Loans Loan Balances By Classification (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Loans
Balance	$ 2,072,440	$ 1,620,898
Loan Type
Loans
Balance	2,072,440	1,620,898
Originated Loan | Loan Type
Loans
Balance	1,414,639	1,212,014
Originated Loan | Commercial real estate, construction
Loans
Balance	63,785	37,901
Originated Loan | Commercial real estate
Loans
Balance	534,969	472,561
Originated Loan | Commercial and industrial
Loans
Balance	288,130	249,975
Originated Loan | Residential real estate
Loans
Balance	288,783	254,169
Originated Loan | Home equity lines of credit
Loans
Balance	74,176	62,463
Originated Loan | Consumer
Loans
Balance	227,133	169,913
Originated Loan | Deposit account overdrafts
Loans
Balance	1,448	2,933
Acquired Loans | Loan Type
Loans
Balance	657,801	408,884
Acquired Loans | Commercial real estate, construction
Loans
Balance	12,114	1,051
Acquired Loans | Commercial real estate
Loans
Balance	277,206	122,526
Acquired Loans | Commercial and industrial
Loans
Balance	63,589	30,056
Acquired Loans | Residential real estate
Loans
Balance	276,772	225,274
Acquired Loans | Home equity lines of credit
Loans
Balance	32,253	18,232
Acquired Loans | Consumer
Loans
Balance	7,981	12,796
Acquired Loans | Deposit account overdrafts
Loans
Balance	$ 0	$ 0