On September 7, 2005, the Company completed the acquisition of all of the issued and outstanding capital stock of Atlantic Southeast and recorded an intangible asset of approximately $33.7 million relating to the acquisition. The intangible asset is being amortized over fifteen years under the straight-line method. As of December 31, 2012 and 2011, the Company had $16.5 million and $14.3 million in accumulated amortization expense, respectively. Factors indicating potential impairment include, but are not limited to, significant decreases in the market value of the long-lived assets, a significant change in the condition of the long-lived assets and operating cash flow losses associated with the use of the long-lived assets. On a periodic basis, the Company evaluates whether impairment indicators are present. When considering whether or not impairment of long-lived assets exists, we group similar assets together at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and compare the undiscounted cash flows for each asset group to the net carrying amount of the assets supporting the asset group. Asset groupings are done at the fleet or contract level. No impairments of long-lived assets were recognized during 2012, 2011, or 2010.
Capitalized Interest | Capitalized Interest Interest is capitalized on aircraft purchase deposits as a portion of the cost of the asset and is depreciated over the estimated useful life of the asset. During the years ended December 31, 2012, 2011 and 2010, the Company capitalized interest costs of approximately $0, $0, and $5,000, respectively.
Maintenance | Maintenance The Company operates under an FAA-approved continuous inspection and maintenance program. The Company uses the direct expense method of accounting for its regional jet engine overhauls wherein the expense is recorded when the overhaul event occurs. The Company has an engine services agreement with a third party vendor to provide long-term engine services covering the scheduled and unscheduled repairs for certain of its Bombardier CRJ700 Regional Jets ("CRJ700s") and Embraer S.A. ("Embraer") ERJ145 regional jet ("ERJ 145") aircraft. Under the terms of the agreement, the Company pays a set dollar amount per engine hour flown on a monthly basis and the third party vendor will assume the responsibility to repair the engines at no additional cost to the Company, subject to certain specified exclusions. Maintenance costs under these contracts are recognized when the engine hour is flown pursuant to the terms of the contract. The Company uses the "deferral method" of accounting for its Embraer Brasilia EMB-120 turboprop aircraft ("Brasilia turboprop") engine overhauls wherein the overhaul costs are capitalized and depreciated to the next estimated overhaul event. The costs of maintenance for airframe and avionics components, landing gear and normal recurring maintenance are expensed as incurred. For leased aircraft, the Company is subject to lease return provisions that require a minimum portion of the "life" of an overhaul be remaining on the engine at the lease return date. For Brasilia turboprop engine overhauls related to leased aircraft to be returned, the Company adjusts the estimated useful lives of the final engine overhauls based on the shorter of the remaining useful life or the respective lease return dates.
Passenger and Ground Handling Revenues | Passenger and Ground Handling Revenues The Company recognizes passenger and ground handling revenues when the service is provided. Under the Company's contract and pro-rate flying agreements with Delta, United, US Airways, American and Alaska, revenue is considered earned when the flight is completed. Revenue is recognized under the Company's pro-rate flying agreements based upon the portion of the pro-rate passenger fare the Company anticipates that it will receive. Other ancillary revenues commonly associated with airlines such as baggage fee revenue, ticket change fee revenue and the marketing component of the sale of mileage credits are retained by the Company's major airline partners on flights that the Company operates under its code-share agreements.
Other Revenue Items | Other Revenue Items The Company's passenger and ground handling revenues could be impacted by a number of factors, including changes to the Company's code-share agreements with Delta, United, Alaska, American or US Airways, contract modifications resulting from contract re-negotiations, the Company's ability to earn incentive payments contemplated under the Company's code-share agreements and settlement of reimbursement disputes with the Company's major partners. Under the Company's code-share agreements with Delta, United, Alaska, US Airways and American, the compensation structure generally consists of a combination of agreed-upon rates for operating flights and direct reimbursement for other certain costs associated with operating the aircraft. A portion of the Company's contract flying compensation is designed to reimburse the Company for certain aircraft ownership costs. The Company has concluded that a component of its revenue under these agreements is rental income, inasmuch as the agreements identify the "right of use" of a specific type and number of aircraft over a stated period of time. The amounts deemed to be rental income under the agreements for the years ended December 31, 2012, 2011 and 2010 were $506.7 million, $521.3 million and $492.7 million, respectively. These amounts were recorded as passenger revenue on the Company's consolidated statements of operations. The Company has not separately stated aircraft rental income and aircraft rental expense in the consolidated statement of comprehensive income (loss)since the use of the aircraft is not a separate activity of the total service provided and there is not a separate profitability measurement for the deemed rental activity of the aircraft.
Deferred Aircraft Credits | Deferred Aircraft Credits The Company accounts for incentives provided by aircraft manufacturers as deferred credits. The deferred credits related to leased aircraft are amortized on a straight-line basis as a reduction to rent expense over the lease term. Credits related to owned aircraft reduce the purchase price of the aircraft, which has the effect of amortizing the credits on a straight-line basis as a reduction in depreciation expense over the life of the related aircraft. The incentives are credits that may be used to purchase spare parts and pay for training and other expenses.
Income Taxes | Income Taxes The Company recognizes a liability or asset for the deferred tax consequences of all temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements that will result in taxable or deductible amounts in future years when the reported amounts of the assets and liabilities are recovered or settled.
Net Income (Loss) Per Common Share | Net Income (Loss) Per Common Share Basic net income (loss) per common share ("Basic EPS") excludes dilution and is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share ("Diluted EPS") reflects the potential dilution that could occur if stock options or other contracts to issue common stock were exercised or converted into common stock. The computation of Diluted EPS does not assume exercise or conversion of securities that would have an anti-dilutive effect on net income (loss) per common share. During the years ended December 31, 2012, 2011 and 2010, 3,889,000, 4,323,000 and 4,183,000 shares reserved for issuance upon the exercise of outstanding options were excluded from the computation of Diluted EPS respectively, as their inclusion would be anti-dilutive. The calculation of the weighted average number of common shares outstanding for Basic EPS and Diluted EPS are as follows for the years ended December 31, 2012, 2011and 2010 (in thousands):
|  | Year Ended December 31, |
--- | --- | --- | ---
|  | 2012 |  | 2011 |  | 2010 |
Numerator: |  |  |  |  |  |  |  |  |  |
Net Income (Loss) |  | $ | 51,157 |  | $ | (27,335 | ) | $ | 96,350 |
Denominator: |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per-share weighted average shares |  |  | 51,090 |  |  | 52,201 |  |  | 55,610 |
Dilution due to stock options and restricted stock |  |  | 656 |  |  | — |  |  | 916 |
Denominator for diluted earnings per-share weighted average shares |  |  | 51,746 |  |  | 52,201 |  |  | 56,526 |
Basic earnings (loss) per-share |  | $ | 1.00 |  | $ | (0.52 | ) | $ | 1.73 |
Diluted earnings (loss) per-share |  | $ | 0.99 |  | $ | (0.52 | ) | $ | 1.70 |
Comprehensive Income (Loss) | Comprehensive Income (Loss) Comprehensive income (loss) includes charges and credits to stockholders' equity that are not the result of transactions with the Company's shareholders. Also, comprehensive income (loss) consisted of net income (loss) plus changes in unrealized appreciation (depreciation) on marketable securities and unrealized gain (loss) on foreign currency translation adjustment related to the Company's equity investment in Trip Linhas Aereas, a regional airline operating in Brazil ("Trip") and Mekong Aviation Joint Stock Company, an airline operating in Vietnam ("Air Mekong") (see note 8), net of tax, for the periods indicated (in thousands):
|  | Year Ended December 31, |
--- | --- | --- | ---
|  | 2012 |  | 2011 |  | 2010 |
Net Income (Loss) |  |  | 51,157 |  | $ | (27,335 | ) | $ | 96,350 |
Proportionate share of other companies foreign currency translation adjustment, net of tax |  |  | (251 | ) |  | (295 | ) |  | 637 |
Unrealized appreciation (depreciation) on marketable securities, net of tax |  |  | 316 |  |  | 534 |  |  | (745 | )
Comprehensive income (loss) |  | $ | 51,222 |  | $ | (27,096 | ) | $ | 96,242 |
Fair Value of Financial Instruments | Fair Value of Financial Instruments The carrying amounts reported in the consolidated balance sheets for receivables and accounts payable approximate fair values because of the immediate or short-term maturity of these financial instruments. Marketable securities are reported at fair value based on market quoted prices in the consolidated balance sheets. However, due to recent events in credit markets, the auction events for some of these instruments held by the Company failed during the year ended December 31, 2012. Therefore, quoted prices in active markets are no longer available and the Company has estimated the fair values of these securities utilizing a discounted cash flow analysis as of December 31, 2012. These analyses consider, among other items, the collateralization underlying the security investments, the creditworthiness of the counterparty, the timing of expected future cash flows, and the expectation of the next time the security is expected to have a successful auction. The fair value of the Company's long-term debt is estimated based on current rates offered to the Company for similar debt and approximates $1,744.2 million as of December 31, 2012, as compared to the carrying amount of $1,642.0 million as of December 31, 2012. The Company's fair value of long-term debt as of December 31, 2011 was $1,952.5 million as compared to the carrying amount of $1,815.4 million as of December 31, 2011.
Segment Reporting | Segment Reporting Generally accepted accounting principles require disclosures related to components of a company for which separate financial information is available to, and regularly evaluated by, the Company's chief operating decision maker when deciding how to allocate resources and in assessing performance. The Company's two operating segments consist of the operations conducted by its two subsidiaries, SkyWest Airlines and ExpressJet. Information pertaining to the Company's reportable segments is presented in Note 2, Segment Reporting.

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