Investment and other (losses) gains - net (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Gross realized investment and other gains and losses

Investments and other (losses) gains are detailed as follows:

	Three Months Ended   June 30,				Six Months Ended   June 30,
	2018		2017		2018		2017
	($000 omitted)
Realized gains	603		279		1,166		845
Realized losses	(38	)	(955	)	(68	)	(1,234	)
Net unrealized investment gains (losses) recognized on equity securities held	1,828		—		(376	)	—
	2,393		(676	)	722		(389	)

Investments in equity securities still held

The total fair values of the Company's investments in debt and equity securities are detailed below:

	June 30, 2018	December 31, 2017
	($000 omitted)
Investments in:
Debt securities	637,883	671,441
Equity securities	35,450	37,914
	673,333	709,355

Following the adoption of ASU 2016-01 discussed in Notes 1 and 3, net investment losses recognized during the three and six months ended June 30, 2018 related to investments in equity securities still held as of June 30, 2018 are calculated as follows ($000 omitted):

	June 30, 2018
	Three Months Ended		Six Months Ended
	($000 omitted)
Total net investment gains (losses) recognized on equity securities during the period	1,612		(614	)
Less: Net realized losses on equity securities sold during the period	(216	)	(238	)
Net unrealized investment gains (losses) recognized on equity securities still held	1,828		(376	)

Proceeds from sale of investments available-for-sale

Proceeds from sales of investments in securities are as follows:

	Three Months Ended   June 30,		Six Months Ended   June 30,
	2018	2017	2018	2017
	($000 omitted)
Proceeds from sales of debt securities	8,003	33,776	21,149	48,826
Proceeds from sales of equity securities	2,353	36	4,573	829
Total proceeds from sales of investment in securities	10,356	33,812	25,722	49,655