Contingently Redeemable Preferred Units (Tables)

12 Months Ended

Dec. 31, 2020

Temporary Equity Disclosure [Abstract]

Activities Attributable to Preferred Units

During the years ended December 31, 2020 and 2019, activities attributable to the EES Preferred Units was as follows:

	Preferred Units
	Units	Amount
Balance, December 31, 2018	68,716	$	105,548
Contributions allocated to EES Preferred Units	11,991	2,031
Discount on convertible notes, beneficial conversion feature	—	1,786
Balance, December 31, 2019	80,707	109,365
Contributions allocated to EES Preferred Units	10,598	1,759
Issuance of EES Preferred Units	20,000	10,000
Balance, November 16, 2020	111,305	$	121,124