Other Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Expense
Business development and staff related	$ 6,642	$ 5,684	$ 4,962
Other loan expense	2,942	2,056	2,220
Courier expense	2,118	1,550	1,290
Director and shareholder expense	1,362	616	662
Property and sales tax	1,354	1,559	962
Other	7,031	7,426	6,698
Total other noninterest expense	$ 21,449	$ 18,891	$ 16,794