Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Results of Operations (Unaudited) [Abstract]

Schedule of Quarterly Financial Information

The following is a tabulation of the unaudited quarterly results of operations for the two years ended December 31, 2013:

	Three Months Ended
	3/30/13		6/29/13		9/28/13		12/31/13
Net Sales	$	155,905	$	179,528	$	170,942	$	181,901
Gross profit		61,309		70,724		62,940		63,632
Net income		23,718		32,308		28,671		26,575
Basic earnings per share		1.23		1.67		1.48		1.37
Diluted earnings per share	$	1.20	$	1.63	$	1.44	$	1.33

	Three Months Ended
	3/31/12		6/30/12		9/29/12		12/31/12
Net Sales	$	112,337	$	119,569	$	118,152	$	141,766
Gross profit		41,793		45,134		42,565		49,461
Net income		15,480		18,014		17,349		19,786
Basic earnings per share		0.81		0.94		0.91		1.03
Diluted earnings per share	$	0.79	$	0.91	$	0.88	$	1.00