Quarterly Operating Results-(Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Operating Results

Quarterly results for the years ended December 31, 2012 and 2011 were as follows:

	Three Months Ended
	March 31		June 30		September 30		December 31
2012
Revenues	$	163,166	$	177,614	$	151,134	$	153,622
Gross profit		63,464		64,253		50,150		45,638
Net income		30,291		31,917		23,898		19,827
Earnings per share:
Basic	$	1.31	$	1.38	$	1.04	$	0.86
Diluted	$	1.31	$	1.38	$	1.04	$	0.86
2011
Revenues	$	150,830	$	149,669	$	167,083	$	158,123
Gross profit		62,056		62,118		72,693		64,848
Net income		30,164		29,944		36,911		33,117
Earnings per share:
Basic	$	1.30	$	1.29	$	1.59	$	1.43
Diluted	$	1.30	$	1.29	$	1.59	$	1.43