Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 14,856	$ 3,545	$ 17,422	$ 7,045
Other comprehensive income (loss):
Change in fair value of interest rate hedges	(10,023)	1,532	(14,950)	4,887
Realized (gains) losses on interest rate hedges reclassified to earnings	467	(306)	1,026	(480)
Total other comprehensive income (loss)	(9,556)	1,226	(13,924)	4,407
Comprehensive income (loss) before allocation to noncontrolling interests	5,300	4,771	3,498	11,452
Allocation to noncontrolling interests	(52)	(49)	(34)	(54)
Comprehensive income (loss)	$ 5,248	$ 4,722	$ 3,464	$ 11,398