Fair Value of Financial Instruments (Level 3 Securities) (Details) (Recurring [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014		Sep. 30, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 19,251		$ 19,988
Realized gains (losses)	11	[1]	(45)	[1]
Unrealized gains (losses)	(63)	[1]	(46)	[1]
Purchases	4		148
Disposals	(505)		(1,347)
Ending Balance	18,698		18,698
States, Municipalities and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	610		698
Realized gains (losses)	0	[1]	0	[1]
Unrealized gains (losses)	0	[1]	(18)	[1]
Purchases	0		0
Disposals	0		(70)
Ending Balance	610		610
Corporate Bonds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	12,927		13,480
Realized gains (losses)	11	[1]	11	[1]
Unrealized gains (losses)	(55)	[1]	(107)	[1]
Purchases	4		4
Disposals	(386)		(887)
Ending Balance	12,501		12,501
Asset-Backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	1,842		2,029
Realized gains (losses)	0	[1]	0	[1]
Unrealized gains (losses)	(8)	[1]	31	[1]
Purchases	0		0
Disposals	(119)		(345)
Ending Balance	1,715		1,715
Equities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	3,872		3,781
Realized gains (losses)	0	[1]	(56)	[1]
Unrealized gains (losses)	0	[1]	48	[1]
Purchases	0		144
Disposals	0		(45)
Ending Balance	$ 3,872		$ 3,872

[1] Realized gains (losses) are recorded as a component of earnings, whereas unrealized gains are recorded as a component of comprehensive income.