Partners' Capital, Mezzanine Equity and Distributions (Paid in Kind Distributions Paid) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||
---|---|---|---|---|---|---|---|---|
Nov. 14, 2018 |
Aug. 14, 2018 |
May 15, 2018 |
Feb. 14, 2018 |
Nov. 14, 2017 |
Dec. 31, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
Distribution Made to Limited Partner [Line Items] | ||||||||
Date Issued | Nov. 14, 2018 | Aug. 14, 2018 | May 15, 2018 | Feb. 14, 2018 | Nov. 14, 2017 | |||
Class A Convertible Preferred Stock Units | ||||||||
Distribution Made to Limited Partner [Line Items] | ||||||||
Number of Units (in units) | 523,132 | 511,934 | 500,976 | 490,252 | 162,234 | 534,576 | 2,026,294 | 162,234 |
Total Amount | $ 17,635 | $ 17,257 | $ 16,888 | $ 16,526 | $ 5,469 | $ 68,306 | $ 5,469 |