XML 21 R33.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Employee Share-Based Incentive Compensation Plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of performance share activity | The following table summarizes performance share activity for the three and six months ended June 30, 2014 and 2013 for performance shares granted under the WTM Incentive Plan:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
Millions, except share amounts |  | Target Performance Shares Outstanding |  | Accrued Expense |  | Target Performance Shares Outstanding |  | Accrued Expense |  | Target Performance Shares Outstanding |  | Accrued Expense |  | Target Performance Shares Outstanding |  | Accrued Expense
Beginning of period |  | 127,537 |  |  | $ | 42.3 |  |  | 118,976 |  |  | $ | 28.6 |  |  | 119,220 |  |  | $ | 60.2 |  |  | 119,357 |  |  | $ | 29.4 |
Shares paid or expired(1) |  | — |  |  | — |  |  | — |  |  | — |  |  | (37,130 | ) |  | (26.7 | ) |  | (47,310 | ) |  | (11.0 | )
New grants |  | — |  |  | — |  |  | — |  |  | — |  |  | 45,660 |  |  | — |  |  | 46,920 |  |  | — |
Assumed forfeitures and cancellations(2) |  | — |  |  | (.2 | ) |  | — |  |  | (.1 | ) |  | (213 | ) |  | .2 |  |  | 9 |  |  | — |
Expense recognized |  | — |  |  | 8.4 |  |  | — |  |  | 6.4 |  |  | — |  |  | 16.8 |  |  | — |  |  | 16.5 |
Ending of period |  | 127,537 |  |  | $ | 50.5 |  |  | 118,976 |  |  | $ | 34.9 |  |  | 127,537 |  |  | $ | 50.5 |  |  | 118,976 |  |  | $ | 34.9 |
(1) WTM performance share payments in 2014 for the 2011-2013 performance cycle ranged from 88% to 131.5% of target. WTM performance share payments in 2013 for the 2010-2012 performance cycle ranged from 33% to 98% of target. (2) Amounts include changes in assumed forfeitures, as required under GAAP.
Summary of performance shares outstanding and accrued expense for performance shares awarded under the WTM Incentive Plan | The following table summarizes performance shares outstanding and accrued expense for performance shares awarded under the WTM Incentive Plan at June 30, 2014 for each performance cycle:
Millions, except share amounts |  | Target Performance Shares Outstanding |  | Accrued Expense
Performance cycle: |  |  |  |  |  |
2014 – 2016 |  | 45,660 |  |  | $ | 4.6 |
2013 – 2015 |  | 47,170 |  |  | 19.2 |
2012 – 2014 |  | 37,977 |  |  | 28.0 |
Sub-total |  | 130,807 |  |  | 51.8 |
Assumed forfeitures |  | (3,270 | ) |  | (1.3 | )
Total at June 30, 2014 |  | 127,537 |  |  | $ | 50.5 |
Summary of restricted share activity | The following table summarizes the unrecognized compensation cost associated with the outstanding restricted share awards for the three and six months ended June 30, 2014 and 2013:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
Millions, except share amounts |  | Restricted Shares |  | Unamortized Issue Date Fair Value |  | Restricted Shares |  | Unamortized Issue Date Fair Value |  | Restricted Shares |  | Unamortized Issue Date Fair Value |  | Restricted Shares |  | Unamortized Issue Date Fair Value
Non-vested, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning of period |  | 81,325 |  |  | $ | 24.8 |  |  | 95,380 |  |  | $ | 28.2 |  |  | 94,130 |  |  | $ | 17.0 |  |  | 69,910 |  |  | $ | 16.8 |
Issued |  | — |  |  | — |  |  | — |  |  | — |  |  | 20,400 |  |  | 11.8 |  |  | 25,470 |  |  | 14.3 |
Vested |  | — |  |  | — |  |  | — |  |  | — |  |  | (33,205 | ) |  | — |  |  | — |  |  | — |
Forfeited |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Expense recognized |  | — |  |  | (3.9 | ) |  | — |  |  | (3.7 | ) |  | — |  |  | (7.9 | ) |  | — |  |  | (6.6 | )
Non-vested at June 30, |  | 81,325 |  |  | $ | 20.9 |  |  | 95,380 |  |  | $ | 24.5 |  |  | 81,325 |  |  | $ | 20.9 |  |  | 95,380 |  |  | $ | 24.5 |
Summary of performance share activity for OneBeacon performance shares granted under OneBeacon Incentive Plan | The following table summarizes performance share activity for the three and six months ended June 30, 2014 and 2013 for OneBeacon performance shares granted under the OneBeacon Incentive Plan:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
Millions, except share amounts |  | Target Performance Shares Outstanding |  | Accrued Expense |  | Target Performance Shares Outstanding |  | Accrued Expense |  | Target Performance Shares Outstanding |  | Accrued Expense |  | Target Performance Shares Outstanding |  | Accrued Expense
Beginning of period |  | 512,938 |  |  | $ | 3.6 |  |  | 489,867 |  |  | $ | 1.6 |  |  | 493,421 |  |  | $ | 4.0 |  |  | 563,190 |  |  | $ | 1.2 |
Shares paid or expired(1) |  | — |  |  | — |  |  | — |  |  | — |  |  | (142,138 | ) |  | (1.0 | ) |  | (238,658 | ) |  | — |
New grants |  | — |  |  | — |  |  | — |  |  | — |  |  | 165,800 |  |  | — |  |  | 179,000 |  |  | — |
Assumed forfeitures and cancellations(2) |  | — |  |  | — |  |  | — |  |  | (.1 | ) |  | (4,145 | ) |  | — |  |  | (13,665 | ) |  | (.1 | )
Expense recognized |  | — |  |  | .8 |  |  | — |  |  | .9 |  |  | — |  |  | 1.4 |  |  | — |  |  | 1.3 |
Ending of period |  | 512,938 |  |  | $ | 4.4 |  |  | 489,867 |  |  | $ | 2.4 |  |  | 512,938 |  |  | $ | 4.4 |  |  | 489,867 |  |  | $ | 2.4 |
(1) OneBeacon performance share payments in 2014 for the 2011-2013 performance cycle were at 37.1% of target. No payments were made in 2013 for the 2010-2012 OneBeacon performance cycle as the performance factor was zero. Amounts include deposits into OneBeacon’s deferred compensation plan. (2) Amounts include changes in assumed forfeitures, as required under GAAP.
Summary of OneBeacon performance shares outstanding and accrued expense for OneBeacon performance shares awarded under the OneBeacon Incentive Plan | The following table summarizes OneBeacon performance shares outstanding awarded under the OneBeacon Incentive Plan at June 30, 2014 for each performance cycle:
Millions, except share amounts |  | Target OneBeacon Performance Shares Outstanding |  | Accrued Expense
Performance cycle: |  |  |  |  |  |
2014 – 2016 |  | 165,800 |  |  | $ | .4 |
2013 – 2015 |  | 179,000 |  |  | 1.5 |
2012 – 2014 |  | 181,290 |  |  | 2.6 |
Sub-total |  | 526,090 |  |  | 4.5 |
Assumed forfeitures |  | (13,152 | ) |  | (.1 | )
Total at June 30, 2014 |  | 512,938 |  |  | $ | 4.4 |
Summary of OneBeacon restricted shares activity | The following table summarizes the unrecognized compensation cost associated with the outstanding OneBeacon restricted stock awards for the three and six months ended June 30, 2014 and 2013:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
Millions, except share amounts |  | Restricted Shares |  | Unamortized Issue Date Fair Value |  | Restricted Shares |  | Unamortized Issue Date Fair Value |  | Restricted Shares |  | Unamortized Issue Date Fair Value |  | Restricted Shares |  | Unamortized Issue Date Fair Value
Non-vested, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning of period |  | 612,500 |  |  | $ | 5.7 |  |  | 918,000 |  |  | $ | 8.8 |  |  | 915,000 |  |  | $ | 6.5 |  |  | 927,000 |  |  | $ | 9.6 |
Issued |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Vested |  | — |  |  | — |  |  | — |  |  | — |  |  | (300,000 | ) |  | — |  |  | (9,000 | ) |  | — |
Forfeited |  | — |  |  | — |  |  | — |  |  | — |  |  | (2,500 | ) |  | — |  |  | — |  |  | — |
Expense recognized |  | — |  |  | (.8 | ) |  | — |  |  | (.8 | ) |  | — |  |  | (1.6 | ) |  | — |  |  | (1.6 | )
Non-vested at June 30, |  | 612,500 |  |  | $ | 4.9 |  |  | 918,000 |  |  | $ | 8.0 |  |  | 612,500 |  |  | $ | 4.9 |  |  | 918,000 |  |  | $ | 8.0 |

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A disclosure of the changes in nonvested OneBeacon performance shares outstanding and the amount accrued for OneBeacon performance shares. + References No definition available. + Details
Name: | wtm_ScheduleOfNonvestedOneBeaconPerformanceShareActivityTableTextBlock
Namespace Prefix: | wtm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in nonvested OneBeaco restricted shares and the unamortized grant date fair value. + References No definition available. + Details
Name: | wtm_ScheduleOfNonvestedOneBeaconRestrictedShareActivityTableTextBlock
Namespace Prefix: | wtm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in nonvested performance shares outstanding and the amount accrued for performance shares. + References No definition available. + Details
Name: | wtm_ScheduleOfNonvestedPerformanceShareActivityTableTextBlock
Namespace Prefix: | wtm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in nonvested restricted shares and the unamortized grant date fair value. + References No definition available. + Details
Name: | wtm_ScheduleOfNonvestedRestrictedStockActivityTableTextBlock
Namespace Prefix: | wtm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of OneBeacon performance shares outstanding and the amount accrued by performance cycle, under the OneBeacon Incentive Plan. + References No definition available. + Details
Name: | wtm_ScheduleOfOneBeaconPerformanceSharesOutstandingAndAccruedExpenseByPerformanceCycleUnderOneBeaconIncentivePlanTableTextBlock
Namespace Prefix: | wtm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of performance shares outstanding and the amount accrued by performance cycle, under the entity's Incentive Plan. + References No definition available. + Details
Name: | wtm_ScheduleOfPerformanceSharesOutstandingAndAccruedExpenseByPerformanceCycleUnderIncentivePlanTableTextBlock
Namespace Prefix: | wtm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration