v3.8.0.1

ACQUISITIONS Narrative 2 (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Apr. 28, 2017 | Apr. 18, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |  |  |
General partner ownership interest |  |  | 2.00% | 2.00% | 2.00%
Common Limited Partner [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Issuance of units (units) |  | 14,375,000 | 14,375,000 | 595,050 |
Net proceeds from issuance of units |  |  | $ 643,878 | $ 27,710 |
General Partner [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net proceeds from issuance of units |  | $ 13,600 | $ 13,597 | $ 575 |
General partner ownership interest |  |  | 2.00% |  |
Series B Preferred Limited Partner [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Issuance of units (units) | 15,400,000 |  |  |  |
Net proceeds from issuance of units | $ 371,800 |  |  |  |
5.625% senior notes |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Senior notes issued | $ 550,000 |  |  |  |
Stated interest rate | 5.625% |  | 5.625% |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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