RESTRUCTURING AND OTHER SEVERANCE COSTS: (Tables)

3 Months Ended

Mar. 31, 2013

RESTRUCTURING AND OTHER SEVERANCE COSTS:

Schedule of restructuring and other severance costs

	Three months ended
	March 31,
($ in millions)	2013		2012
Severance/Relocation	$	1.2	$	0.6
Facility/entity closure and other	4.5		1.3
Asset write-downs	—		11.3
Restructuring charge	5.7		13.2
Other severance costs	1.4		1.0
Total	$	7.1	$	14.2

Schedule of selected information for outstanding liabilities from recent restructuring actions

				Facility/Entity
	Severance/			Closure
($ in millions)	Relocation			and Other			Total
Liability balance, December 31, 2012	$	9.8		$	1.9		$	11.7
Restructuring charge in 2013	1.2			4.5			5.7
Utilized	(2.9		)	(1.2		)	(4.1		)
Foreign exchange and other	(0.2		)	(0.1		)	(0.3		)
Liability balance, March 31, 2013	$	7.9		$	5.1		$	13.0

Schedule of total charges for open restructuring actions and the future costs

				Surface			Performance
($ in millions)	Lithium			Treatment			Additives			Total
Severance/Relocation
Total charges	$	3.8		$	4.7		$	3.7		$	12.2
Incurred to date	(3.6		)	(4.4		)	(3.1		)	(11.1		)
Expected future costs	$	0.2		$	0.3		$	0.6		$	1.1
Facility/Entity Closure
Total charges (a)	$	31.6		$	7.4		$	5.9		$	44.9
Incurred to date (a)	(30.1		)	(5.7		)	(1.7		)	(37.5		)
Expected future costs	$	1.5		$	1.7		$	4.2		$	7.4

(a) Includes $10.3 million related to write-off of a trade name in the Lithium segment in connection with the reorganization of the Specialty Chemicals segment into two reportable segments and a write-down of $12.0 million of machinery and equipment related to the closure of a Lithium manufacturing facility in the U.S.

- Definition

Tabular disclosure of restructuring and related costs by type of restructuring including the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost.

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- Definition

Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.

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