Residential Mortgage Servicing Rights (Schedule Of Changes In Mortgage Servicing Rights) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$ 117,172	$ 116,365	$ 131,817	$ 117,259
Additions for new MSR capitalized	8,863	11,264	14,843	20,101
Due to changes in model inputs or assumptions	(6,836)	5,077	(17,087)	934
Other	(7,104)	(5,500)	(17,478)	(11,088)
Balance, end of period	$ 112,095	$ 127,206	$ 112,095	$ 127,206