XML 97 R37.htm IDEA: XBRL DOCUMENT v2.3.0.15
Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2011
Fair Value Disclosures [Abstract] 
Assumptions used in determining fair value of the Call Option
The significant assumptions used in the determining the fair value of the Call Options at September 30, 2011 were as follows:
Stock price at September 30, 20111
$
44.28

Quarterly dividend yield (per share)2
$
0.24

Risk-free interest rate3
0.56
%
Credit spread (basis points)4
700

Expected volatility rate5
36
%
______________________
1 
The Company’s stock price has the most material impact to the fair values of the Call Options and the Notes, which drives the fair value of the Bifurcated Conversion Feature.
2 
The Company used a discrete quarterly dividend payment of $0.24 per share based on historical and expected future quarterly dividend payments.
3 
The risk-free rate was based on the five-year and three-year Constant Maturity Treasury rate on September 30, 2011, compounded semi-annually.
4 
The Company’s credit rating was estimated to be between BB- and B+ based on comparisons of its financial ratios and size to those of other rated companies. Using the Merrill Lynch High Yield index, the Company identified credit spreads for other debt issuances with similar credit ratings and used the median of such credit spreads.
5 
The volatility rate was based on both observed volatility, which is based on the Company’s historical stock price, and implied volatility from the Company’s traded options. Such volatility was further adjusted to take into consideration market participant risk tolerance.
Summary of assets and liabilities measured and recognized at fair value on a recurring basis
The following table presents the Company’s derivative assets and liabilities, classified under the appropriate level of the fair value hierarchy, as of September 30, 2011:
 
Level 1
 
Level 2
 
Level 3
 
Total
Derivative assets:
 
 
 
 
 
 
 
Aluminum -
 
 
 
 
 
 
 
Call option purchase contracts
$

 
$
0.5

 
$

 
$
0.5

Fixed priced purchase contracts

 
1.4

 

 
1.4

Fixed priced sales contracts

 
0.5

 

 
0.5

Midwest premium swap contracts

 

 
0.7

 
0.7

Natural Gas -
 
 
 
 
 
 
 
Put option purchase contracts

 
0.9

 

 
0.9

Hedges Relating to the Notes -
 
 
 
 
 
 
 
Call Options

 
38.2

 

 
38.2

Total
$

 
$
41.5

 
$
0.7

 
$
42.2

 
 
 
 
 
 
 
 
Derivative liabilities:
 
 
 
 
 
 
 
Aluminum -
 
 
 
 
 
 
 
Call option sales contracts
$

 
$
(0.5
)
 
$

 
$
(0.5
)
Fixed priced purchase contracts

 
(5.7
)
 

 
(5.7
)
Fixed priced sales contracts

 
(0.4
)
 

 
(0.4
)
Natural Gas -
 
 
 
 
 
 
 
Call option purchase contracts

 
(0.1
)
 

 
(0.1
)
Put option sales contracts

 
(4.0
)
 

 
(4.0
)
Fixed priced purchase contracts

 
(0.9
)
 

 
(0.9
)
Electricity -
 
 
 
 
 
 
 
Fixed priced purchase contracts

 
(1.2
)
 

 
(1.2
)
Hedges Relating to the Notes -
 
 
 
 
 
 
 
Bifurcated Conversion Feature

 
(47.6
)
 

 
(47.6
)
Total
$

 
$
(60.4
)
 
$

 
$
(60.4
)
The following table presents the Company’s derivative assets and liabilities, classified under the appropriate level of the fair value hierarchy, as of December 31, 2010:
 
Level 1
 
Level 2
 
Level 3
 
Total
Derivative assets:
 
 
 
 
 
 
 
Aluminum -
 
 
 
 
 
 
 
Call option purchase contracts
$

 
$
9.3

 
$

 
$
9.3

Put option purchase contracts

 
0.1

 

 
0.1

Fixed priced purchase contracts

 
18.2

 

 
18.2

Midwest premium swap contracts

 

 
0.2

 
0.2

Natural Gas -
 
 
 
 
 
 
 
Call option purchase contracts

 
0.3

 

 
0.3

Put option purchase contracts

 
2.5

 

 
2.5

Fixed priced purchase contracts

 
0.1

 

 
0.1

Hedges Relating to the Notes -
 
 
 
 
 
 
 
Call Options

 
48.4

 

 
48.4

Total
$

 
$
78.9

 
$
0.2

 
$
79.1

Derivative liabilities:
 
 
 
 
 
 
 
Aluminum -
 
 
 
 
 
 
 
Call option sales contracts
$

 
$
(9.3
)
 
$

 
$
(9.3
)
Put option sales contracts

 
(0.1
)
 

 
(0.1
)
Fixed priced purchase contracts

 
(0.4
)
 

 
(0.4
)
Fixed priced sales contracts

 
(3.4
)
 

 
(3.4
)
Midwest premium swap contracts

 

 
(0.1
)
 
(0.1
)
Natural Gas -
 
 
 
 
 
 
 
Put option sales contracts

 
(4.6
)
 

 
(4.6
)
Fixed priced purchase contracts

 
(0.5
)
 

 
(0.5
)
Hedges Relating to the Notes -
 
 
 
 
 
 
 
Bifurcated Conversion Feature

 
(60.0
)
 

 
(60.0
)
Total
$

 
$
(78.3
)
 
$
(0.1
)
 
$
(78.4
)
Reconciliation of activity for financial instruments classified as Level 3
The following table presents a reconciliation of activity for the Midwest premium derivative contracts on a net basis:
 
Level 3
Balance at December 31, 2010
$
0.1

Total realized/unrealized gains included in:
 
Cost of goods sold excluding depreciation expense
1.5

Transactions involving Level 3 derivative contracts:
 
Purchases
0.2

Sales

Issuances

Settlements
(1.1
)
Transactions involving Level 3 derivatives — net
(0.9
)
Transfers in and (or) out of Level 3 valuation hierarchy

Balance at September 30, 2011
$
0.7

 
 
Total gains included in earnings attributable to the change in unrealized gains/losses relating to derivative contracts held at September 30, 2011:
$
0.5