Investments (Tables)

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following table details the difference between cost or adjusted/amortized cost and estimated fair value, by major investment category, at December 31, 2016 and 2015:

	Cost or Adjusted/Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
December 31, 2016
U.S. government and agency securities	$	151,656	$	189	$	1,893	$	149,952
Foreign governments	2,031		30		—		2,061
States, municipalities and political subdivisions	170,636		1,027		2,551		169,112
Public utilities	7,687		116		73		7,730
Corporate securities	164,424		1,238		1,126		164,536
Redeemable preferred stocks	1,182		5		62		1,125
Total fixed maturities	497,616		2,605		5,705		494,516
Public utilities	1,343		164		—		1,507
Other common stocks	19,815		4,552		319		24,048
Nonredeemable preferred stocks	2,916		10		83		2,843
Total equity securities	24,074		4,726		402		28,398
Other investments	5,493		267		27		5,733
Total investments	$	527,183	$	7,598	$	6,134	$	528,647
December 31, 2015
U.S. government and agency securities	$	81,973	$	148	$	474	$	81,647
Foreign government	2,038		37		—		2,075
States, municipalities and political subdivisions	154,004		2,391		490		155,905
Public utilities	8,398		128		33		8,493
Corporate securities	148,170		880		2,292		146,758
Redeemable preferred stocks	1,832		37		49		1,820
Total fixed maturities	396,415		3,621		3,338		396,698
Mutual funds	26,357		—		14		26,343
Public utilities	1,342		44		34		1,352
Other common stocks	18,624		2,615		545		20,694
Nonredeemable preferred stocks	2,356		67		6		2,417
Total equity securities	48,679		2,726		599		50,806
Other investments	4,980		230		—		5,210
Total investments	$	450,074	$	6,577	$	3,937	$	452,714

Schedule of Realized Gain (Loss)

The following tables detail our realized gains (losses) by major investment category for the years ended December 31, 2016, 2015 and 2014:

	2016					2015					2014
	Gains (Losses)			Fair Value at Sale		Gains (Losses)			Fair Value at Sale		Gains (Losses)			Fair Value at Sale
Fixed maturities	$	1,811		$	56,484	$	727		$	87,141	$	92		$	5,598
Equity securities	64			13,253		1,895			7,790		298			111,325
Total realized gains	1,875			69,737		2,622			94,931		390			116,923
Fixed maturities	(1,136		)	24,464		(595		)	38,485		(228		)	11,389
Equity securities	(192		)	37,790		(1,200		)	4,172		(182		)	1,529
Total realized losses	(1,328		)	62,254		(1,795		)	42,657		(410		)	12,918
Net realized investment gains (losses)	$	547		$	131,991	$	827		$	137,588	$	(20	)	$	129,841

Investments Classified by Contractual Maturity Date

The table below summarizes our fixed maturities at year end by contractual maturity periods. Actual results may differ as issuers may have the right to call or prepay obligations, with or without penalties, prior to the contractual maturity of those obligations.

	December 31, 2016
	Cost or Amortized Cost		Percent of Total		Fair Value		Percent of Total
Due in one year or less	$	36,973	7.4	%	$	36,974	7.5	%
Due after one year through five years	273,784		55.0	%	272,822		55.1	%
Due after five years through ten years	142,452		28.6	%	140,416		28.4	%
Due after ten years	44,407		9.0	%	44,304		9.0	%
Total	$	497,616	100.0	%	$	494,516	100.0	%

Investment Income

The following table summarizes our net investment income by major investment category:

	Year Ended December 31,
	2016			2015			2014
Fixed maturities	$	9,170		$	8,092		$	5,866
Equity securities	996			859			734
Cash and cash equivalents	141			25			9
Other investments	352			222			166
Other assets	20			14			20
Investment income	$	10,679		$	9,212		$	6,795
Investment expenses	(587		)	(267		)	(312		)
Net investment income	$	10,092		$	8,945		$	6,483

Schedule of Unrealized Loss on Investments

The following table presents an aging of our unrealized investment losses by investment class:

	Less Than Twelve Months					Twelve Months or More
	Number of Securities*	Gross Unrealized Losses		Fair Value		Number of Securities*	Gross Unrealized Losses		Fair Value
December 31, 2016
U.S. government and agency securities	186	$	1,893	$	111,216	—	$	—	$	—
States, municipalities and political subdivisions	201	2,551		136,360		—	—		—
Public utilities	8	73		2,222		—	—		—
Corporate securities	215	1,100		88,605		1	26		1,021
Redeemable preferred stocks	7	62		764		—	—		—
Total fixed maturities	617	5,679		339,167		1	26		1,021
Other common stocks	16	140		2,450		17	179		1,732
Nonredeemable preferred stocks	12	52		1,830		7	31		369
Total equity securities	28	192		4,280		24	210		2,101
Other investments	1	27		987		—	—		—
Total	646	$	5,898	$	344,434	25	$	236	$	3,122
December 31, 2015
U.S. government and agency securities	73	$	265	$	44,786	21	$	209	$	11,250
States, municipalities and political subdivisions	61	463		56,971		5	27		7,620
Public utilities	8	4		1,961		1	29		1,015
Corporate securities	242	2,025		92,429		9	267		10,047
Redeemable preferred stocks	7	49		746		—	—		—
Total fixed maturities	391	2,806		196,893		36	532		29,932
Mutual funds	1	14		26,343		—	—		—
Public utilities	4	34		697		—	—		—
Other common stocks	63	497		6,665		3	48		118
Nonredeemable preferred stocks	19	6		1,161		—	—		—
Total equity securities	87	551		34,866		3	48		118
Total	478	$	3,357	$	231,759	39	$	580	$	30,050

Fair Value, Measurement Inputs, Disclosure

The following table presents the fair value of our financial instruments measured on a recurring basis by level at December 31, 2016 and December 31, 2015:

December 31, 2016	Total		Level 1		Level 2		Level 3
U.S. government and agency securities	$	149,952	$	—	$	149,952	$	—
Foreign governments	2,061		—		2,061		—
States, municipalities and political subdivisions	169,112		—		169,112		—
Public utilities	7,730		—		7,730		—
Corporate securities	164,536		—		164,536		—
Redeemable preferred stocks	1,125		1,125		—		—
Total fixed maturities	494,516		1,125		493,391		—
Public utilities	1,507		1,507		—		—
Other common stocks	24,048		24,048		—		—
Nonredeemable preferred stocks	2,843		2,843		—		—
Total equity securities	28,398		28,398		—		—
Other investments	5,733		300		3,735		1,698
Total investments	$	528,647	$	29,823	$	497,126	$	1,698
December 31, 2015
U.S. government and agency securities	$	81,647	$	—	$	81,647	$	—
Foreign governments	2,075		—		2,075		—
States, municipalities and political subdivisions	155,905		—		155,905		—
Public utilities	8,493		—		8,493		—
Corporate securities	146,758		—		146,758		—
Redeemable preferred stocks	1,820		1,820		—		—
Total fixed maturities	396,698		1,820		394,878		—
Mutual Funds	26,343		26,343		—		—
Public utilities	1,352		1,352		—		—
Other common stocks	20,694		20,694		—		—
Nonredeemable preferred stocks	2,417		2,417		—		—
Total equity securities	50,806		50,806		—		—
Other investments	5,210		300		3,055		1,855
Total investments	$	452,714	$	52,926	$	397,933	$	1,855

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The table below presents the rollforward of our Level 3 investments held at fair value during the year ended December 31, 2016:

	Other Investments
December 31, 2015	$	1,855
Transfers in	—
Partnership income	143
Return of capital	(311		)
Unrealized gains in accumulated other comprehensive income	11
December 31, 2016	$	1,698

Other Investments Not Readily Marketable [Table Text Block]

The information presented in the table below is as of December 31, 2016.

	Initial Investment		Book Value		Unrealized Gain		Unrealized Loss		Fair Value
DCR Mortgage Partners VI, L.P.	$	382	$	444	$	267	$	—	$	711
RCH Mortgage Fund VI Investors, LP	1,000		1,014		—		27		987
Total Level 3 limited partnership investments	1,382		1,458		267		27		1,698
Kayne Senior Credit Fund II, L.P.	1,575		1,450		—		—		1,450
DCR Mortgage Partners VII, L.P.	2,000		2,045		—		—		2,045
Blackstone Alternative Solutions 2015 Trust	240		240		—		—		240
Total Level 2 limited partnership investments	3,815		3,735		—		—		3,735
Total limited partnership investments	$	5,197	$	5,193	$	267	$	27	$	5,433
Other short-term investments	300		300		—		—		300
Total other investments	$	5,497	$	5,493	$	267	$	27	$	5,733

Fair Value Inputs, Assets, Quantitative Information [Table Text Block]

	Fair Value			Valuation		Rate
	Impact			Technique	Unobservable Input	Adjustment
December 31, 2016
DCR VI	$	(56	)	Discounted cash flow	Discount rate based on D&B paydex scale	2.35%
RCH	$	(341	)	Discounted cash flow	Discount rate based on D&B paydex scale	7.35%
December 31, 2015
DCR VI	$	(88	)	Discounted cash flow	Discount rate based on D&B paydex scale	2.35%
RCH	$	(341	)	Discounted cash flow	Discount rate based on D&B paydex scale	7.35%