Quarterly Operating Results (Unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Operating Results (Unaudited)

Quarterly Operating Results (Unaudited)

18. Quarterly Operating Results (Unaudited)

The consolidated quarterly results for the years ended December 31, 2011 and 2010, of the Company are as follows (in thousands):

	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
Revenues — Continuing Operations
2011	$	159,058		$	218,254		$	212,334		$	245,083
2010	$	137,786		$	157,393		$	152,475		$	176,890
Operating income (loss) — Continuing Operations
2011	$	(1,558	)	$	27,979		$	3,671		$	28,626
2010	$	2,592		$	12,933		$	8,943		$	14,977
Net income (loss)
2011	$	51,335		$	38,929		$	(16,553	)	$	7,588
2010	$	(21,091	)	$	308		$	23,653		$	35,672
Income available (loss attributable) to common stockholders per share — basic
2011	$	0.39		$	0.27		$	(0.20	)	$	0.00
2010	$	(0.27	)	$	(0.05	)	$	0.19		$	0.28
Income available (loss attributable) to common stockholders per share — diluted
2011	$	0.39		$	0.26		$	(0.20	)	$	0.00
2010	$	(0.27	)	$	(0.05	)	$	0.19		$	0.28

Income available (loss attributable) to common stockholders per share is computed independently for each of the quarters presented and therefore may not sum to the annual amount for the year. Previously reported revenues and operating income have been adjusted to account for current discontinued operations in accordance with the Property, Plant and Equipment Topic of the FASB ASC.