Summary of Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2013

Summary of Selected Quarterly Financial Data (Unaudited) [Abstract]

Summary of Selected Quarterly Financial Data (Unaudited)

11.  Summary of Selected Quarterly Financial Data (Unaudited)

The following is a summary of selected quarterly financial data for the previous two years (in thousands, except per share data):

	Quarters Ended
	March 31		June 30		Sept. 30		Dec. 31
2013
Revenues	$	334,813	$	333,081	$	321,976	$	375,401
Income from operations		31,107		26,306		25,606		30,526
Net income		19,602		16,279		15,552		16,933	(1)
Basic income per share		0.33		0.27		0.26		0.28
Diluted income per share		0.33		0.27		0.26		0.28
2012
Revenues	$	338,030	$	371,268	$	372,882	$	354,589
Income from operations		23,846		26,092		31,313		31,320
Net income		12,993		14,614		19,452		13,947	(2)
Basic income per share		0.22		0.25		0.33		0.29
Diluted income per share		0.22		0.25		0.33		0.29

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(1) In December 2013, the company recorded a $10.0 million pretax charge ($6.1 million after tax) to write off a non-current asset and a $3.7 million gain (pretax and after tax) on the sale of investments.

(2)      In December 2012, the company recorded a $10.3 million pretax debt extinguishment charge ($6.3 million after tax) related to a financing transaction.