Segment Information (Tables)

3 Months Ended

Dec. 31, 2019

Segment Information [Abstract]

Summary of Consolidated Net Sales and Earnings by Segment

	Three-Months Ended
	December 31,
	2019		2018
Segment external net sales:
Aerospace	$	473,925	$	392,887
Industrial		246,430		259,924
Total consolidated net sales	$	720,355	$	652,811
Segment earnings:
Aerospace	$	92,911	$	72,854
Industrial		28,230		29,169
Nonsegment expenses		(51,071)		(29,001)
Interest expense, net		(8,522)		(11,507)
Consolidated earnings before income taxes	$	61,548	$	61,515

Summary of Consolidated Total Assets by Segment

	December 31, 2019		September 30, 2019
Segment assets:
Aerospace	$	1,905,846	$	1,900,657
Industrial		1,520,687		1,561,441
Unallocated corporate property, plant and equipment, net		108,669		114,887
Other unallocated assets		471,967		379,541
Consolidated total assets	$	4,007,169	$	3,956,526