Revenue (Schedule of Revenue Recognition Time) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 720,355	$ 652,811
Point In Time [Member]
Disaggregation of Revenue [Line Items]
Net sales	355,457	336,176
Over Time [Member]
Disaggregation of Revenue [Line Items]
Net sales	364,898	316,635
Aerospace [Member]
Disaggregation of Revenue [Line Items]
Net sales	473,925	392,887
Aerospace [Member] | Point In Time [Member]
Disaggregation of Revenue [Line Items]
Net sales	187,515	164,014
Aerospace [Member] | Over Time [Member]
Disaggregation of Revenue [Line Items]
Net sales	286,410	228,873
Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	246,430	259,924
Industrial [Member] | Point In Time [Member]
Disaggregation of Revenue [Line Items]
Net sales	167,942	172,162
Industrial [Member] | Over Time [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 78,488	$ 87,762