Investment income and other gains and losses (Tables)

6 Months Ended

Jun. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Gross realized investment and other gains and losses

Gross realized investment and other gains and losses follows:

	Three Months Ended   June 30,				Six Months Ended   June 30,
	2017		2016		2017		2016
	($000 omitted)
Realized gains	279		1,139		845		5,076
Realized losses	(955	)	(173	)	(1,234	)	(3,622	)
	(676	)	966		(389	)	1,454

Proceeds from sale of investments available-for-sale

The amortized costs and fair values follow:

	June 30, 2017		December 31, 2016
	Amortized costs	Fair values	Amortized costs	Fair values
	($000 omitted)
Debt securities:
Municipal	72,214	73,601	72,284	72,432
Corporate	324,116	332,226	338,365	343,047
Foreign	199,369	200,669	165,735	167,027
U.S. Treasury Bonds	13,016	12,894	12,795	12,613
Equity securities	30,345	35,372	30,255	36,384
	639,060	654,762	619,434	631,503

Proceeds from sales of investments available-for-sale are as follows:

	Three Months Ended   June 30,		Six Months Ended   June 30,
	2017	2016	2017	2016
	($000 omitted)
Proceeds from sales of investments available-for-sale	33,812	21,500	49,655	32,827