Residential Mortgage Servicing Rights (Schedule Of Changes In Mortgage Servicing Rights) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$ 127,206	$ 114,192	$ 117,259	$ 47,765
Acquired/purchased MSR	0	0	0	62,770
Additions for new MSR capitalized	7,711	8,813	27,812	16,583
Due to changes in model inputs or assumptions	(6,794)	(672)	(5,860)	(2,543)
Other	(3,309)	(3,608)	(14,397)	(5,850)
Balance, end of period	$ 124,814	$ 118,725	$ 124,814	$ 118,725