Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net (loss) income	$ 12,800	$ (17,800)	$ 19,200
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, net	8,900	12,500	14,600
Share-based compensation	11,100	4,200	3,700
Net realized gain on investments	49,700	(65,100)	(36,500)
Changes in operating assets and liabilities:
Deferred policy acquisition benefits	8,400	11,500	(1,400)
Accrued investment income and other assets	3,900	3,500	(4,500)
Postretirement and pension benefits	(16,900)	(14,800)	(48,000)
Reinsurance recoverable on losses and loss expenses payable and prepaid reinsurance premiums	(2,600)	200	3,000
Other liabilities and due to/from affiliates, net	47,600	11,300	33,700
Losses and loss expenses payable	(108,800)	74,000	128,600
Unearned premiums	(27,600)	(6,000)	1,500
Excess tax expense on share-based awards	900	0	(200)
Federal income taxes	(800)	54,400	(200)
Net cash provided by operating activities	(13,400)	67,900	113,500
Cash flows from investing activities:
Purchases of fixed maturities available-for-sale	(349,600)	(505,400)	(589,300)
Purchases of equity securities available-for-sale	(91,400)	(185,900)	(143,100)
Purchases of other invested assets	(1,800)	(1,400)	(1,500)
Maturities, calls and pay downs of fixed maturities available-for-sale	229,800	233,600	240,900
Sales of fixed maturities available-for-sale	98,000	184,800	211,600
Sales of equity securities available-for-sale	97,800	252,700	153,000
Sales of other invested assets available-for-sale	1,200	1,100	800
Net cash used in investing activities	(16,000)	(20,500)	(127,600)
Cash flows from financing activities:
Proceeds from issuance of common stock	15,400	10,200	2,200
Payments to acquire treasury stock	(200)	(300)	(200)
Payments of dividends (affiliates $10.4, $10.4 and $10.4, respectively)	(17,100)	(16,900)	(16,600)
Payment for Debt Extinguishment or Debt Prepayment Cost	400	0	0
Excess tax expense on share-based awards	0	0	200
Proceeds from long-term debt	0	0	21,500
Net cash (used in) provided by financing activities	(2,300)	(7,000)	7,100
Net increase (decrease) in cash and cash equivalents	(31,700)	40,400	(7,000)
Cash and cash equivalents at beginning of year	91,500	51,100	58,100
Cash and cash equivalents at end of year	59,800	91,500	51,100
Supplemental disclosures:
Interest paid (affiliates $0.8, $0.8 and $0.7, respectively)	5,700	5,700	5,400
Proceeds from Income Tax Refunds	$ 0	$ (1,600)	$ 0