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Partners' Capital, Mezzanine Equity and Distributions (Change in Class A Convertible Preferred Units) (Details) - USD ($) $ in Thousands | 1 Months Ended | 6 Months Ended
--- | --- | ---
May 01, 2018 | Jan. 31, 2018 | Jun. 30, 2018
Mezzanine Capital Balance |  |  |
Balance as of December 31, 2017 |  | $ 697,151 | $ 697,151
Balance as of June 30, 2018 |  |  | $ 728,459
Number of Class A Convertible Preferred Units |  |  |
Balance as of December 31, 2017 |  | 22,411,728 | 22,411,728
Balance as of June 30, 2018 |  |  | 23,402,956
Class A Convertible Preferred Stock Units |  |  |
Mezzanine Capital Balance |  |  |
Balance as of December 31, 2017 |  | $ 697,151 | $ 697,151
Distribution paid-in-kind | $ 16,900 | $ 16,500 | 33,414
Allocation of Distribution paid in-kind to Preferred Distribution Rate Reset Election (Note 16) |  |  | (2,106)
Balance as of June 30, 2018 |  |  | $ 728,459
Number of Class A Convertible Preferred Units |  |  |
Balance as of December 31, 2017 |  | 22,411,728 | 22,411,728
Distribution paid-in-kind | 500,976 | 490,252 | 991,228
Balance as of June 30, 2018 |  |  | 23,402,956

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- Definition Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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