UNAUDITED QUARTERLY FINANCIAL INFORMATION

12 Months Ended

Dec. 31, 2011

UNAUDITED QUARTERLY FINANCIAL INFORMATION [Abstract]

UNAUDITED QUARTERLY FINANCIAL INFORMATION

15. UNAUDITED QUARTERLY FINANCIAL INFORMATION

Quarterly financial information for 2011 and 2010 is as follows:

	Quarter
2011	First		Second		Third			Fourth
Revenues	$	145,358	$	128,224	$	123,482		$	115,561
Operating income (loss)		18,475		9,338		(5,043	)		12,114
Net income (loss)		10,356		4,930		(3,926	)		6,179
Income per share:
Basic
Net income (loss) per share	$	0.47	$	0.22	$	(0.18	)	$	0.28
Diluted
Net income (loss) per share	$	0.46	$	0.22	$	(0.18	)	$	0.28

	Quarter
2010	First		Second		Third		Fourth
Revenues	$	152,466	$	152,795	$	167,211	$	167,022
Operating income		25,320		22,983		32,376		41,962
Net income		14,460		13,195		18,881		23,195
Income per share:
Basic
Net income per share	$	0.57	$	0.51	$	0.77	$	1.06
Diluted
Net income per share	$	0.55	$	0.50	$	0.76	$	1.04