Schedule II Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Income Statements, Captions [Line Items]
Net investment income									$ 27,201	$ 17,812	$ 10,679
Unrealized Gain (Loss) on Securities									(9,300)	0	0
Total revenue	$ 181,089	$ 187,652	$ 183,148	$ 180,127	$ 182,586	$ 171,128	$ 178,073	$ 122,633	723,942	654,420	487,117
Operating Expenses									40,590	27,675	20,524
General and Administrative Expense									66,112	81,762	42,956
Interest Expense									9,866	3,247	723
Total expenses									728,297	653,663	480,214
Operating Income (Loss)									(4,355)	757	6,903
Other Income									116	153	100
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									4,239	(910)	(7,003)
Income Tax Expense (Benefit)									(4,633)	(9,235)	1,305
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(10,968)	(11,707)	14,701	8,369	27,001	(28,012)	7,257	3,899	394	10,145	5,698
Net income	(11,071)	(11,708)	14,701	8,369	27,001	(28,012)	7,257	3,899	290	10,145	5,698
Net Income (Loss) Attributable to Noncontrolling Interest	$ 103	$ 1	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	104	0	0
Change in net unrealized gain (loss) on investments									(22,264)	10,647	(629)
Reclassification adjustment for net realized investment gains									(1,655)	(67)	(547)
Income tax benefit (expense) related to items of other comprehensive income									5,703	(2,181)	378
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									(17,822)	18,544	4,900
Total comprehensive income									(17,961)	18,544	4,900
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest									139	0	0
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Income (Loss) from Subsidiaries, Net of Tax									10,124	14,000	13,296
Realized Investment Gains (Losses)									(160)	0	(14)
Net investment income									2,353	53	88
Unrealized Gain (Loss) on Securities									(1,223)	0	0
Total revenue									11,094	14,053	13,370
Operating Expenses									198	348	337
General and Administrative Expense									3,416	9,078	11,805
Interest Expense									9,557	2,939	496
Total expenses									13,171	12,365	12,638
Operating Income (Loss)									(2,077)	1,688	732
Other Income									11	75	60
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									2,066	(1,763)	(792)
Income Tax Expense (Benefit)									(2,460)	(8,382)	(4,906)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									394	10,145	5,698
Net income									290	10,145	5,698
Net Income (Loss) Attributable to Noncontrolling Interest									104	0	0
Change in net unrealized gain (loss) on investments									(22,264)	10,647	(629)
Reclassification adjustment for net realized investment gains									(1,655)	(67)	(547)
Income tax benefit (expense) related to items of other comprehensive income									5,703	(2,181)	378
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									(17,822)	18,544	4,900
Total comprehensive income									(17,961)	18,544	4,900
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest									$ 139	$ 0	$ 0