Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2013

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 of our Pension Plans for the three months ended March 31, 2013 and 2012 (in millions):

	Three Months Ended
	March 31,
	2013			2012
PENSION BENEFITS
Interest cost	$	0.4		$	0.4
Expected return on plan assets	(0.6		)	(0.5		)
Amortization of net actuarial loss	0.1			0.1
Net periodic benefit cost	$	(0.1	)	$	—

	Three Months Ended
	March 31,
	2013		2012
OTHER POST-RETIREMENT BENEFITS
Interest cost	$	—	$	0.1
Amortization of prior service credit	—		—
Net periodic other benefit cost	$	—	$	0.1