Long-Term Incentive Plan Units (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Unvested LTIP Units

The below table details unvested OP LTIP Units as of December 31, 2020:

Grant Recipient	Number of OP LTIP Units Granted	Grant Date	Vesting Date(1)
Directors:
	22,840	September 10, 2020	September 9, 2021
Dedicated or partially dedicated personnel:
	10,067	December 13, 2019	December 13, 2021
	18,211	December 17, 2020	December 17, 2021
	9,834	March 4, 2020	December 31, 2021
	14,598	December 17, 2020	December 17, 2022
Total unvested OP LTIP Units at December 31, 2020	75,550

(1)Date at which such OP LTIP Units will vest and become non-forfeitable.

The below table details unvested OP LTIP Units as of December 31, 2018:

Grant Recipient	Number of OP LTIP Units	Grant Date	Vesting Date(1)
Directors:
	14,440	September 12, 2018	September 11, 2019
Partially dedicated employees:
	8,692	December 11, 2018	December 11, 2019
	8,691	December 11, 2018	December 11, 2020
	1,723	March 7, 2018	March 7, 2019
	5,886	December 12, 2017	December 12, 2019
Total unvested OP LTIP Units at December 31, 2018	39,432

(1)Date at which such OP LTIP Units will vest and become non-forfeitable.

Roll-Forward of Company's LTIP Units Outstanding

The following tables summarize issuance and exercise activity of OP LTIP Units for the years ended December 31, 2020 and 2019:

	Year Ended
	December 31, 2020			December 31, 2019
	Manager	Director/ Employee	Total	Manager	Director/ Employee	Total
OP LTIP Units Outstanding (December 31, 2019 and January 1, 2019, respectively)	365,518	180,198	545,716	375,000	146,371	521,371
Granted	—	70,460	70,460	—	37,437	37,437
Exercised	—	(3,638)	(3,638)	(9,482)	(3,610)	(13,092)
OP LTIP Units Outstanding (December 31, 2020 and 2019, respectively)	365,518	247,020	612,538	365,518	180,198	545,716
OP LTIP Units Unvested and Outstanding (December 31, 2020 and 2019, respectively)	—	75,550	75,550	—	46,128	46,128
OP LTIP Units Vested and Outstanding (December 31, 2020 and 2019, respectively)	365,518	171,470	536,988	365,518	134,070	499,588

The following table summarizes issuance and exercise activity of LTIP Units and OP LTIP Units for the year ended December 31, 2018:

	Year Ended December 31, 2018
	Manager	Director/ Employee	Total
LTIP Units and OP LTIP Units Outstanding (December 31, 2017)	375,000	116,159	491,159
Granted	—	33,546	33,546
Exercised	—	(3,334)	(3,334)
LTIP Units and OP LTIP Units Outstanding (December 31, 2018)	375,000	146,371	521,371
LTIP Units and OP LTIP Units Vested and Outstanding (December 31, 2018)	375,000	106,939	481,939