Other Noninterest Income and Other Noninterest Expense (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Noninterest Income and Other Noninterest Expense [Abstract]
Other miscellaneous expense	$ 29,535	$ 21,580	$ 30,585