Income Taxes Tax Expense Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 12,070	$ 5,500	$ 4,425
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	1,140	547	472
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount	47	42	38
Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount	699	0	0
Effective Income Tax Rate Reconciliation, Deduction, Other, Amount	(283)	(4)	(69)
Income Tax Expense (Benefit)	$ 14,145	$ 6,009	$ 4,928