Selected Quarterly Data (Unaudited)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Data (Unaudited)

Selected Quarterly Data (Unaudited)

	2016
	Fourth Quarter		Third Quarter		Second Quarter		First Quarter
($ in thousands, except share data)
Revenues	$	79,850	$	82,324	$	80,085	$	80,295
Operating Income	12,783		16,538		8,743		12,750
Net Income Attributable to Common Stockholders	12,426		15,625		8,088		12,363
Earnings (loss) per share—Basic	$	1.94	$	2.04	$	0.99	$	1.48
Earnings (loss) per share—Diluted	$	1.87	$	1.99	$	0.97	$	1.45

	2015
	Fourth Quarter		Third Quarter			Second Quarter		First Quarter
($ in thousands, except share data)
Revenues	$	86,115	$	92,375		$	99,656	$	103,831
Operating Income	16,506		23,112			16,208		24,542
Net Income (Loss) Attributable to Common Stockholders	6,636		(649		)	9,777		19,342
Earnings per share—Basic	$	0.78	$	(0.07	)	$	1.10	$	2.16
Earnings per share—Diluted	$	0.76	$	(0.07	)	$	1.08	$	2.11