Employee Share-Based Incentive Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

The following table summarizes performance share activity for the three months ended March 31, 2015 and 2014 for performance shares granted under the WTM Incentive Plan:



	Three Months Ended March 31,
	2015					2014
Millions, except share amounts	Target Performance Shares Outstanding		Accrued Expense			Target Performance Shares Outstanding		Accrued Expense
Beginning of period	123,549		$	48.1		119,220		$	60.2
Shares paid or expired⁽¹⁾	(37,977	)	(27.3		)	(37,130	)	(26.7		)
New grants	30,640		—			45,660		—
Assumed forfeitures and cancellations⁽²⁾	184		.6			(213	)	.4
Expense recognized	—		6.2			—		8.4
Ending of period	116,396		$	27.6		127,537		$	42.3

⁽¹⁾WTM performance share payments in 2015 for the 2012-2014 performance cycle ranged from 91% to 145.5% of target. WTM performance share payments in 2014 for the 2011-2013 performance cycle ranged from 88% to 131.5% 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 March 31, 2015 for each performance cycle:



Millions, except share amounts	Target Performance Shares Outstanding		Accrued Expense
Performance cycle:
2015 – 2017	30,640		$	1.8
2014 – 2016	41,937		5.6
2013 – 2015	46,803		20.9
Sub-total	119,380		28.3
Assumed forfeitures	(2,984	)	(.7		)
Total at March 31, 2015	116,396		$	27.6

Summary of restricted share activity

The following table summarizes the unrecognized compensation cost associated with the outstanding restricted share awards for the three months ended March 31, 2015 and 2014:



	Three Months Ended March 31,
	2015					2014
Millions, except share amounts	Restricted Shares		Unamortized Issue Date Fair Value			Restricted Shares		Unamortized Issue Date Fair Value
Non-vested,
Beginning of period	83,314		$	14.3		94,130		$	17.0
Issued	22,890		15.2			20,400		11.8
Vested	(35,079	)	—			(33,205	)	—
Forfeited	—		—			—		—
Expense recognized	—		(3.0		)	—		(4.0		)
Non-vested at March 31,	71,125		$	26.5		81,325		$	24.8

Summary of performance share activity for OneBeacon performance shares granted under OneBeacon Incentive Plan

The following table summarizes performance share activity for the three months ended March 31, 2015 and 2014 for OneBeacon performance shares granted under the OneBeacon Incentive Plan:



	Three Months Ended March 31,
	2015					2014
Millions, except share amounts	Target Performance Shares Outstanding		Accrued Expense			Target Performance Shares Outstanding		Accrued Expense
Beginning of period	517,470		$	3.4		493,421		$	4.0
Shares paid or expired⁽¹⁾	(181,290	)	(1.5		)	(142,138	)	(1.0		)
New grants	154,887		—			165,800		—
Assumed forfeitures and cancellations⁽²⁾	(28,920	)	—			(4,145	)	—
Expense recognized	—		.2			—		.6
Ending of period	462,147		$	2.1		512,938		$	3.6

⁽¹⁾ OneBeacon performance share payments in 2015 for the 2012-2014 performance cycle were at 45.7% of target. OneBeacon performance share payments in 2014 for the 2011-2013 performance cycle were at 37.1% of target.

⁽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 March 31, 2015 for each performance cycle:



Millions, except share amounts	Target Performance Shares Outstanding		Accrued Expense
Performance cycle:
2015 – 2017	154,887		$	.2
2014 – 2016	151,810		.5
2013 – 2015	167,300		1.4
Sub-total	473,997		2.1
Assumed forfeitures	(11,850	)	—
Total at March 31, 2015	462,147		$	2.1

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 months ended March 31, 2015 and 2014:



	Three Months Ended March 31,
	2015					2014
Millions, except share amounts	Restricted Shares		Unamortized Issue Date Fair Value			Restricted Shares		Unamortized Issue Date Fair Value
Non-vested,
Beginning of period	612,500		$	3.5		915,000		$	6.5
Issued	75,950		1.1			—		—
Vested	(296,000	)	—			(300,000	)	—
Forfeited	(1,500	)	—			(2,500	)	—
Expense recognized	—		(.6		)	—		(.8		)
Non-vested at March 31,	390,950		$	4.0		612,500		$	5.7