Mortgage Banking Operations (Key economic assumptions) (Details)		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Rates per annum [Abstract]
Constant prepayment rate (CPR)	[1],[2]	15.62%	13.31%	16.30%	14.56%
Discount rate	[2],[3]	10.57%	10.06%	10.44%	10.28%

[1] Represents the expected lifetime average.

[2] Weighted average rates for sales during the period for sales of loans with similar characteristics.

[3] Discount rate is a rate based on market observations.