Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Schedule of Common Stock Repurchases

Under the 2012 Repurchase Program and the 2014 Repurchase Program, as applicable, Alleghany repurchased shares of its common stock in the three and six months ended June 30, 2015 and 2014 as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Shares repurchased		29,233		159,014		88,183		401,622
Cost of shares repurchased (in millions)	$	13.9	$	65.3	$	40.5	$	159.9
Average price per share repurchased	$	475.97	$	410.43	$	459.80	$	398.15

Reconciliation of Accumulated Other Comprehensive Income

The following table presents a reconciliation of the changes during the six months ended June 30, 2015 and 2014 in accumulated other comprehensive income attributable to Alleghany stockholders:

	Unrealized Appreciation of Investments			Unrealized Currency Translation Adjustment			Retirement Plans			Total
	(in millions)
Balance as of January 1, 2015	$	455.4		$	(89.2	)	$	(12.6	)	$	353.6
Other comprehensive income, net of tax:
Other comprehensive income before reclassifications		(47.8	)		(7.9	)		(0.4	)		(56.1	)
Reclassifications from accumulated other comprehensive income		(45.3	)		—			—			(45.3	)
Total		(93.1	)		(7.9	)		(0.4	)		(101.4	)
Balance as of June 30, 2015	$	362.3		$	(97.1	)	$	(13.0	)	$	252.2

	Unrealized Appreciation of Investments			Unrealized Currency Translation Adjustment			Retirement Plans			Total
	(in millions)
Balance as of January 1, 2014	$	238.4		$	(49.3	)	$	(2.2	)	$	186.9
Other comprehensive income, net of tax:
Other comprehensive income before reclassifications		357.3			6.2			0.1			363.6
Reclassifications from accumulated other comprehensive income		(85.9	)		—			—			(85.9	)
Total		271.4			6.2			0.1			277.7
Balance as of June 30, 2014	$	509.8		$	(43.1	)	$	(2.1	)	$	464.6

Reclassifications of Accumulated Other Comprehensive Income

Reclassifications out of accumulated other comprehensive income attributable to Alleghany stockholders during the three and six months ended June 30, 2015 and 2014 were as follows:

		Three Months Ended						Six Months Ended
Accumulated Other Comprehensive	Line in Consolidated	June 30,						June 30,
Income Component	Statement of Earnings	2015			2014			2015			2014
		(in millions)
Unrealized appreciation of investments:	Net realized capital gains	$	(86.2	)	$	(41.5	)	$	(129.3	)	$	(138.4	)
	Other than temporary impairment losses		7.3			0.9			59.6			6.2
	Income taxes		27.6			14.2			24.4			46.3
Total reclassifications:	Net earnings	$	(51.3	)	$	(26.4	)	$	(45.3	)	$	(85.9	)