Summary of Quarterly Results (unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Results of Operations

The following table provides a summary of our quarterly results of operations for the years ended December 31, 2017 and 2016.

			Net (loss) income
			attributable to the			(Loss) Income Per Common Share
(Amounts in thousands, except per share amounts)	Revenues		common stockholders			Basic			Diluted
2017
December 31	$	180,257	$	(6,793	)	$	(0.03	)	$	(0.03	)
September 30		179,770		(10,214	)		(0.04	)		(0.04	)
June 30		177,704		103,016			0.44			0.44
March 31		181,236		372			0.00			0.00
2016
December 31	$	166,802	$	(6,489	)	$	(0.03	)	$	(0.03	)
September 30		171,318		(139	)		(0.00	)		(0.00	)
June 30		172,303		3,188			0.01			0.01
March 31		172,918		(6,494	)		(0.03	)		(0.03	)