Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 85.9	$ 227.0
Accounts receivable, net	271.0	234.7
Inventories, net	353.8	334.4
Contract assets	31.2	25.1
Prepaid expenses and other current assets	47.8	43.0
Total current assets	789.7	864.2
Property, plant and equipment	3,194.8	3,195.5
Less accumulated depreciation	(1,536.6)	(1,516.8)
Net property, plant and equipment	1,658.2	1,678.7
Goodwill and other intangible assets, net	248.7	251.3
Investments in affiliated companies	5.0	5.0
Other assets	119.6	119.3
Total assets	2,821.2	2,918.5
Current liabilities:
Short-term borrowings	0.1	0.1
Accounts payable	128.1	159.1
Accrued compensation and benefits	67.3	75.7
Financial instruments	4.5	6.0
Accrued liabilities	88.6	75.0
Total current liabilities	288.6	315.9
Long-term debt	714.6	699.4
Retirement obligations	44.3	42.6
Deferred income taxes	108.4	110.6
Other non-current liabilities	33.2	33.5
Total liabilities	1,189.1	1,202.0
Stockholders' equity:
Common stock, $0.01 par value, 200.0 shares authorized, 111.3 shares and 110.8 shares issued at March 31, 2024 and December 31, 2023, respectively	1.1	1.1
Additional paid-in capital	954.6	936.8
Retained earnings	2,192.6	2,168.7
Accumulated other comprehensive loss	(89.0)	(74.1)
Total stockholders' equity including treasury stock value	3,059.3	3,032.5
Less -Treasury stock, at cost, 28.2 shares at March 31, 2024 and 26.7 shares at December 31, 2023	(1,427.2)	(1,316.0)
Total stockholders' equity	1,632.1	1,716.5
Total liabilities and stockholders' equity	$ 2,821.2	$ 2,918.5