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Retirement and Postretirement Plans (Tables) | 12 Months Ended
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Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract] |
Schedule of changes in projected benefit obligations and fair value of plan assets and funded status of plan assets | The following tables set forth the obligations and funded status, assumptions, plan assets and cash flows associated with the Plans as of December 31, 2014 and 2013:
|  | Pension Benefits December 31,
Millions |  | 2014 |  | 2013
Change in projected benefit obligation: |  |  |  |  |  |
Projected benefit obligation at beginning of year |  | $ | 102.9 |  |  | $ | 119.5 |
Service cost |  | .6 |  |  | .8 |
Interest cost |  | 4.7 |  |  | 4.2 |
Special termination benefits expense |  | .3 |  |  | .3 |
Assumption changes |  | 17.5 |  |  | (13.0 | )
Actuarial loss (gain) |  | 1.1 |  |  | (.5 | )
Benefits and expenses paid with plan assets |  | (5.2 | ) |  | (6.2 | )
Benefits paid directly by OneBeacon |  | (2.2 | ) |  | (2.2 | )
Projected benefit obligation at end of year |  | $ | 119.7 |  |  | $ | 102.9 |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 142.8 |  |  | $ | 124.7 |
Actual return on plan assets |  | 8.4 |  |  | 24.3 |
Benefits and expenses paid |  | (5.2 | ) |  | (6.2 | )
Fair value of plan assets at end of year |  | $ | 146.0 |  |  | $ | 142.8 |
Funded status at end of year |  | $ | 26.3 |  |  | $ | 39.9 |
Schedule of amounts recorded in financial statements | Amounts recognized in the financial statements as of December 31, 2014 and 2013 consist of:
|  | December 31,
Millions |  | 2014 |  | 2013
Net assets of the Qualified Plan recorded in other assets |  | $ | 53.4 |  |  | $ | 64.1 |
Net liabilities of the Non-qualified Plan recorded in other liabilities |  | (27.1 | ) |  | (24.2 | )
Net amount accrued in the financial statements |  | $ | 26.3 |  |  | $ | 39.9 |
Information for the Non-qualified Plan, which has accumulated benefit obligations in excess of plan assets | Information for the Non-qualified Plan, which had accumulated benefit obligations in excess of plan assets, was as follows:
|  | December 31,
Millions |  | 2014 |  | 2013
Projected benefit obligation |  | $ | 27.1 |  |  | $ | 24.2 |
Accumulated benefit obligation |  | $ | 27.1 |  |  | $ | 24.2 |
Fair value of plan assets |  | $ | — |  |  | $ | — |
Information for the Qualified Plan, which had accumulated benefit obligations less than plan assets | Information for the Qualified Plan, which had accumulated benefit obligations less than plan assets, was as follows:
|  | December 31,
Millions |  | 2014 |  | 2013
Projected benefit obligation |  | $ | 92.6 |  |  | $ | 78.7 |
Accumulated benefit obligation |  | $ | 92.6 |  |  | $ | 78.7 |
Fair value of plan net assets |  | $ | 146.0 |  |  | $ | 142.8 |
Schedule of amounts recognized in accumulated other comprehensive income (loss) on a pre-tax basis and before noncontrolling interest | The amounts recognized in accumulated other comprehensive income (loss) on a pre-tax basis and before non-controlling interest for the years ended December 31, 2014 and 2013 were as follows:
|  | December 31,
Millions |  | 2014 |  | 2013
Accumulated other comprehensive income (loss) beginning balance |  | $ | 10.5 |  |  | $ | (21.2 | )
Increase (decrease) in accumulated other comprehensive income (loss): |  |  |  |  |  |
Amortization of net actuarial losses recognized during the year |  | .3 |  |  | .9 |
Net actuarial (losses) gains occurring during the year(1) |  | (18.8 | ) |  | 30.8 |
Accumulated other comprehensive (loss) income ending balance |  | $ | (8.0 | ) |  | $ | 10.5 |
(1) | Net actuarial gains (losses) resulted from investment returns and demographic experience different than assumed, as well as changes in assumptions in estimating the projected benefit obligation in the years ended December 31, 2014 and 2013.
Schedule of components of net periodic benefit cost (income) | The components of net periodic benefit (income) cost for the years ended December 31, 2014, 2013 and 2012 were as follows:
|  | Year Ended December 31,
Millions |  | 2014 |  | 2013 |  | 2012
Service cost |  | $ | .6 |  |  | $ | .8 |  |  | $ | .7 |
Interest cost |  | 4.7 |  |  | 4.2 |  |  | 4.7 |
Expected return on plan assets |  | (8.5 | ) |  | (7.1 | ) |  | (6.9 | )
Amortization of unrecognized loss |  | .3 |  |  | .9 |  |  | .8 |
Net periodic pension income before settlements, curtailments and special termination benefits |  | (2.9 | ) |  | (1.2 | ) |  | (.7 | )
Settlement loss |  | — |  |  | — |  |  | .6 |
Special termination benefits expense(1) |  | .3 |  |  | .3 |  |  | .6 |
Total net periodic (income) benefit cost |  | $ | (2.6 | ) |  | $ | (.9 | ) |  | $ | .5 |
(1) | Special termination benefits represent additional payments made from the Qualified Plan to certain vested participants when their employment was terminated due to a reduction in force.
Schedule of fair value of the Plan assets and their related inputs | The fair value of the Qualified Plan’s assets and their related inputs as of December 31, 2014 and 2013 by asset category were as follows:
|  | December 31, 2014 |  | December 31, 2013
Millions |  | Fair Value |  | Level 1 Inputs |  | Level 2 Inputs |  | Level 3 Inputs |  | Fair Value |  | Level 1 Inputs |  | Level 2 Inputs |  | Level 3 Inputs
Fixed maturity investments |  | $ | 24.2 |  |  | $ | — |  |  | $ | 24.2 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Common equity securities |  | 101.0 |  |  | 101.0 |  |  | — |  |  | — |  |  | 103.3 |  |  | 103.3 |  |  | — |  |  | — |
Convertible fixed maturity investments |  | 12.8 |  |  | — |  |  | 12.8 |  |  | — |  |  | 29.9 |  |  | — |  |  | 29.9 |  |  | — |
Cash and short-term investments |  | 5.2 |  |  | 4.8 |  |  | .4 |  |  | — |  |  | 8.9 |  |  | 8.8 |  |  | .1 |  |  | — |
Total |  | $ | 143.2 |  |  | $ | 105.8 |  |  | $ | 37.4 |  |  | $ | — |  |  | $ | 142.1 |  |  | $ | 112.1 |  |  | $ | 30.0 |  |  | $ | — |
There were no transfers between Levels 1, 2 or 3 during the years ended December 31, 2014 and 2013. The Qualified Plan’s asset allocations as of December 31, 2014 and 2013, by asset category were as follows:
|  | Plan Assets at December 31,
Asset Category |  | 2014 |  | 2013
Fixed maturity investments |  | 16.9 | % |  | — | %
Common equity securities |  | 70.6 |  |  | 72.7 |
Convertible fixed maturity investments |  | 8.9 |  |  | 21.1 |
Cash and short-term investments |  | 3.6 |  |  | 6.2 |
Total |  | 100.0 | % |  | 100.0 | %
Schedule of expected future benefit payments | The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:
Millions |  | Expected Benefit Payments
2015 |  | $ | 4.9 |
2016 |  | 5.3 |
2017 |  | 5.6 |
2018 |  | 5.9 |
2019 |  | 6.1 |
2020-2024 |  | 34.4 |

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + 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 (d)(5) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + 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 (h) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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