CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 269.3	$ 203.0
Accounts receivable, net	251.8	200.5
Inventories	215.8	199.3
Other current assets	40.0	39.1
Total current assets	776.9	641.9
Property, plant and equipment	1,701.2	1,554.7
Less: accumulated depreciation and amortization	865.8	776.4
Property, plant and equipment, net	835.4	778.3
Investments in affiliated companies	84.6	82.7
Goodwill	107.1	103.0
Deferred income taxes	87.2	66.2
Intangible assets, net	22.5	23.3
Other noncurrent assets	16.7	21.3
Total Assets	1,930.4	1,716.7
Current liabilities:
Notes payable and other current debt	33.2	2.4
Accounts payable	121.9	122.0
Pension and other postretirement benefits	2.3	2.2
Accrued salaries, wages and benefits	62.9	51.6
Income taxes payable	7.4	4.5
Other current liabilities	72.3	58.3
Total current liabilities	300.0	241.0
Long-term debt	196.6	226.2
Deferred income taxes	8.9	9.2
Pension and other postretirement benefits	62.0	75.6
Other long-term liabilities	46.0	47.2
Total Liabilities	613.5	599.2
Commitments and contingencies (Note 14)
Equity:
Preferred stock, 3.0 million shares authorized; 0 shares issued and outstanding	0.0	0.0
Common stock, $0.25 par value; 100.0 million shares authorized; issued: 75.1 million and 73.7 million; outstanding: 74.3 million and 73.1 million	18.7	18.4
Capital in excess of par value	302.9	260.4
Retained earnings	1,188.6	1,071.6
Accumulated other comprehensive loss	(130.6)	(186.8)
Treasury stock, at cost (0.8 million and 0.6 million shares)	(62.7)	(46.1)
Total Equity	1,316.9	1,117.5
Total Liabilities and Equity	$ 1,930.4	$ 1,716.7

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.