Investment income and other gains and losses (Tables)

9 Months Ended

Sep. 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   September 30,				Nine Months Ended   September 30,
	2017		2016		2017		2016
	($000 omitted)
Realized gains	548		3,301		1,392		8,377
Realized losses	(1,595	)	(48	)	(2,828	)	(3,671	)
	(1,047	)	3,253		(1,436	)	4,706

Proceeds from sale of investments available-for-sale

The amortized costs and fair values follow:

	September 30, 2017		December 31, 2016
	Amortized costs	Fair values	Amortized costs	Fair values
	($000 omitted)
Debt securities:
Municipal	71,849	73,355	72,284	72,432
Corporate	334,143	342,760	338,365	343,047
Foreign	215,664	214,567	165,735	167,027
U.S. Treasury Bonds	12,837	12,721	12,795	12,613
Equity securities	29,900	36,279	30,255	36,384
	664,393	679,682	619,434	631,503

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

	Three Months Ended   September 30,		Nine Months Ended   September 30,
	2017	2016	2017	2016
	($000 omitted)
Proceeds from sales of investments available-for-sale	5,878	16,839	55,533	49,666