Equity-Based Compensation	12 Months Ended
Dec. 31, 2017
Equity Based Compensation [Abstract]
Equity-Based Compensation	Note 18. EQUITY-BASED COMPENSATION Partnership Equity-Based Awards The maximum number of common units that may be delivered with respect to awards under the Plan is 1,505,000. Generally, the Plan provides for grants of restricted units, unit options, performance awards, phantom units, unit awards, unit appreciation rights, distribution equivalent rights, and other unit-based awards, with various limits and restrictions attached to these awards on a grant-by-grant basis. The Plan is administered by the Board or a committee thereof. The Board may terminate or amend the Plan at any time with respect to any common units for which a grant has not yet been made. The Board also has the right to alter or amend the Plan or any part of the Plan from time to time, including increasing the number of common units that may be granted, subject to unitholder approval as required by the exchange upon which common units are listed at that time; however, no change in any outstanding grant may be made that would adversely affect the rights of a participant with respect to awards granted to a participant prior to the effective date of such amendment or termination, except that the Board may amend any award to satisfy the requirements of Section 409A of the Internal Revenue Code. The Plan will expire on the tenth anniversary of its approval, when common units are no longer available under the Plan for grants or upon its termination by the Board, whichever occurs first. In March 2014, we contributed our investments in our operating subsidiaries and certain other assets and liabilities to LGP Operations. Since March 2014, LGP Operations granted profits interests, which are represented by Class B Units in LGP Operations. Upon vesting, Class B Unitholders will be entitled to receive cash distributions proportionate to those received by common unitholders. Class B Units are redeemable two years after they were granted, subject to certain limitations, for cash or common units at the discretion of the Board. Because the Class B Units are an interest in the equity of LGP Operations, they represent a noncontrolling interest from our perspective. As such, the Class B Units are presented as a noncontrolling interest on the balance sheet and the Class B Unitholders’ interest in the net income of LGP Operations is presented as net income attributable to noncontrolling interests on the statement of income. It is our intent to settle the phantom units upon vesting by issuing common units and to settle the profits interests upon conversion by the grantee by issuing common units. However, the awards may be settled in cash at the discretion of the Board. Under the Plan, the Partnership granted 1,233 phantom units in June 2017 to an employee of Circle K who provides services to the Partnership; such phantom units will vest in equal annual installments on the first, second and third anniversaries of the date of grant and this award was accompanied by tandem distribution equivalent rights that entitle the holder to cash payments equal to the amount of unit distributions authorized to be paid to the holders of our common units. There were no grants of equity-based awards in 2016 to employees. There are 2,620 nonvested phantom units outstanding at December 31, 2017. Since we grant awards to employees of CST who provide services to us under the Amended Omnibus Agreement, and since the grants may be settled in cash, unvested phantom units and vested and unvested profits interests receive fair value variable accounting treatment. As such, they are measured at fair value at each balance sheet reporting date and the cumulative compensation cost recognized is classified as a liability, which is included in accrued expenses and other current liabilities on the consolidated balance sheet. The balance of the accrual at December 31, 2017 and December 31, 2016 totaled $0.7 million and $1.8 million, respectively. We record equity-based compensation as a component of general and administrative expenses in the statements of income. Compensation expense for the years ended December 31, 2017, 2016 and 2015 was $0.1 million, $1.3 million and $3.0 million, respectively. The weighted average period over which compensation expense related to nonvested awards will be recognized was approximately 1.2 years as of December 31, 2017. CST Awards Before the Merger was completed, CST granted equity-based awards of approximately 47,000, 102,000 and 163,000 in the form of time vested restricted stock units of CST, stock options of CST and market share units of CST in 2017, 2016 and 2015, respectively, which were granted to certain employees of CST for services rendered on our behalf. Certain expenses associated with these awards that were charged to us under the Amended Omnibus Agreement amounted to $1.7 million, $2.3 million and $2.2 million for 2017, 2016 and 2015, respectively. At the completion of the Merger, each CST stock option, restricted stock unit and market share unit that was outstanding immediately prior to the completion of the Merger, excluding the CST restricted stock units granted in February 2017, whether vested or unvested, became fully vested and converted into the right to receive a cash payment as defined in the Merger Agreement. The Partnership was allocated a $0.4 million charge upon the accelerated vesting of these awards, included in the expense amounts for the year ended December 31, 2017 set forth above. At the completion of the Merger, each award of CST restricted stock units that was granted in February 2017 converted into the right to receive a cash payment as defined in the Merger Agreement, but such award will remain subject to the same vesting terms and payment schedule as those set forth in the original restricted stock unit award agreement; provided that such award will vest in full upon an involuntary termination of employment without cause, or termination for “Good Reason,” or termination due to death, “Disability” or “Retirement.” Unrecognized compensation expense associated with CST restricted stock units granted in February 2017 amounted to $0.7 million as of December 31, 2017, which will be recognized over the vesting term through January 2020. Awards to Members of the Board In November 2016, the Partnership granted 5,364 phantom units to non-employee directors of the Board as a portion of director compensation. Such awards vested upon the Merger. In August 2017, the Partnership granted 10,539 phantom units to non-employee directors of the Board as a portion of director compensation. Such awards vest over one year and this award was accompanied by tandem distribution equivalent rights that entitle the holder to cash payments equal to the amount of unit distributions authorized to be paid to the holders of our common units. The liability for these awards at December 31, 2017 and December 31, 2016 was not significant. The associated compensation expense was $0.2 million and $0.3 million for 2017 and 2016, respectively. The expense for 2015 was not significant.

Note 18. EQUITY-BASED COMPENSATION

Partnership Equity-Based Awards

The maximum number of common units that may be delivered with respect to awards under the Plan is 1,505,000. Generally, the Plan provides for grants of restricted units, unit options, performance awards, phantom units, unit awards, unit appreciation rights, distribution equivalent rights, and other unit-based awards, with various limits and restrictions attached to these awards on a grant-by-grant basis. The Plan is administered by the Board or a committee thereof.

The Board may terminate or amend the Plan at any time with respect to any common units for which a grant has not yet been made. The Board also has the right to alter or amend the Plan or any part of the Plan from time to time, including increasing the number of common units that may be granted, subject to unitholder approval as required by the exchange upon which common units are listed at that time; however, no change in any outstanding grant may be made that would adversely affect the rights of a participant with respect to awards granted to a participant prior to the effective date of such amendment or termination, except that the Board may amend any award to satisfy the requirements of Section 409A of the Internal Revenue Code. The Plan will expire on the tenth anniversary of its approval, when common units are no longer available under the Plan for grants or upon its termination by the Board, whichever occurs first.

In March 2014, we contributed our investments in our operating subsidiaries and certain other assets and liabilities to LGP Operations. Since March 2014, LGP Operations granted profits interests, which are represented by Class B Units in LGP Operations. Upon vesting, Class B Unitholders will be entitled to receive cash distributions proportionate to those received by common unitholders. Class B Units are redeemable two years after they were granted, subject to certain limitations, for cash or common units at the discretion of the Board.

Because the Class B Units are an interest in the equity of LGP Operations, they represent a noncontrolling interest from our perspective. As such, the Class B Units are presented as a noncontrolling interest on the balance sheet and the Class B Unitholders’ interest in the net income of LGP Operations is presented as net income attributable to noncontrolling interests on the statement of income.

It is our intent to settle the phantom units upon vesting by issuing common units and to settle the profits interests upon conversion by the grantee by issuing common units. However, the awards may be settled in cash at the discretion of the Board.

Under the Plan, the Partnership granted 1,233 phantom units in June 2017 to an employee of Circle K who provides services to the Partnership; such phantom units will vest in equal annual installments on the first, second and third anniversaries of the date of grant and this award was accompanied by tandem distribution equivalent rights that entitle the holder to cash payments equal to the amount of unit distributions authorized to be paid to the holders of our common units. There were no grants of equity-based awards in 2016 to employees. There are 2,620 nonvested phantom units outstanding at December 31, 2017.

Since we grant awards to employees of CST who provide services to us under the Amended Omnibus Agreement, and since the grants may be settled in cash, unvested phantom units and vested and unvested profits interests receive fair value variable accounting treatment. As such, they are measured at fair value at each balance sheet reporting date and the cumulative compensation cost recognized is classified as a liability, which is included in accrued expenses and other current liabilities on the consolidated balance sheet. The balance of the accrual at December 31, 2017 and December 31, 2016 totaled $0.7 million and $1.8 million, respectively.

We record equity-based compensation as a component of general and administrative expenses in the statements of income. Compensation expense for the years ended December 31, 2017, 2016 and 2015 was $0.1 million, $1.3 million and $3.0 million, respectively. The weighted average period over which compensation expense related to nonvested awards will be recognized was approximately 1.2 years as of December 31, 2017.

CST Awards

Before the Merger was completed, CST granted equity-based awards of approximately 47,000, 102,000 and 163,000 in the form of time vested restricted stock units of CST, stock options of CST and market share units of CST in 2017, 2016 and 2015, respectively, which were granted to certain employees of CST for services rendered on our behalf. Certain expenses associated with these awards that were charged to us under the Amended Omnibus Agreement amounted to $1.7 million, $2.3 million and $2.2 million for 2017, 2016 and 2015, respectively.

At the completion of the Merger, each CST stock option, restricted stock unit and market share unit that was outstanding immediately prior to the completion of the Merger, excluding the CST restricted stock units granted in February 2017, whether vested or unvested, became fully vested and converted into the right to receive a cash payment as defined in the Merger Agreement. The Partnership was allocated a $0.4 million charge upon the accelerated vesting of these awards, included in the expense amounts for the year ended December 31, 2017 set forth above.

At the completion of the Merger, each award of CST restricted stock units that was granted in February 2017 converted into the right to receive a cash payment as defined in the Merger Agreement, but such award will remain subject to the same vesting terms and payment schedule as those set forth in the original restricted stock unit award agreement; provided that such award will vest in full upon an involuntary termination of employment without cause, or termination for “Good Reason,” or termination due to death, “Disability” or “Retirement.” Unrecognized compensation expense associated with CST restricted stock units granted in February 2017 amounted to $0.7 million as of December 31, 2017, which will be recognized over the vesting term through January 2020.

Awards to Members of the Board

In November 2016, the Partnership granted 5,364 phantom units to non-employee directors of the Board as a portion of director compensation. Such awards vested upon the Merger.

In August 2017, the Partnership granted 10,539 phantom units to non-employee directors of the Board as a portion of director compensation. Such awards vest over one year and this award was accompanied by tandem distribution equivalent rights that entitle the holder to cash payments equal to the amount of unit distributions authorized to be paid to the holders of our common units.

The liability for these awards at December 31, 2017 and December 31, 2016 was not significant. The associated compensation expense was $0.2 million and $0.3 million for 2017 and 2016, respectively. The expense for 2015 was not significant.