Unit Based Awards (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Compensation Costs Related to Unit Based Plan

Amounts recognized in selling, general, and administrative expense in the consolidated and condensed financial statements with respect to these plans are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Employees	$	607	$	293	$	1,209	$	922
Non-employee directors	111		56		218		142
Total unit-based compensation expense	$	718	$	349	$	1,427	$	1,064

Summary of Restricted Unit Activity

A summary of the restricted unit activity for the nine months ended September 30, 2020 is provided below:

	Number of Units		Weighted Average Grant-Date Fair Value Per Unit
Non-vested, beginning of period	379,019		$	13.91
Granted (TBRU)	81,000		$	2.53
Vested	(101,128)		$	13.95
Forfeited	(84,134)		$	13.90
Non-Vested, end of period	274,757		$	10.54
Aggregate intrinsic value, end of period	$	321

Summary of Aggregate Intrinsic Value and Fair Value of Units Vested

A summary of the restricted units’ aggregate intrinsic value (market value at vesting date) and fair value of units vested (market value at date of grant) during the three and nine months ended September 30, 2020 and 2019 is provided below:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Aggregate intrinsic value of units vested	$	—	$	—	$	151	$	1,351
Fair value of units vested	—		—		1,427		1,551