Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information (Unaudited)

Quarterly Financial Information (Unaudited)

20. Quarterly Financial Information (Unaudited)

        Summarized quarterly financial information for each of the years ended December 31, 2013 and 2012 are as follows (in thousands, except per share amounts):

	Quarter Ended
	December 31, 2013			September 30, 2013		June 30, 2013		March 31, 2013
Net sales	$	289,017		$	302,225	$	280,606	$	245,136
Gross profit		247,519			269,290		245,175		213,833
Net (loss) income(1)		(30,314	)		62,685		79,864		62,325
Net (loss) income per share—basic	$	(0.60	)	$	1.25	$	1.60	$	1.24
Net (loss) income per share—diluted	$	(0.60	)	$	1.17	$	1.52	$	1.19

	Quarter Ended
	December 31, 2012		September 30, 2012		June 30, 2012		March 31, 2012
Net sales	$	243,817	$	242,468	$	225,577	$	204,214
Gross profit		202,766		212,949		192,199		178,912
Net income		83,255		78,111		72,316		70,760
Net income per share—basic	$	1.65	$	1.52	$	1.37	$	1.32
Net income per share—diluted	$	1.60	$	1.46	$	1.34	$	1.29

(1)

Operating results for the quarter ended December 31, 2013 include a $111.2 million, net of tax charge to operating expenses related to share-based compensation expense.