Revenues from time chartering of vessels are accounted for as operating leases and are thus
recognized on a straight-line basis as the average revenue over the rental periods of such charter agreements, as service is performed. A time charter involves placing a vessel at the charterers disposal for a period of time during which the
charterer uses the vessel in return for the payment of a specified daily hire rate. Under time charters, operating costs such as for crews, maintenance and insurance are typically paid by the owner of the vessel.
Profit-sharing revenues are calculated at an agreed percentage of the excess of the charterers average daily income (calculated on a
quarterly or half-yearly basis) over an agreed amount and accounted for on an accrual basis based on provisional amounts and for those contracts that provisional accruals cannot be made due to the nature of the profit share elements, these are
accounted for on the actual cash settlement. Profit sharing for the years ended December 31, 2017, December 31, 2016 and December 31, 2015 amounted to $0.9 million, $7.6 million and $32.1 million, respectively.
Revenues are recorded net of address commissions. Address commissions represent a discount provided directly to the charterers based on a
fixed percentage of the agreed upon charter or freight rate. Since address commissions represent a discount (sales incentive) on services rendered by the Company and no identifiable benefit is received in exchange for the consideration provided to
the charterer, these commissions are presented as a reduction of revenue.
Pooling arrangements: For vessels operating in
pooling arrangements, the Company earns a portion of total revenues generated by the pool, net of expenses incurred by the pool. The amount allocated to each pool participant vessel, including the Companys vessels, is determined in accordance
with an agreed-upon formula, which is determined by the margins awarded to each vessel in the pool based on the vessels age, design and other performance characteristics. Revenue under pooling arrangements is accounted for on the accrual basis
and is recognized when an agreement with the pool exists, price is fixed, service is provided and the collectability is reasonably assured. Revenue for vessels operating in pooling arrangements amounted to $46.6 million, $50.8 million and
$43.4 million, for the years ended December 31, 2017, 2016 and 2015, respectively.
The allocation of such net revenue may be
subject to future adjustments by the pool however, such changes are not expected to be material.
Investments in Equity
Securities: Navios Acquisition evaluates its investment in Navios Midstream, Navios Europe I and Navios Europe II for OTTI on a quarterly basis. Consideration is given to (i) the length of time and the extent to which the fair value has
been less than the carrying value, (ii) the financial condition and near-term prospects of Navios Midstream, Navios Europe I and Navios Europe II, and (iii) the intent and ability of the Company to retain its investment in Navios
Midstream, Navios Europe I and Navios Europe II for a period of time sufficient to allow for any anticipated recovery in fair value.
Navios Acquisition considers whether the fair values of its equity method investments have declined below their carrying values whenever
adverse events or changes in circumstances indicate that the carrying value may not be recoverable. If we consider any such decline to be other-than-temporary (based on various factors, including historical financial results, economic and industry
events resulting in changes in the affiliates trading performance and the overall health of the affiliates industry), then we would write down the carrying amount of the investment to its estimated fair value.
As of December 31, 2017 the carrying amount of the investment in Navios Midstream was $113.7 million or $9.02 per unit, which
represented our total ownership interest in the Partnership of 59.0%. The estimated market value of this investment was determined with reference to the quoted price of the common units. As of June 30, 2017, the fair value of our
investment in Navios Midstream had been below its carrying value for a period over twelve months, due to the decline in the quoted price of the common units of Navios Midstream and was considered as OTTI. During the year ended December 31,
2017, the Company recognized a non-cash OTTI loss of $59.1 million relating to its investment in Navios Midstream and the amount was included in Equity/ (loss) in net earnings of
affiliated companies in the accompanying consolidated statements of operations.