Spirit Airlines 2015 Annual Report Download - page 39

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months. Revenue generated from the FREE SPIRIT credit card affinity program are recognized in accordance with the criteria
as set forth in Accounting Standards Update ASU No. 2009-13. Please see “—Critical Accounting Policies and Estimates—
Frequent Flier Program.”
We recognize revenues net of certain taxes and airport passenger fees, which are collected by us on behalf of airports and
governmental agencies and remitted to the applicable governmental entity or airport on a periodic basis. These taxes and fees
include U.S. federal transportation taxes, federal security charges, airport passenger facility charges and foreign arrival and
departure taxes. These items are collected from customers at the time they purchase their tickets, but are not included in our
revenues. We record a liability upon collection from the customer and relieve the liability when payments are remitted to the
applicable governmental agency or airport.
Operating Expenses
Our operating expenses consist of the following line items.
Aircraft Fuel. Aircraft fuel expense is our single largest operating expense. It includes the cost of jet fuel, related federal
taxes, fueling into-plane fees and transportation fees. It also includes realized and unrealized gains and losses arising from any
activity on our fuel derivatives. Our fuel derivatives generally consist of United States Gulf Coast jet fuel swaps (jet fuel
swaps) and United States Gulf Coast jet fuel options (jet fuel options).
Salaries, Wages and Benefits. Salaries, wages and benefits expense includes the salaries, hourly wages, bonuses and
equity compensation paid to employees for their services, as well as the related expenses associated with employee benefit
plans and employer payroll taxes.
Aircraft Rent. Aircraft rent expense consists of monthly lease rents for aircraft and spare engines under the terms of the
related operating leases and is recognized on a straight-line basis. Aircraft rent expense also includes supplemental rent.
Supplemental rent is made up of maintenance reserves paid or expected to be paid to aircraft lessors in advance of the
performance of major maintenance activities that are not probable of being reimbursed and lease return condition obligations
which we begin to accrue when they are probable. Aircraft rent expense is net of the amortization of gains and losses on sale
and leaseback transactions on our flight equipment. As of December 31, 2015, 61 of our 79 aircraft and all of our 11 spare
engines are financed under operating leases.
Landing Fees and Other Rents. Landing fees and other rents include both fixed and variable facilities expenses, such as
the fees charged by airports for the use or lease of airport facilities, overfly fees paid to other countries and the monthly rent
paid for our headquarters facility.
Distribution. Distribution expense includes all of our direct costs including the cost of web support, our third-party call
center, travel agent commissions and related GDS fees and credit card transaction fees, associated with the sale of our tickets
and other products and services.
Maintenance, Materials and Repairs. Maintenance, materials and repairs expense includes parts, materials, repairs and
fees for repairs performed by third-party vendors directly required to maintain our fleet. It excludes direct labor cost related to
our own mechanics, which is included under salaries, wages and benefits. It also excludes the amortization of heavy
maintenance expenses, which we defer under the deferral method of accounting and amortize as a component of depreciation
and amortization expense.
Depreciation and Amortization. Depreciation and amortization expense includes the depreciation of fixed assets we own
and leasehold improvements. It also includes the amortization of heavy maintenance expenses we defer under the deferral
method of accounting for heavy maintenance events and recognize into expense on a straight-line or usage basis until the
earlier of the next estimated heavy maintenance event or the remaining lease term.
Loss on Disposal of Assets. Loss on disposal of assets includes the net losses on the disposal of our fixed assets.
Other Operating Expenses. Other operating expenses include airport operations expense and fees charged by third-party
vendors for ground handling services and food and liquor supply service expenses, passenger re-accommodation expense, the
cost of passenger liability and aircraft hull insurance, all other insurance policies except for employee related insurance, travel
and training expenses for crews and ground personnel, professional fees, personal property taxes and all other administrative
and operational overhead expenses. No individual item included in this category represented more than 5% of our total
operating expenses.
Special Charges. Special charges include termination costs and secondary offering costs.