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Postretirement Benefits (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Defined contribution plan expense | $ 34.2 |  | $ 30.9 |  | $ 25.0 |
Contributions to multiemployer plans | 0.6 |  | 0.5 |  | 0.3 |
Reductions of benefit obligations due to negative plan amendments | 0.2 |  | 6.1 |  |  |
Change in Benefit Obligations [Roll Forward] |  |  |  |  |  |
Plan amendments | (0.2) |  | (6.1) |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at previous December 31 | 795.7 | [1] |  |  |  |
Fair value of plan assets at December 31 | 898.6 | [2] | 795.7 | [1] |  |
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] |  |  |  |  |  |
Projected benefit obligation | 1,388.0 |  | 1,319.3 |  |  |
Accumulated benefit obligation | 1,388.0 |  | 1,319.3 |  |  |
Fair value of plan assets | 898.6 |  | 795.7 |  |  |
Funded status | 65.00% |  | 60.00% |  |  |
Unfunded, nonqualified pension plan projected and accumulated benefit obligations included in funded status of the Company's pension plans | 42.3 |  | 43.1 |  |  |
Net Actuarial Losses [Abstract] |  |  |  |  |  |
Percentage of benefit obligation or market value of assets, over which actuarial gains and losses are subject to amortization (in hundredths) | 10.00% |  |  |  |  |
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] |  |  |  |  |  |
Health care cost trend rate for next year | 7.50% |  | 7.60% |  |  |
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) | 4.50% |  | 4.50% |  |  |
Year rate reaches the ultimate trend rate | 2028 |  | 2028 |  |  |
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract] |  |  |  |  |  |
Effect on total service and interest cost, increase | 0 |  |  |  |  |
Effect on accumulated postretirement benefit obligation, increase | 0.5 |  |  |  |  |
Effect on total service and interest cost, decrease | 0 |  |  |  |  |
Effect on accumulated postretirement benefit obligation, decrease | (0.5) |  |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract] |  |  |  |  |  |
Total | 100.00% |  | 100.00% |  |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Total | 100.00% |  |  |  |  |
Fair value of plan assets | 898.6 | [2] | 795.7 | [1] |  |
Expected Benefit Payments [Abstract] |  |  |  |  |  |
Amortization of prior service costs (credits) for former/inactive employees | 1.3 |  | 1.3 |  |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 102.8 | [2] | 75.7 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 102.8 | [2] | 75.7 | [1] |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 794.7 | [2] | 724.4 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 794.7 | [2] | 724.4 | [1] |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2] | 0 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2] | 0 | [1] |  |
Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 897.5 | [2] | 800.1 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 897.5 | [2] | 800.1 | [1] |  |
Short-term Investments [Member] |  |  |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract] |  |  |  |  |  |
Total | 7.00% |  | 4.00% |  |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Total | 0.00% |  |  |  |  |
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0.1 | [2] | 0.1 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0.1 | [2] | 0.1 | [1] |  |
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 61.9 | [2] | 28.8 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 61.9 | [2] | 28.8 | [1] |  |
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2] | 0 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2] | 0 | [1] |  |
Short-term Investments [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 62.0 | [2] | 28.9 | [1] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 62.0 | [2] | 28.9 | [1] |  |
United States Equity Securities [Member] |  |  |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract] |  |  |  |  |  |
Total | 37.00% |  | 46.00% |  |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Total | 38.00% |  |  |  |  |
United States Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[3] | 0 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[3] | 0 | [1],[4] |  |
United States Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 336.7 | [2],[3] | 367.2 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 336.7 | [2],[3] | 367.2 | [1],[4] |  |
United States Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[3] | 0 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[3] | 0 | [1],[4] |  |
United States Equity Securities [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 336.7 | [2],[3] | 367.2 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 336.7 | [2],[3] | 367.2 | [1],[4] |  |
International Equity Securities [Member] |  |  |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract] |  |  |  |  |  |
Total | 7.00% |  | 8.00% |  |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Total | 7.00% |  |  |  |  |
International Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[3] | 0 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[3] | 0 | [1],[4] |  |
International Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 60.6 | [2],[3] | 65.4 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 60.6 | [2],[3] | 65.4 | [1],[4] |  |
International Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[3] | 0 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[3] | 0 | [1],[4] |  |
International Equity Securities [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 60.6 | [2],[3] | 65.4 | [1],[4] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 60.6 | [2],[3] | 65.4 | [1],[4] |  |
Fixed Income Securities [Member] |  |  |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract] |  |  |  |  |  |
Total | 49.00% |  | 42.00% |  |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Total | 55.00% |  |  |  |  |
Government Fixed-Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 102.7 | [2],[5] | 75.6 | [1],[5] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 102.7 | [2],[5] | 75.6 | [1],[5] |  |
Government Fixed-Income Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 43.8 | [2],[5] | 38.0 | [1],[5] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 43.8 | [2],[5] | 38.0 | [1],[5] |  |
Government Fixed-Income Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[5] | 0 | [1],[5] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[5] | 0 | [1],[5] |  |
Government Fixed-Income Securities [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 146.5 | [2],[5] | 113.6 | [1],[5] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 146.5 | [2],[5] | 113.6 | [1],[5] |  |
Corporate Fixed-Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[6] | 0 | [1],[6] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[6] | 0 | [1],[6] |  |
Corporate Fixed-Income Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 117.5 | [2],[6] | 98.5 | [1],[6] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 117.5 | [2],[6] | 98.5 | [1],[6] |  |
Corporate Fixed-Income Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[6] | 0 | [1],[6] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[6] | 0 | [1],[6] |  |
Corporate Fixed-Income Securities [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 117.5 | [2],[6] | 98.5 | [1],[6] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 117.5 | [2],[6] | 98.5 | [1],[6] |  |
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[7] | 0 | [1],[7] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[7] | 0 | [1],[7] |  |
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 174.2 | [2],[7] | 126.5 | [1],[7] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 174.2 | [2],[7] | 126.5 | [1],[7] |  |
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 0 | [2],[7] | 0 | [1],[7] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 | [2],[7] | 0 | [1],[7] |  |
Commingled Funds [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 174.2 | [2],[7] | 126.5 | [1],[7] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 174.2 | [2],[7] | 126.5 | [1],[7] |  |
Other Pension Plan Assets [Member] | Fair Value [Member] |  |  |  |  |  |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at December 31 | 1.1 | [2],[8] | (4.4) | [1],[8] |  |
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 1.1 | [2],[8] | (4.4) | [1],[8] |  |
Pension Plans [Member] |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Reductions of benefit obligations due to negative plan amendments | 0 |  | 0 |  |  |
Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Service cost | 0.2 |  | 1.1 |  | 1.1 |
Interest cost | 57.7 |  | 62.4 |  | 64.8 |
Expected return on plan assets | (55.2) |  | (53.3) |  | (49.5) |
Amortization of prior service costs (credits) | 0 |  | 0.4 |  | 0.4 |
Amortization of net actuarial losses | 21.9 |  | 21.3 |  | 22.2 |
Curtailment loss | 0.1 |  | 0.3 |  | 0.1 |
Net pension and other benefit costs | 24.7 |  | 32.2 |  | 39.1 |
Change in Benefit Obligations [Roll Forward] |  |  |  |  |  |
Benefit obligation at previous December 31 | 1,319.3 |  | 1,214.2 |  |  |
Service cost | 0.2 |  | 1.1 |  | 1.1 |
Interest cost | 57.7 |  | 62.4 |  | 64.8 |
Participant contributions | 0 |  | 0 |  |  |
Actuarial losses (gains) | 84.5 |  | 113.1 |  |  |
Benefit payments | (73.7) |  | (71.5) |  |  |
Plan amendments | 0 |  | 0 |  |  |
Benefit obligation at December 31 | 1,388.0 |  | 1,319.3 |  | 1,214.2 |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at previous December 31 | 795.7 |  | 740.4 |  |  |
Actual return on plan assets | 107.6 |  | 47.2 |  |  |
Employer contributions | 69.0 |  | 79.6 |  |  |
Participant contributions | 0 |  | 0 |  |  |
Benefit payments | (73.7) |  | (71.5) |  |  |
Fair value of plan assets at December 31 | 898.6 |  | 795.7 |  | 740.4 |
Funded status at December 31 | (489.4) |  | (523.6) |  |  |
Amounts Recognized in Consolidated Balance Sheet [Abstract] |  |  |  |  |  |
Accrued expenses | 4.0 |  | 4.0 |  |  |
Postretirement benefit liabilities | 485.4 |  | 519.6 |  |  |
Net amount recognized | 489.4 |  | 523.6 |  |  |
Prior Service Costs (Credits) [Abstract] |  |  |  |  |  |
Beginning balance | 0.1 |  | 0.8 |  |  |
Prior service costs (credits) arising during the period | 0 |  | 0 |  |  |
Amount recognized as component of net benefit costs | (0.1) |  | (0.7) |  |  |
Ending balance | 0 |  | 0.1 |  | 0.8 |
Net Actuarial Losses [Abstract] |  |  |  |  |  |
Beginning balance | 591.9 |  | 494.1 |  |  |
Actuarial losses (gains) arising during the period | 32.1 |  | 119.1 |  |  |
Amount recognized as component of net benefit costs | (21.9) |  | (21.3) |  |  |
Ending balance | 602.1 |  | 591.9 |  | 494.1 |
Total | 602.1 |  | 592.0 |  |  |
Estimated pretax prior service (cost) credit in accumulated other comprehensive income (loss) expected to be recognized over the next year | 0 |  |  |  |  |
Estimated pretax net actuarial loss in accumulated other comprehensive income (loss) expected to be recognized over the next year | 21.4 |  |  |  |  |
Defined Benefit Plan, Weighted average assumptions used to determine pension and other postretirement benefit obligations [Abstract] |  |  |  |  |  |
Discount rate | 4.00% |  | 4.50% |  |  |
Rate of compensation increase | 0.00% | [9] | 0.00% | [9] |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Discount rate (in hundredths) | 4.50% | [10] |  |  | 5.85% | [10]
Long-term rate of return on plan assets (in hundredths) | 7.00% | [11] | 7.25% | [11] | 7.50% | [11]
Rate of compensation increase (in hundredths) | 0.00% | [11] | 0.00% | [11] | 0.00% | [11]
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 898.6 |  | 795.7 |  | 740.4 |
Expected Benefit Payments [Abstract] |  |  |  |  |  |
Company contributions expected to be made in 2013 | 54.0 | [12] |  |  |  |
2013 | 78.5 |  |  |  |  |
2014 | 80.1 |  |  |  |  |
2015 | 81.5 |  |  |  |  |
2016 | 82.4 |  |  |  |  |
2017 | 83.3 |  |  |  |  |
2018-2022 | 418.9 |  |  |  |  |
Defined Benefit Plan Estimated Future Employer Required Contributions In Next Fiscal Year Qualified Plan | 50.0 |  |  |  |  |
Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year Unfunded Plan | 4.0 |  |  |  |  |
Pension Plans [Member] | Minimum [Member] |  |  |  |  |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Discount rate (in hundredths) |  |  | 5.20% | [10] |  |
Pension Plans [Member] | Maximum [Member] |  |  |  |  |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Discount rate (in hundredths) |  |  | 5.30% | [10] |  |
Other Postretirement Benefit Plans [Member] |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Reductions of benefit obligations due to negative plan amendments | 0.2 |  | 6.1 |  |  |
Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Service cost | 0 |  | 0.2 |  | 0.4 |
Interest cost | 2.4 |  | 3.2 |  | 3.9 |
Expected return on plan assets | 0 |  | 0 |  | 0 |
Amortization of prior service costs (credits) | (6.3) |  | (5.2) |  | (3.9) |
Amortization of net actuarial losses | 0.7 |  | 1.0 |  | 0 |
Curtailment loss | 0 |  | 0 |  | 0 |
Net pension and other benefit costs | (3.2) |  | (0.8) |  | 0.4 |
Change in Benefit Obligations [Roll Forward] |  |  |  |  |  |
Benefit obligation at previous December 31 | 69.9 |  | 77.8 |  |  |
Service cost | 0 |  | 0.2 |  | 0.4 |
Interest cost | 2.4 |  | 3.2 |  | 3.9 |
Participant contributions | 1.3 |  | 1.7 |  |  |
Actuarial losses (gains) | (5.5) |  | 2.8 |  |  |
Benefit payments | (9.9) |  | (9.7) |  |  |
Plan amendments | (0.2) |  | (6.1) |  |  |
Benefit obligation at December 31 | 58.0 |  | 69.9 |  | 77.8 |
Change in Plan Assets [Roll Forward] |  |  |  |  |  |
Fair value of plan assets at previous December 31 | 0 |  | 0 |  |  |
Actual return on plan assets | 0 |  | 0 |  |  |
Employer contributions | 8.6 |  | 8.0 |  |  |
Participant contributions | 1.3 |  | 1.7 |  |  |
Benefit payments | (9.9) |  | (9.7) |  |  |
Fair value of plan assets at December 31 | 0 |  | 0 |  | 0 |
Funded status at December 31 | (58.0) |  | (69.9) |  |  |
Amounts Recognized in Consolidated Balance Sheet [Abstract] |  |  |  |  |  |
Accrued expenses | 7.1 |  | 9.2 |  |  |
Postretirement benefit liabilities | 50.9 |  | 60.7 |  |  |
Net amount recognized | 58.0 |  | 69.9 |  |  |
Prior Service Costs (Credits) [Abstract] |  |  |  |  |  |
Beginning balance | (24.3) |  | (23.4) |  |  |
Prior service costs (credits) arising during the period | (0.2) |  | (6.1) |  |  |
Amount recognized as component of net benefit costs | 6.3 |  | 5.2 |  |  |
Ending balance | (18.2) |  | (24.3) |  | (23.4) |
Net Actuarial Losses [Abstract] |  |  |  |  |  |
Beginning balance | 15.0 |  | 13.2 |  |  |
Actuarial losses (gains) arising during the period | (5.5) |  | 2.8 |  |  |
Amount recognized as component of net benefit costs | (0.7) |  | (1.0) |  |  |
Ending balance | 8.8 |  | 15.0 |  | 13.2 |
Total | (9.4) |  | (9.3) |  |  |
Estimated pretax prior service (cost) credit in accumulated other comprehensive income (loss) expected to be recognized over the next year | 5.7 |  |  |  |  |
Estimated pretax net actuarial loss in accumulated other comprehensive income (loss) expected to be recognized over the next year | 1.3 |  |  |  |  |
Defined Benefit Plan, Weighted average assumptions used to determine pension and other postretirement benefit obligations [Abstract] |  |  |  |  |  |
Discount rate | 3.60% |  | 4.20% |  |  |
Rate of compensation increase | 0.00% | [9] | 0.00% | [9] |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Discount rate (in hundredths) | 4.20% | [10] |  |  | 5.45% | [10]
Defined Benefit Plan, Assets, Target Allocations [Abstract] |  |  |  |  |  |
Fair value of plan assets | 0 |  | 0 |  | 0 |
Expected Benefit Payments [Abstract] |  |  |  |  |  |
Company contributions expected to be made in 2013 | 7.1 | [12] |  |  |  |
2013 | 7.1 |  |  |  |  |
2014 | 6.0 |  |  |  |  |
2015 | 5.4 |  |  |  |  |
2016 | 4.9 |  |  |  |  |
2017 | 4.6 |  |  |  |  |
2018-2022 | $ 17.6 |  |  |  |  |
Other Postretirement Benefit Plans [Member] | Minimum [Member] |  |  |  |  |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Discount rate (in hundredths) |  |  | 4.65% | [10] |  |
Other Postretirement Benefit Plans [Member] | Maximum [Member] |  |  |  |  |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Discount rate (in hundredths) |  |  | 4.80% | [10] |  |
[1] | See Note 6 – Fair Value Measurements for a description of levels within the fair value hierarchy. The level in the fair value hierarchy within which the fair value measurement is classified is determined based on the lowest level input that is significant to the fair value measurement in its entirety. A description of the valuation methodologies is provided following these tables. There were no significant transfers in and/or out of Level 1, Level 2 and Level 3 in 2011.
[2] | See Note 6 – Fair Value Measurements for a description of levels within the fair value hierarchy. The level in the fair value hierarchy within which the fair value measurement is classified is determined based on the lowest level input that is significant to the fair value measurement in its entirety. A description of the valuation methodologies is provided following these tables. There were no transfers in and/or out of Level 1, Level 2 and Level 3 in 2012.
[3] | The equity assets are invested in two indexed funds based on the Russell 3000 Index (U.S.) and the MSCI EAFE Equity Index (International). The Trust did not directly own any of the Company's common stock as of December 31, 2012.
[4] | The majority of equity assets are invested in two indexed funds based on the Russell 3000 Index (U.S.) and the MSCI EAFE Equity Index (International). The Trust did not directly own any of the Company's common stock as of December 31, 2011.
[5] | Government securities are comprised primarily of U.S. Treasury bonds and other government securities.
[6] | Corporate securities consist primarily of investment grade bonds issued by companies in diversified industries.
[7] | This class includes commingled funds that primarily invest in investment grade corporate securities and government-related securities. This class also includes investments in non-agency collateralized mortgage obligation and mortgage-backed securities, futures and options.
[8] | This class includes interest receivable and receivables/payables for securities sold/purchased.
[9] | Assumption used in determining pension benefit obligation only. The rate of compensation increase was reduced to 0.00% at December 31, 2008, as a result of the decision to freeze future benefit accruals for those plans where benefits are based on average compensation.
[10] | Range of discount rates in 2011 reflects the remeasurements of pension and postretirement benefit costs during the year due to negative plan amendments and curtailments recognized.
[11] | Assumption used in determining pension benefit cost only.
[12] | The Company currently anticipates contributing approximately $50.0 million to fund the qualified pension plans and approximately $4.0 million to cover benefit payments in the unfunded, nonqualified pension plan in 2013. Company contributions are subject to change based on market conditions or Company discretion.

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- Definition Expected rate of compensation increases (for pay-related plans). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503904 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 6 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph E1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Projected Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6522206 + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS106-2 -Paragraph 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Postretirement Benefits -URI http://asc.fasb.org/extlink&oid=6521376 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=6506267 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=6506309 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph m -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph g -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512136 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512171 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph h -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, h -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition The ultimate trend rate for health care costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph l -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Before tax amount of the income statement impact of the reclassification adjustment for actuarial gain (loss) recognized as a component of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e689-108580 + Details
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- Definition This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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