Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 16,493	$ 15,003	$ 45,641	$ 22,873
Other comprehensive income (loss):
Change in fair value of interest rate cap	22	(1)	54	(5)
Comprehensive income	$ 16,515	$ 15,002	$ 45,695	$ 22,868