Supplemental Balance Sheet Information (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Balance Sheet Disclosures

Supplemental Balance Sheet Information

	September 30, 2019			December 31, 2018
	(In millions of dollars)
Cash and Cash Equivalents
Cash and money market funds	$	29.3		$	22.9
Commercial paper	142.8			102.7
Total	$	172.1		$	125.6
Trade Receivables, Net
Billed trade receivables	$	188.9		$	179.5
Unbilled trade receivables	—			1.1
Trade receivables, gross	188.9			180.6
Allowance for doubtful receivables	(0.8		)	(0.8		)
Trade receivables, net	$	188.1		$	179.8
Inventories
Finished products	$	41.4		$	48.0
Work-in-process	80.5			85.6
Raw materials	63.7			75.0
Operating supplies	6.9			6.5
Total	$	192.5		$	215.1
Property, Plant and Equipment, Net
Land and improvements	$	21.4		$	21.4
Buildings and leasehold improvements	99.2			97.0
Machinery and equipment	797.9			755.6
Construction in progress	35.4			43.6
Property, plant and equipment, gross	953.9			917.6
Accumulated depreciation	(341.2		)	(307.4		)
Assets held for sale	1.6			1.6
Property, plant and equipment, net	$	614.3		$	611.8
Other Accrued Liabilities
Uncleared cash disbursements	$	3.7		$	4.8
Accrued income taxes and taxes payable	8.0			6.5
Accrued annual contribution to Salaried VEBA	—			2.1
Accrued interest	8.4			2.9
Accrued environmental – Note 7	4.3			2.6
Other – Note 3 and Note 5	25.7			25.1
Total	$	50.1		$	44.0

	September 30, 2019		December 31, 2018
	(In millions of dollars)
Long-Term Liabilities
Workers' compensation accruals	$	26.9	$	24.6
Long-term environmental accrual – Note 7	12.2		14.3
Other long-term liabilities	26.3		27.5
Total	$	65.4	$	66.4