Revenues from Contracts with Customers (Tables)

9 Months Ended

Jun. 30, 2020

Revenues from Contracts with Customers

Schedule of disaggregation of revenue

	Three Months Ended				Nine Months Ended
	June 30,				June 30,
	2019		2020		2019		2020
Net revenues (dollars in thousands)
Aerospace	$	66,321	$	40,375	$	189,786	$	158,390
Chemical processing		21,197		12,143		61,878		44,687
Industrial gas turbine		15,870		13,673		43,638		44,137
Other markets		15,666		11,203		46,909		35,840
Total product revenue		119,054		77,394		342,211		283,054
Other revenue		6,978		3,182		18,364		17,538
Net revenues	$	126,032	$	80,576	$	360,575	$	300,592