Investment income and other gains and losses (Tables)

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Gross Realized Investment and Other Gains and Losses

Gross realized investment and other gains and losses follows:

	For the Three Months Ended   September 30,				For the Nine Months Ended   September 30,
	2016		2015		2016		2015
	($000 omitted)
Realized gains	3,301		968		8,377		3,195
Realized losses	(48	)	(1,779	)	(3,671	)	(2,467	)
	3,253		(811	)	4,706		728

Proceeds from Sale of Investments Available-for-Sale

The amortized costs and fair values follow:

	September 30, 2016		December 31, 2015
	Amortized costs	Fair values	Amortized costs	Fair values
	($000 omitted)
Debt securities:
Municipal	72,725	75,421	70,300	72,008
Corporate	341,005	358,164	303,870	309,461
Foreign	156,444	162,798	149,914	153,221
U.S. Treasury Bonds	12,793	12,883	13,803	13,906
Equity securities	29,854	34,425	27,497	31,253
	612,821	643,691	565,384	579,849

Proceeds from the sale of investments available-for-sale follows:

	For the Three Months Ended   September 30,		For the Nine Months Ended   September 30,
	2016	2015	2016	2015
	($000 omitted)
Proceeds from sale of investments available-for-sale	16,839	14,378	49,666	60,314