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Employee Retirement Plans (Tables)
 12 Months Ended
Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of Net Benefit Costs
The components of the net periodic pension and postretirement benefit expense (income) for the years ended December 31, 2014, 2013 and 2012 are as follows:

 
Pension Benefits
 
Postretirement Benefits
 
2014
 
2013
 
2012
 
2014
 
2013
 
2012
Service cost
$
—

 
$
—

 
$
0.3

 
$
—

 
$
—

 
$
0.2

Interest cost
29.3

 
28.2

 
31.2

 
0.1

 
0.1

 
0.7

Expected return on plan assets
(34.4
)
 
(30.2
)
 
(27.2
)
 
—

 
—

 
—

Amortization of prior service credit
—

 
—

 
—

 
(5.8
)
 
(5.7
)
 
(3.4
)
Amortization of actuarial (gain) / loss
—

 
0.3

 
—

 
(0.3
)
 
—

 
(0.1
)
Net periodic benefit cost (income)
(5.1
)
 
(1.7
)
 
4.3

 
(6.0
)
 
(5.6
)
 
(2.6
)
Curtailment/settlement (gain) / loss
—

 
(2.1
)
 
0.1

 
—

 
—

 
(12.8
)
Termination (gain) loss
—

 
—

 
—

 
(4.9
)
 
—

 
—

Total expense (income)
$
(5.1
)
 
$
(3.8
)
 
$
4.4

 
$
(10.9
)
 
$
(5.6
)
 
$
(15.4
)
Schedule of Defined Benefit Plans Disclosures
The following provides a reconciliation of the projected benefit obligation, fair value of plan assets and the funded status of the pension and postretirement plans as of December 31, 2014 and 2013:

 
Pension Benefits
 
Postretirement Benefits
 
2014
 
2013
 
2014
 
2013
Changes in benefit obligation
 
 
 
 
 
 
 
Projected benefit obligation, beginning of year
$
635.2

 
$
744.0

 
$
4.0

 
$
5.4

Service cost
—

 
—

 
—

 
—

Interest cost
29.3

 
28.2

 
0.1

 
0.1

Plan participants contributions
—

 
—

 
0.1

 
0.2

Plan termination
—

 
—

 
(3.7
)
 
—

Actuarial (gain) / loss
104.1

 
(78.5
)
 
—

 
(1.0
)
Benefits paid
(57.3
)
 
(58.5
)
 
(0.5
)
 
(0.7
)
Projected benefit obligation, end of year
$
711.3

 
$
635.2

 
$
—

 
$
4.0

 
 
 
 
 
 
 
 
Changes in plan assets
 
 
 
 
 
 
 
Fair value of plan assets, beginning of year
$
525.2

 
$
458.9

 
$
—

 
$
—

Actual return on plan assets
44.4

 
84.3

 
—

 
—

Employer contributions
36.3

 
40.5

 
0.4

 
0.5

Plan participants contributions
—

 
—

 
0.1

 
0.2

Benefits paid
(57.3
)
 
(58.5
)
 
(0.5
)
 
(0.7
)
Fair value of plan assets, end of year
$
548.6

 
$
525.2

 
$
—

 
$
—

 
 
 
 
 
 
 
 
Funded status
$
(162.7
)
 
$
(110.0
)
 
$
—

 
$
(4.0
)
Schedule of Amounts Recognized in Balance Sheet
Amounts recognized on the consolidated balance sheets as of December 31, 2014 and 2013 are as follows:

 
Pension Benefits
 
Postretirement Benefits
 
2014
 
2013
 
2014
 
2013
Current liabilities
$
(1.2
)
 
$
(4.0
)
 
$
—

 
$
(0.8
)
Noncurrent liabilities
(161.5
)
 
(106.0
)
 
—

 
(3.2
)
Total amount recognized
$
(162.7
)
 
$
(110.0
)
 
$
—

 
$
(4.0
)
Schedule of Defined Benefit Plan, Reconciliation of Accumulated Other Comprehensive Income (Loss) Prior to Deferred Tax Effects
The following table provides a reconciliation of the Company's accumulated other comprehensive income (loss) prior to any deferred tax effects at December 31, 2014 and 2013 are as follows:

 
Pension Benefits
 
Postretirement Benefits
 
Actuarial Gain / (Loss), net
 
Actuarial Gain / (Loss), net
 
Prior Service Credit/(Cost)
 
Total
Balance at January 1, 2013
$
(80.2
)
 
$
(12.6
)
 
$
28.3

 
$
15.7

Amount arising during the period
132.6

 
1.0

 
—

 
1.0

Amortization included in net earnings (loss)
0.3

 
—

 
(5.7
)
 
(5.7
)
Plan curtailments/settlements included in net earnings (loss)
(2.1
)
 
—

 
—

 
—

Balance at December 31, 2013
$
50.6

 
$
(11.6
)
 
$
22.6

 
$
11.0

Amount arising during the period
(95.2
)
 
—

 
—

 
—

Amortization included in net earnings (loss)
—

 
(0.3
)
 
(5.8
)
 
(6.1
)
Impact of plan termination included in net earnings (loss)
—

 
11.9

 
(16.8
)
 
(4.9
)
Balance at December 31, 2014
$
(44.6
)
 
$
—

 
$
—

 
$
—
Schedule of Assumptions Used
The weighted-average assumptions, separately for the pension and postretirement benefit plans, used to determine net periodic benefit costs for the years ended December 31, 2014, 2013 and 2012 were as follows:

 
Pension Benefits
 
Postretirement Benefits
 
2014
 
2013
 
2012
 
2014
 
2013
 
2012
Discount rate (beginning of year rate)
4.8
%
 
3.9
%
 
4.7
%
 
3.6
%
 
2.8
%
 
3.7
%
Expected long-term return on plan assets
6.5
%
 
6.5
%
 
6.5
%
 
N/A

 
N/A

 
N/A



The weighted-average assumptions, separately for the pension and postretirement benefit plans, used to determine benefit obligations at December 31, 2014 and 2013 were as follows:

 
Pension Benefits
 
Postretirement Benefits
 
2014
 
2013
 
2014
 
2013
Discount rate (end of year rate)
3.9
%
 
4.8
%
 
N/A
 
3.6
%
Schedule of Expected Benefit Payments
An estimate of the Plans' future benefit payments to be made from funded qualified plans and unfunded non-qualified plans to plan participants are as follows:
 
Pension Benefits
2015
$
39.2

2016
38.4

2017
38.8

2018
39.4

2019
38.9

2020 – 2024
203.3

Thereafter
313.3

Total
$
711.3
Schedule of Allocation of Plan Assets
The fair values of the Company's pension plan assets at December 31, 2014 and 2013 by asset category are as follows:

 
 
December 31, 2014
 
December 31, 2013
Asset Category
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
Cash and cash equivalents
 
$
1.5

 
$
1.5

 
$
—

 
$
—

 
$
0.3

 
$
0.3

 
$
—

 
$
—

Debt securities
 
187.6

 
—

 
187.6

 
—

 
171.5

 
—

 
171.5

 
—

Equity securities
 
359.5

 
105.4

 
254.1

 
—

 
353.4

 
122.9

 
230.5

 
—

Total
 
$
548.6

 
$
106.9

 
$
441.7

 
$
—

 
$
525.2

 
$
123.2

 
$
402.0

 
$
—