Investments Reconciliation, Investments by Category (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 527,183	$ 450,074
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	7,598	6,577
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	6,134	3,937
Investments	528,647	452,714
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	151,656	81,973
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	189	148
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	1,893	474
Available-for-sale Securities, Debt Securities	149,952	81,647
Foreign Government Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	2,031	2,038
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	30	37
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	0	0
Available-for-sale Securities, Debt Securities	2,061	2,075
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	170,636	154,004
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	1,027	2,391
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	2,551	490
Available-for-sale Securities, Debt Securities	169,112	155,905
Public Utility, Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	7,687	8,398
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	116	128
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	73	33
Available-for-sale Securities, Debt Securities	7,730	8,493
All Other Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	164,424	148,170
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	1,238	880
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	1,126	2,292
Available-for-sale Securities, Debt Securities	164,536	146,758
Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	1,182	1,832
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	5	37
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	62	49
Available-for-sale Securities, Debt Securities	1,125	1,820
Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	497,616	396,415
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	2,605	3,621
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	5,705	3,338
Available-for-sale Securities, Debt Securities	494,516	396,698
Mutual Fund [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis		26,357
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments		0
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments		14
Available-for-sale Securities, Equity Securities		26,343
Public Utility, Equities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis	1,343	1,342
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	164	44
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	0	34
Available-for-sale Securities, Equity Securities	1,507	1,352
Other Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis	19,815	18,624
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	4,552	2,615
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	319	545
Available-for-sale Securities, Equity Securities	24,048	20,694
Nonredeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis	2,916	2,356
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	10	67
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	83	6
Available-for-sale Securities, Equity Securities	2,843	2,417
Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis	24,074	48,679
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	4,726	2,726
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	402	599
Available-for-sale Securities, Equity Securities	28,398	50,806
Other Long-term Investments
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	5,493	4,980
Available-for-sale Securities, Gross Unrealized Gain, Accumulated in Investments	267	230
Available-for-sale Securities, Gross Unrealized Loss, Accumulated in Investments	27	0
Other Long-term Investments	$ 5,733	$ 5,210

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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