Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2020

Compensation Related Costs [Abstract]

Long-Term Incentive Compensation Plan Expense

The following table summarizes the outstanding LTIP awards as of December 31, 2020:

	Units Outstanding	Maximum Value	Inception to date earned through December 31, 2020 on outstanding units
2016 grant	190,000	19,000,000	17,732,700
2017 grant	202,750	20,275,000	13,509,233
2018 grant	208,750	20,875,000	10,007,475
2019 grant	224,250	22,425,000	5,497,623
2020 grant	225,500	22,550,000	2,271,701

The following table summarizes the LTIP expense for each of the three years ended December 31, 2020:

(In thousands)	2020		2019		2018
2013 grant	$	—	$	—	$	(1,124)
2014 grant	—		(558)		3,227
2015 grant	(168)		3,319		5,170
2016 grant	3,176		3,548		5,148
2017 grant	2,914		3,432		4,700
2018 grant	2,776		3,310		4,317
2019 grant	2,490		3,068		—
2020 grant	2,276		—		—
Total	$	13,464	$	16,119	$	21,438