Revenues from Contracts with Customers (Tables)

6 Months Ended

Mar. 31, 2020

Revenues from Contracts with Customers

Schedule of disaggregation of revenue

	Three Months Ended				Six Months Ended
	March 31,				March 31,
	2019		2020		2019		2020
Net revenues (dollars in thousands)
Aerospace	$	68,858	$	59,172	$	123,465	$	118,015
Chemical processing		21,761		15,832		40,681		32,544
Industrial gas turbine		13,685		16,701		27,768		30,464
Other markets		16,958		12,762		31,243		24,637
Total product revenue		121,262		104,467		223,157		205,660
Other revenue		6,212		7,096		11,386		14,356
Net revenues	$	127,474	$	111,563	$	234,543	$	220,016