XML 23 R12.htm IDEA: XBRL DOCUMENT v3.8.0.1
Revenue
 3 Months Ended
Mar. 31, 2018
Revenue from Contract with Customer [Abstract]  
Revenue REVENUE

The following table disaggregates our revenue by major source:
 
Three Months Ended March 31,
 
2018
 
2017
Terminalling and storage segment
 
 
 
Lubricant product sales
$
36,480

 
$
32,147

Throughput and storage
24,064

 
24,658

 
$
60,544

 
$
56,805

Natural gas services segment
 
 
 
Natural gas liquids product sales
$
159,163

 
$
126,657

Natural gas storage
15,356

 
14,665

 
$
174,519

 
$
141,322

Sulfur service segment
 
 
 
Sulfur product sales
$
11,837

 
$
13,080

Fertilizer product sales
23,063

 
26,447

Sulfur services
2,787

 
2,850

 
$
37,687

 
$
42,377

Marine transportation segment
 
 
 
Inland transportation
$
9,692

 
$
11,291

Offshore transportation
1,762

 
1,530

 
$
11,454

 
$
12,821



Revenue is measured based on a consideration specified in a contract with a customer and excludes amounts collected on behalf of third parties where the Partnership is acting as an agent. The Partnership recognizes revenue when the Partnership satisfies a performance obligation, which typically occurs when the Partnership transfers control over a product to a customer or as the Partnership delivers a service.

The following is a description of the principal activities - separated by reportable segments - from which the Partnership generates revenue.

Terminalling and Storage Segment

Revenue is recognized for storage contracts based on the contracted monthly tank fixed fee.  For throughput contracts, revenue is recognized based on the volume moved through the Partnership’s terminals at the contracted rate.  For the Partnership’s tolling agreement, revenue is recognized based on the contracted monthly reservation fee and throughput volumes moved through the facility.  When lubricants and drilling fluids are sold by truck or rail, revenue is recognized when title is transfered, which is either upon delivering product to the customer or when the product leaves the Partnership's facility, depending on the specific terms of the contract. Delivery of product is invoiced as the transaction occurs and is generally paid within a month.

Natural Gas Services Segment

Natural Gas Liquids ("NGL") distribution revenue is recognized when product is delivered by truck, rail, or pipeline to the Partnership's NGL customers. Revenue is recognized on title transfer of the product to the customer. Delivery of product is invoiced as the transaction occurs and are generally paid within a month. Natural gas storage revenue is recognized when the service is provided to the customer. The performance of the service is invoiced as the transaction occurs and is generally paid within a month.

Sulfur Services Segment

Revenue from sulfur product sales is recognized when the customer takes title to the product.  Delivery of product is invoiced as the transaction occurs and are generally paid within a month. Revenue from sulfur services is recognized as services are performed during each monthly period. The performance of the service is invoiced as the transaction occurs and is generally paid within a month.

Marine Transportation Segment

Revenue is recognized for time charters based on a per day rate. For contracted trips, revenue is recognized upon completion of the particular trip. The performance of the service is invoiced as the transaction occurs and is generally paid within a month.

The table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied at the end of the reporting period. The Partnership applies the practical expedient in ASC 606-10-50-14(a) and does not disclose information about remaining performance obligations that have original expected durations of one year or less.
 
2018
 
2019
 
2020
 
2021
 
2022
 
Thereafter
 
Total
Terminalling and storage
 
 
 
 
 
 
 
 
 
 
 
 
 
Storage and throughput
$
37,571

 
$
50,629

 
$
49,330

 
$
46,022

 
$
41,505

 
$
393,700

 
$
618,757

Natural gas services
 
 
 
 
 
 
 
 
 
 
 
 
 
Natural gas storage
$
31,309

 
$
32,932

 
$
27,011

 
$
25,134

 
$
24,615

 
$
12,068

 
$
153,069

Sulfur services
 
 
 
 
 
 
 
 
 
 
 
 
 
Sulfur product sales
$
12,597

 
$
16,796

 
$
4,898

 
$
1,181

 
$
295

 
$
—

 
$
35,767

Marine transportation
 
 
 
 
 
 
 
 
 
 
 
 
 
Offshore transportation
$
4,675

 
$
6,205

 
$
6,069

 
$
—

 
$
—

 
$
—

 
$
16,949

Total
$
86,152

 
$
106,562

 
$
87,308

 
$
72,337

 
$
66,415

 
$
405,768

 
$
824,542