FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2012

FAIR VALUE MEASUREMENTS [Abstract]

Table of financial instruments measured at fair value

The following table summarizes the financial assets and liabilities measured at fair value in the condensed balance sheets:

	Fair Value Measurements
Balance at March 31, 2012	Level 1			Level 2			Level 3			Total
Assets	($ in millions)
Interest rate swaps		$	-		$	11.7		$	-	$	11.7
Liabilities
Interest rate swaps		$	-		$	12.0		$	-	$	12.0
Commodity forward contracts			0.2			4.0			-		4.2
Earn out			-			-			33.1		33.1
Balance at December 31, 2011
Assets
Interest rate swaps		$	-		$	13.8		$	-	$	13.8
Liabilities
Interest rate swaps		$	-		$	13.7		$	-	$	13.7
Commodity forward contracts			2.5			7.7			-		10.2
Earn out			-			-			49.0		49.0
Balance at March 31, 2011
Assets
Interest rate swaps		$	-		$	6.8		$	-	$	6.8
Commodity forward contracts			5.9			7.9			-		13.8
Liabilities
Interest rate swaps		$	-		$	7.0		$	-	$	7.0
Earn out			-			-			42.5		42.5

Activity summary of financial instruments measure at fair value using level 3 inputs

The following table summarizes the activity for our financial instruments measured at fair value using Level 3 inputs:

	March 31,
	2012			2011
	($ in millions)
Balance at beginning of year	$	(49.0	)	$	-
Purchases, sales and settlements		18.5			(42.3	)
Unrealized losses included in other (expense) income		(2.6	)		(0.2	)
Balance at end of period	$	(33.1	)	$	(42.5	)

Fair value of debt table

The following table summarizes the fair value measurements of debt and the actual debt recorded on our condensed balance sheets:

	Fair Value - Debt
	Level 2		Level 3		Total		Debt recorded on balance sheet
	($ in millions)
Balance at March 31, 2012	$	403.6	$	161.0	$	564.6	$	535.6
Balance at December 31, 2011		391.4		160.9		552.3		536.4
Balance at March 31, 2011		481.1		124.7		605.8		581.2