Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Results of Operations

The following is a summary of quarterly results of operations for the years ended December 31, 2019 and 2018:

	2019 Quarter Ended								2018 Quarter Ended
	Dec 31		Sep 30		Jun 30		Mar 31		Dec 31		Sep 30		Jun 30		Mar 31
Revenues	$	241,841	$	231,127	$	227,972	$	226,522	$	246,874	$	242,198	$	234,545	$	236,734
Net income (loss) attributable to the Company	$	26,891	$	46,371	$	15,734	$	7,824	$	11,749	$	74,028	$	7,816	$	(33,573)
Net income (loss) attributable to common stockholders per share-basic	$	0.19	$	0.33	$	0.11	$	0.05	$	0.08	$	0.52	$	0.05	$	(0.24)
Net income (loss) attributable to common stockholders per share-diluted	$	0.19	$	0.33	$	0.11	$	0.05	$	0.08	$	0.52	$	0.05	$	(0.24)