Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2012

Pension and Other Postretirement Benefit Expense [Abstract]

Schedule of Defined Benefit Plans Disclosures

The following tables provide the components of the net periodic pension and other post-retirement benefit costs for the three and nine months ended September 30, 2012 and 2011 (in millions):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
PENSION BENEFITS
Interest cost	$	0.6		$	0.5		$	1.4		$	1.3
Expected return on plan assets	(0.6		)	(0.5		)	(1.6		)	(1.5		)
Amortization of net actuarial loss	0.1			—			0.3			0.2
Net periodic benefit cost	$	0.1		$	—		$	0.1		$	—

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
OTHER POST-RETIREMENT BENEFITS
Interest cost	$	0.1		$	0.1		$	0.2		$	0.2
Amortization of prior service credit	(0.1		)	(0.1		)	(0.1		)	(0.1		)
Net periodic other benefit cost	$	—		$	—		$	0.1		$	0.1