Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 57.5	$ 47.5
Trade receivables, net of allowances	204.6	236.1
Contract assets	76.9	68.3
Inventories	195.7	197.3
Other current assets	62.7	66.9
Total current assets	597.4	616.1
Property, plant and equipment, net of accumulated depreciation of $321.1 and $308.2, respectively	263.3	268.0
Goodwill	548.0	543.9
Intangible assets, net	298.6	299.1
Other assets	87.0	78.8
Total Assets	1,794.3	1,805.9
Current Liabilities:
Short-term debt	0.5	2.4
Accounts payable, trade and other	150.0	140.7
Advance and progress payments	145.9	137.5
Other current liabilities	173.0	176.9
Total current liabilities	469.4	457.5
Long-term debt	469.3	522.5
Accrued pension and other postretirement benefits, less current portion	89.9	94.1
Other liabilities	93.6	94.7
Commitments and contingencies (Note 12)
Stockholders' Equity:
Preferred stock, $0.01 par value; 20,000,000 shares authorized; no shares issued in 2021 or 2020	0.0	0.0
Common stock, $0.01 par value; 120,000,000 shares authorized; September 30, 2020: 31,741,607 issued and 31,729,044 outstanding and December 31, 2019: 31,741,607 issued and 31,666,654 outstanding	0.3	0.3
Common stock held in treasury, at cost September 30, 2020: 12,563 shares and December 31, 2019: 74,953 shares	(0.9)	(1.0)
Additional paid-in capital	231.6	229.9
Retained earnings	651.6	627.8
Accumulated other comprehensive loss	(210.5)	(219.9)
Total stockholders' equity	672.1	637.1
Total Liabilities and Stockholders' Equity	$ 1,794.3	$ 1,805.9