LHFI and Allowance for Loan Losses, LHFI - Troubled Debt Restructuring Subsequently Defaulted (Details) - Troubled Debt Restructurings that Subsequently Defaulted [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Contract	Dec. 31, 2015 USD ($) Contract	Dec. 31, 2014 USD ($) Contract
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract	3	5	1
Recorded Investment | $	$ 2,154	$ 260	$ 103
Secured by 1-4 Family Residential Properties [Member]
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract	1	5	1
Recorded Investment | $		$ 260	$ 103
Commercial and Industrial [Member]
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract	2
Recorded Investment | $	$ 2,154