Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Unaudited Quarterly Financial Data

The sum of the quarterly per share amounts may not equal the annual totals due to rounding.

	2012
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter
Revenues	$	238,915		$	253,229		$	228,129		$	266,321
Depreciation and amortization		32,434			30,254			30,701			37,302
Operating income (loss)		21,684			31,608			(33,449	)		(24,597	)
Income (loss) before income taxes and discontinued operations		10,476			20,287			(43,253	)		(16,179	)
(Provision) benefit for income taxes		(4,469	)		(11,314	)		16,581			1,236
Income (loss) from continuing operations		6,007			8,973			(26,672	)		(14,943	)
Income (loss) from discontinued operations, net of taxes		21			(19	)		(2	)		(9	)
Net income (loss)		6,028			8,954			(26,674	)		(14,952	)
Net income (loss) per share		0.12			0.18			(0.57	)		(0.32	)
Net income (loss) per share — assuming dilution		0.12			0.17			(0.57	)		(0.32	)

	2011
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter
Revenues	$	220,738		$	236,775		$	225,232		$	269,399
Depreciation and amortization		29,057			29,271			32,367			34,594
Operating income		14,726			31,200			13,837			19,768
Income (loss) before income taxes and discontinued operations		(2,928	)		13,432			(722	)		7,706
(Provision) benefit for income taxes		967			(4,799	)		(937	)		(2,651	)
Income (loss) from continuing operations		(1,961	)		8,633			(1,659	)		5,055
Income from discontinued operations, net of taxes		4			4			53			48
Net income (loss)		(1,957	)		8,637			(1,606	)		5,103
Net income (loss) per share		(0.04	)		0.18			(0.03	)		0.11
Net income (loss) per share — assuming dilution		(0.04	)		0.17			(0.03	)		0.10