Statutory Accounting and Regulation Statutory Accounting Practices Disclosure - Net Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statutory Accounting Practices [Line Items]
Net Income (Loss) Attributable to Parent	$ 41,013	$ 20,342	$ 9,705
Net Income (Loss) Available to Common Stockholders, Basic	41,013	20,342	9,705
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Commissions	(12,258)	2,281	10,438
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Deferred Income Taxes	64	(3,992)	(4,262)
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Deferred Policy Acquisition Costs	(788)	(868)	(688)
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Allowance for Doubtful Accounts	5	5	(53)
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Assessments	(78)	(1,567)	1,636
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Prepaid Expenses	(136)	22	131
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Premium Deficiency Reserve	0	0	(302)
Statutory Accounting Practices, GAAP TO Statutory, Increase (Decrease) Due to Operations of Non-Statutory Subsidiaries	(14,915)	(9,023)	(10,696)
Statutory Accounting Practices, Statutory Net Income Amount	$ 12,907	$ 7,200	$ 5,909