Operating Segments and Related Disclosures (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Schedule of Selected Financial Information for Each Reportable Segment

The following table presents selected financial information for each reportable segment:

	Three months ended March 31,
	2023		2022
	(In millions)
Net Sales:
Aerospace and Defense	$	565.7	$	510.5
Real Estate	0.6		0.6
Total Net Sales	$	566.3	$	511.1
Segment Performance:
Aerospace and Defense	$	55.7	$	62.7
Environmental remediation provision adjustments	(0.3)		(0.4)
GAAP/Cost Accounting Standards retirement benefits expense difference	9.5		9.2
Unusual items (see Note 11)	(3.8)		(16.3)
Aerospace and Defense Total	61.1		55.2
Real Estate	(0.3)		(0.1)
Total Segment Performance	$	60.8	$	55.1
Reconciliation of segment performance to income before income taxes:
Segment performance	$	60.8	$	55.1
Interest expense	(5.7)		(3.9)
Interest income and other	3.8		(0.2)
Stock-based compensation	(4.5)		0.9
Corporate retirement benefits	0.8		—
Corporate and other	(5.2)		(8.2)
Unusual items (see Note 11)	(16.2)		(5.4)
Income before income taxes	$	33.8	$	38.3

Summary of Customers that Represented More than 10% of Net Sales

The following table summarizes customers that represented more than 10% of net sales:

	Three months ended March 31,
	2023		2022
Lockheed Martin Corporation	31	%	34	%
Raytheon Technologies Corporation	20		17
NASA	19		18