v3.8.0.1

ACQUISITIONS (Tables) | 12 Months Ended
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Dec. 31, 2017
Business Combinations [Abstract] |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] | The following table reflects the preliminary purchase price allocation as of December 31, 2017:
| Preliminary Purchase Price Allocation
| (Thousands of Dollars)
Accounts receivable | $ | 4,747 |
Other current assets | 2,359 |
Property, plant and equipment, net | 376,690 |
Intangible assets (a) | 700,000 |
Goodwill (b) | 400,838 |
Other long-term assets, net | 2,199 |
Current liabilities | (25,114 | )
Preliminary purchase price allocation, net of cash acquired | $ | 1,461,719 |
(a) | Intangible assets, which consist of customer contracts and relationships, are expected to be amortized on a straight-line basis over a period of 20 years.
(b) | The goodwill acquired represents the expected benefit from entering new geographic areas and the anticipated opportunities to generate future cash flows from the assets acquired and potential future projects.
Navigator Acquisition Additional Financial Information [Table Text Block] | The table below presents certain financial information included in the consolidated statements of income related to the Navigator Acquisition:
| Year Ended December 31, 2017
| (Thousands of Dollars)
Permian Crude System: |
Revenues | $ | 42,620 |
Operating loss | $ | (1,724 | )
Transaction costs: |
General and administrative expenses | $ | 10,391 |
Interest expense, net | 3,688 |
Total transaction costs | $ | 14,079 |
Business Acquisition, Pro Forma Information [Table Text Block] | The unaudited pro forma information for the years ended December 31, 2017 and 2016 presented below combines the historical financial information for Navigator and the Partnership for those periods. The information assumes we completed the Navigator Acquisition on January 1, 2016 and the following:
• | we issued approximately 14.4 million common units;
• | we received a contribution from our general partner of $13.6 million to maintain its 2% interest;
• | we issued 15.4 million Series B Preferred Units;
• | we issued $550.0 million of 5.625% senior notes;
• | additional depreciation and amortization that would have been incurred assuming the fair value adjustments to property, plant and equipment and intangible assets reflected in the preliminary purchase price allocation above; and
• | we satisfied Navigator’s outstanding obligations under its revolving credit agreement.
| Pro Forma Year Ended December 31,
| 2017 |  | 2016
| (Thousands of Dollars, Except Per Unit Data)
Revenues | $ | 1,828,418 |  |  | $ | 1,782,932 |
Net income | $ | 127,433 |  |  | $ | 78,664 |
Basic and diluted net income per common unit | $ | 0.31 |  |  | $ | 0.01 |
The pro forma information for the year ended December 31, 2017 includes transaction costs of $14.1 million, which were directly attributable to the Navigator Acquisition. The pro forma information is unaudited and is not necessarily indicative of the results of operations that would have resulted had the Navigator Acquisition occurred on January 1, 2016 or that may result in the future.
Schedule of Business Acquisitions, by Acquisition [Table Text Block] | The final purchase price allocation was as follows (in thousands of dollars):
Cash paid for the Linden Acquisition | $ | 142,500 |
Fair value of liabilities assumed | 22,865 |
Consideration | 165,365 |
Acquisition date fair value of previously held equity interest | 128,000 |
Total | $ | 293,365 |
Current assets (a) | $ | 9,513 |
Property, plant and equipment | 134,484 |
Goodwill | 79,208 |
Intangible assets (b) | 70,050 |
Other long-term assets | 110 |
Purchase price allocation | $ | 293,365 |
(a) | Current assets include a receivable of $7.8 million related to a pre-acquisition insurance claim, for which proceeds were received in 2015.
(b) | Intangible assets primarily consist of customer contracts and relationships and are being amortized over 10 years.

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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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