Supplemental Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Quarterly Financial Information

	2013 Fiscal Quarters
	First		Second		Third		Fourth
Net sales	$	408,339	$	485,513	$	483,759	$	558,365
Gross margin (1)		118,766		137,413		134,277		169,249
Earnings before income taxes		38,537		50,336		35,497		75,201
Net earnings		27,368		42,446		23,663		52,465
Earnings per share
Basic earnings per share		0.40		0.62		0.35		0.77
Diluted earnings per share		0.39		0.61		0.34		0.76
Cash dividends per share		0.08		0.08		0.08		0.08

	2012 Fiscal Quarters
	First		Second		Third		Fourth
Net sales	$	407,896	$	468,793	$	460,241	$	528,697
Gross margin (1)		123,486		146,301		130,790		161,706
Earnings before income taxes		40,176		54,038		37,708		65,885
Net earnings		28,416		38,751		28,302		46,120
Earnings per share
Basic earnings per share		0.41		0.56		0.41		0.67
Diluted earnings per share		0.40		0.55		0.40		0.66
Cash dividends per share		0.07		0.08		0.08		0.08

Segment Reporting [Member]

Quarterly Financial Information

	2013 Fiscal Quarters
	First		Second		Third		Fourth
Segment external net sales:
Aerospace	$	211,389	$	270,493	$	272,218	$	307,377
Energy		196,950		215,020		211,541		250,988
Total	$	408,339	$	485,513	$	483,759	$	558,365
Segment earnings:
Aerospace	$	31,568	$	41,223	$	38,949	$	54,382
Energy		23,908		24,235		12,430		38,367
Total	$	55,476	$	65,458	$	51,379	$	92,749
Earnings reconciliation:
Total segment earnings	$	55,476	$	65,458	$	51,379	$	92,749
Nonsegment expenses		(10,551)		(8,174)		(9,227)		(11,109)
Interest expense, net		(6,388)		(6,948)		(6,655)		(6,439)
Consolidated earnings before income taxes	$	38,537	$	50,336	$	35,497	$	75,201

	2012 Fiscal Quarters
	First		Second		Third		Fourth
Segment external net sales:
Aerospace	$	193,226	$	224,337	$	214,474	$	264,046
Energy		214,670		244,456		245,767		264,651
Total	$	407,896	$	468,793	$	460,241	$	528,697
Segment earnings:
Aerospace	$	27,060	$	33,681	$	21,536	$	47,915
Energy		26,725		34,334		31,205		34,177
Total	$	53,785	$	68,015	$	52,741	$	82,092
Earnings reconciliation:
Total segment earnings	$	53,785	$	68,015	$	52,741	$	82,092
Nonsegment expenses		(7,427)		(7,509)		(8,687)		(9,742)
Interest expense, net		(6,182)		(6,468)		(6,346)		(6,465)
Consolidated earnings before income taxes	$	40,176	$	54,038	$	37,708	$	65,885