Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 35.9	$ 20.0
Restricted cash	0.0	1.4
Receivables, net of allowance for current expected credit losses of $1.6 and $1.5 at December 31, 2020 and 2019	160.6	159.4
Inventories	263.3	281.4
Other current assets	15.2	3.6
Total current assets	474.9	465.8
Property, plant and equipment, net	1,191.5	1,257.7
Operating lease right-of-use assets	63.5	73.1
Goodwill and intangible assets, net	48.8	52.0
Other assets, net	21.7	29.1
TOTAL ASSETS	1,800.4	1,877.7
Current liabilities:
Current portion of long-term debt	1.7	17.9
Trade payables	143.4	159.5
Accrued compensation	41.7	42.3
Other accrued liabilities	58.0	60.7
Total current liabilities	244.8	280.4
Net long-term portion	716.4	884.5
Long-term operating lease liabilities	54.3	65.6
Liability for pension and other postretirement employee benefits	80.5	76.6
Other long-term obligations	25.2	17.3
Deferred tax liabilities	158.1	121.3
TOTAL LIABILITIES	1,279.3	1,445.7
Stockholders' equity:
Preferred stock, par value $0.0001 per share, 5,000,000 shares authorized, no shares issued	0.0	0.0
Common stock, par value $0.0001 per share, 100,000,000 shares authorized, 16,573,246 and 16,515,813 shares issued	0.0	0.0
Additional paid-in capital	16.6	9.8
Retained earnings	558.8	481.7
Accumulated other comprehensive loss, net of tax	(54.3)	(59.5)
Total stockholders’ equity	521.1	432.0
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,800.4	$ 1,877.7
Preferred Stock, Par or Stated Value Per Share	$ 0.0001
Preferred Stock, Shares Authorized	5,000,000
Common Stock, Par or Stated Value Per Share	$ 0.0001
Common stock, authorized (in shares)	100,000,000
Common stock, shares issued (in shares)	16,573,246	16,515,813

Carrying value as of the balance sheet date of obligations 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).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).