Revenue Revenue

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

Revenue Recognition

Revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

We disaggregate revenue into three categories as presented on our income statement:

Lease Revenue

Lease revenue, which includes operating lease revenue and finance lease revenue, is our primary source of revenue. In accordance with ASU 2016-02, Leases (Topic 842) ("Topic 842"), we utilize the practical expedient that allows lessors to not separate non-lease components from the associated lease components for our operating leases.

Operating Lease Revenue

We lease railcars and other operating assets under full-service and net operating leases. We price full-service leases as an integrated service that includes amounts related to maintenance, insurance, and ad valorem taxes. We do not offer stand-alone maintenance service contracts. Operating leases revenue is within the scope of Topic 842, and we do not separate non-lease components from the associated lease component for qualifying leases. Operating lease revenue is recognized on a straight-line basis over the term of the underlying lease. As a result, lease revenue may not be recognized in the same period as maintenance and other costs, which we expense as incurred. Variable rents are recognized when applicable contingencies are resolved. Revenue is not recognized if collectability is not reasonably assured. See "Note 5. Leases".

Finance Lease Revenue

In certain cases, we lease railcars and other operating assets that, at lease inception, are classified as finance leases. In accordance with Topic 842, we recognize finance lease revenue using the interest method, which produces a constant yield over the lease term. Initial unearned income is the amount by which the original lease payment receivable and the estimated residual value of the leased asset exceeds the original cost or carrying value of the leased asset. See "Note 5. Leases".

Marine Operating Revenue

We generate marine operating revenue through shipping services completed by our marine vessels. In accordance with ASU 2014-09, Revenue from Contracts and Customers (Topic 606) ("Topic 606"), marine operating revenue is recognized over time as the performance obligation is satisfied, beginning when cargo is loaded through its delivery and discharge. Revenue is recognized pro rata over the projected duration of each voyage, which is derived from our historical voyage data.

Other Revenue

Other revenue is comprised of customer liability repair revenue, termination fees, utilization income, fee income, and other miscellaneous revenues. Select components of other revenue are within the scope of Topic 606. Revenue attributable to terms provided in our lease contracts are variable lease components that are recognized when earned, in accordance with Topic 842.