Condensed quarterly financial information is as follows (amounts in thousands, except per share amounts):

	Year Ended March 31, 2019
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Annual Amount
Sales
Product	$	322,817	$	309,475	$	310,443	$	280,460		1,223,195
Service		33,715		35,568		35,221		44,974		149,478
Total net sales		356,532		345,043		345,664		325,434		1,372,673

Cost of Sales
Product		255,812		238,134		241,856		216,662		952,464
Service		20,017		21,409		20,895		27,500		89,821
Total cost of sales		275,829		259,543		262,751		244,162		1,042,285
Gross profit		80,703		85,500		82,913		81,272		330,388

Selling, general, and administrative expenses		56,966		57,705		59,728		62,683		237,082
Depreciation and amortization		2,790		2,741		2,719		3,574		11,824
Interest and financing costs		476		484		443		545		1,948
Operating expenses		60,232		60,930		62,890		66,802		250,854
Operating income		20,471		24,570		20,023		14,470		79,534
Other income and (expense)		97		322		721		5,556		6,696
Earnings before provision for income taxes		20,568		24,892		20,744		20,026		86,230
Provision for income taxes		5,295		6,889		5,880		4,974		23,038
Net earnings	$	15,273	$	18,003	$	14,864	$	15,052	$	63,192

Net earnings per common share— Basic (1)	$	1.14	$	1.33	$	1.10	$	1.12	$	4.70
Net earnings per common share— Diluted (1)	$	1.12	$	1.33	$	1.10	$	1.12	$	4.65

(1)	Basic and diluted earnings per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.

	Year Ended March 31, 2018
	First Quarter		Second Quarter			Third Quarter			Fourth Quarter			Annual Amount
	(as adjusted)

Sales
Product	$	346,245	$	339,710		$	310,120		$	293,232			1,289,307
Service		27,111		31,653			34,106			36,625			129,495
Total net sales		373,356		371,363			344,226			329,857			1,418,802

Cost of Sales
Product		280,755		266,732			247,891			228,212			1,023,590
Service		15,008		17,060			19,647			20,015			71,730
Total cost of sales		295,763		283,792			267,538			248,227			1,095,320

Gross profit		77,593		87,571			76,688			81,630			323,482

Selling, general, and administrative expenses		54,664		56,340			57,134			59,989			228,127
Depreciation and amortization		2,063		2,129			2,894			2,835			9,921
Interest and financing costs		359		274			270			292			1,195
Operating expenses		57,086		58,743			60,298			63,116			239,243
Operating income		20,507		28,828			16,390			18,514			84,239
Other income and (expense)		271		(141	)		(131	)		(347	)		(348	)
Earnings before provision for income taxes		20,778		28,687			16,259			18,167			83,891
Provision for income taxes		7,355		11,466			678			9,270			28,769
Net earnings	$	13,423	$	17,221		$	15,581		$	8,897		$	55,122

Net earnings per common share— Basic (1)	$	0.97	$	1.24		$	1.12		$	0.65		$	4.00
Net earnings per common share— Diluted (1)	$	0.96	$	1.23		$	1.11		$	0.65		$	3.95

(1)	Basic and diluted earnings per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.