Share-Based Compensation Plan Restricted stock service awards and performance awarded under the 2006 Equity Compensation Plan (Details) (2006 Equity Compensation Plan [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of year (in shares)	109,944	64,518	16,878
Granted (in shares)	32,500	49,975	55,563
Vested (in shares)	(10,944)	(4,549)	(7,923)
Forfeited (in shares)	(12,250)	0	0
Non-vested at end of period (in shares)	119,250	109,944	64,518
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of year (in dollars per share)	$ 15.83	$ 14.96	$ 16.24
Granted (in dollars per share)	$ 17.96	$ 16.86	$ 15.06
Vested (in dollars per share)	$ 15.54	$ 14.79	$ 18.38
Forfeited (in dollars per share)	$ 16.33	$ 0.00	$ 0.00
Non-vested at end of period (in dollars per share)	$ 16.39	$ 15.83	$ 14.96
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]
Non-vested at end of period	$ 2,151	$ 1,942	$ 919
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of year (in shares)	10,511	21,702	21,702
Granted (in shares)	0	0	0
Vested (in shares)	(10,511)	(8,383)	0
Forfeited (in shares)	0	(2,808)	0
Non-vested at end of period (in shares)	0	10,511	21,702
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of year (in dollars per share)	$ 13.92	$ 14.27	$ 14.27
Granted (in dollars per share)	$ 0.00	$ 0.00	$ 0.00
Vested (in dollars per share)	$ 13.92	$ 14.59	$ 0.00
Forfeited (in dollars per share)	$ 0.00	$ 14.59	$ 0.00
Non-vested at end of period (in dollars per share)	$ 0.00	$ 13.92	$ 14.27
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]
Non-vested at end of period	$ 0	$ 186	$ 309