Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Data [Abstract]

Summary of unaudited quarterly results of operations

The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2012 and 2011 (in thousands, except per share amounts).

	2012
	March 31,			June 30,			September 30,			December 31,
Revenue	$	220,827		$	188,606		$	183,800		$	172,861
Operating expenses		180,005			166,691			167,146			166,353
Gross margin		40,822			21,915			16,654			6,508
Corporate general and administrative		10,544			7,638			7,625			4,615
Operating income		30,278			14,277			9,029			1,893
Other income (expense):
Interest expense		(4,122	)		(4,146	)		(3,884	)		(4,110	)
Gain on sale of operations, net		2,589			50			21			106
Other income (expense), net		3,438			(840	)		2,570			3,254
Total other income (expense), net		1,905			(4,936	)		(1,293	)		(750	)
Income from continuing operations before income tax expense (benefit)		32,183			9,341			7,736			1,143
Income tax expense (benefit)		13,416			3,512			2,458			(58	)
Income from continuing operations		18,767			5,829			5,278			1,201
(Loss) income from operations of discontinued operations, net of tax		(4	)		1			(3	)		(13	)
Gain on disposal of discontinued operations, net of tax		22			18			32			18
Net income	$	18,785		$	5,848		$	5,307		$	1,206
Earnings per share:
Basic:
Continuing operations	$	0.38		$	0.12		$	0.11		$	0.02
Discontinued operations		—			—			—			—
Net income	$	0.38		$	0.12		$	0.11		$	0.02
Diluted:
Continuing operations	$	0.38		$	0.12		$	0.11		$	0.02
Discontinued operations		—			—			—			—
Net income	$	0.38		$	0.12		$	0.11		$	0.02
Basic weighted average common shares		49,103			49,041			48,895			48,967
Diluted weighted average common shares		49,531			49,244			49,109			49,326

These items are included in “Other income (expense), net” in the consolidated statements of comprehensive income.

	2011
	March 31,			June 30,			September 30,			December 31,
Revenue	$	210,069		$	183,464		$	177,349		$	162,923
Operating expenses		169,727			160,395			154,345			159,802
Gross margin		40,342			23,069			23,004			3,121
Corporate general and administrative		9,560			6,744			8,079			7,200
Operating income (loss)		30,782			16,325			14,925			(4,079	)
Other income (expense):
Interest expense		(4,915	)		(4,407	)		(4,049	)		(3,984	)
Gain on sale of operations, net		2,743			2			87			88
Other income (expense), net		3,081			27			(4,510	)		4,851
Total other expense, net		909			(4,378	)		(8,472	)		955
Income (loss) from continuing operations before income tax expense (benefit)		31,691			11,947			6,453			(3,124	)
Income tax expense (benefit)		13,587			5,095			1,614			(1,913	)
Income (loss) from continuing operations		18,104			6,852			4,839			(1,211	)
(Loss) gain from operations of discontinued operations, net of tax		(239	)		(331	)		(46	)		25
Gain (loss) on disposal of discontinued operations, net of tax		40			30			(76	)		20
Net income (loss)	$	17,905		$	6,551		$	4,717		$	(1,166	)
Earnings (loss) per share(1):
Basic:
Continuing operations	$	0.37		$	0.14		$	0.10		$	(0.02	)
Discontinued operations		(0.01	)		(0.01	)		–			–
Net income	$	0.36		$	0.13		$	0.10		$	(0.02	)
Diluted:
Continuing operations	$	0.36		$	0.14		$	0.10		$	(0.02	)
Discontinued operations		—			(0.01	)		—			—
Net income	$	0.36		$	0.13		$	0.10		$	(0.02	)
Basic weighted average common shares		49,322			49,615			49,525			48,854
Diluted weighted average common shares		49,755			49,958			49,920			48,854

(1) The sum of the quarterly net income per share amounts do not equal the reported annual amount as each is computed independently based upon the weighted-average number of shares outstanding for the period.