Real Estate Pro Forma Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Real Estate [Line Items]
Total revenue	$ 81,347	$ 84,374	$ 82,109	$ 96,743	$ 98,947	$ 98,362	$ 84,113	$ 85,319	$ 344,573	$ 366,741	$ 330,867
Operating Expenses									255,992	253,056	251,332
Operating income (loss)	16,415	20,323	22,995	28,848	29,993	30,384	24,487	28,821	88,581	113,685	79,535
Net income	$ 3,788	$ 6,490	$ 9,826	$ 15,484	$ 16,485	$ 16,519	$ 11,941	$ 15,243	$ 35,588	60,188	27,202
Pro Forma
Real Estate [Line Items]
Total revenue										383,125	365,326
Operating Expenses										264,107	281,253
Operating income (loss)										119,018	84,073
Net income										$ 64,278	$ 30,662