Quarterly Results of Operations (Unaudited):

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited):

15. Quarterly Results of Operations (Unaudited):

	Quarter Ended
	March 31		June 30		Sept. 30		Dec. 31
	(In thousands, except per share data)
	(Unaudited)
2014
Revenues	$	204,073	$	230,315	$	241,750	$	254,819
Cost of sales		110,787		124,993		135,250		142,497
Gross profit		93,286		105,322		106,500		112,322
Operating income		58,567		68,954		72,992		78,235
Net income		42,618		51,324		55,683		59,087
Earnings per share:
Basic(1)	$	1.05	$	1.27	$	1.41	$	1.51
Diluted(1)		1.04		1.27		1.40		1.50
2013
Revenues	$	193,155	$	222,031	$	224,724	$	232,462
Cost of sales		116,328		133,203		132,131		132,244
Gross profit		76,827		88,828		92,593		100,218
Operating income		52,177		56,215		51,985		63,168
Net income		39,842		42,927		39,995		47,063
Earnings per share:
Basic(1)	$	0.98	$	1.06	$	0.98	$	1.16
Diluted(1)		0.98		1.05		0.98		1.15

(1) The sum of the quarterly per share amounts may not equal the annual amount reported, as per share amounts are computed independently for each quarter and for the full year.