Balance Sheet Related Information (Tables)

12 Months Ended

Dec. 31, 2012

Balance Sheet Related Information [Abstract]

Allowance for doubtful accounts

We are exposed to credit risk on certain assets, primarily accounts receivable. We provide credit to customers in the ordinary course of business and perform ongoing credit evaluations. Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers comprising our customer base. We believe our allowance for doubtful accounts is sufficient to cover customer credit risks. The allowance for doubtful accounts as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	7.5		$	6.6		$	6.3
Charged to expense (income)		5.3			3.6			2.4
Write-offs and currency translation adjustments		(1.8	)		(2.7	)		(2.1	)
Balance at the end of the year		11.0			7.5			6.6

Inventories

Inventories at December 31 consisted of:

	2012		2011
Crude stockpile inventories	$	60.8	$	53.4
In-process and finished goods inventories		70.5		65.0
Other raw material, container, and supplies inventories		22.5		25.9
		153.8		144.3

Inventory, raw materials and supplies, net of reserves

Included within Other raw material, container, and supplies inventories in the table above is our reserve for slow moving and obsolete inventory. The balance of this reserve as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	2.1		$	2.7		$	2.1
Charged to costs and expenses		2.1			2.1			4.0
Disposals and currency translation adjustments		(1.6	)		(2.7	)		(3.4	)
Balance at the end of the year		2.6			2.1			2.7

Reclamation liability

The following table presents our reclamation liability at the end of and changes during each of the years presented:

	2012			2011
Balance at beginning of the year	$	9.3		$	8.0
Settlement of obligations		(3.9	)		(4.3	)
Liabilities incurred and accretion expense		4.2			6.0
Currency translation adjustments		(0.1	)		(0.4	)
Balance at the end of the year		9.5			9.3

Accrued liabilities

Accrued liabilities at December 31 consisted of:

	2012		2011
Bonus	$	11.5	$	9.7
Employee benefits and related costs		10.8		10.2
Dividends payable		6.4		5.7
Other		29.7		33.6
		58.4		59.2

Accumulated other comprehensive income (loss)

Accumulated other comprehensive income (loss) at December 31 was comprised of the following components:

	2012			2011
Cumulative foreign currency translation	$	6.0		$	0.6
Prior service cost on pension plans (net of tax benefit of $0.1 in 2012 and $0.1 in 2011)		(0.2	)		(0.2	)
Net actuarial loss on pension plans (net of tax benefit of $7.8 in 2012 and $6.9 in 2011)		(12.0	)		(11.9	)
Unrealized loss on interest rate swap agreement (net of tax benefit of $3.3 in 2012 and $3.3 in 2011)		(5.1	)		(5.7	)
Unrealized gain on available-for-sale securities (net of tax expense of $1.2 in 2012 and $0 in 2011)		12.1			2.5
		0.8			(14.7	)