Intangible Assets (Activity for Capitalized MSRs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Capitalized MSRs [Roll Forward]
Balance at beginning of period			$ 15,388
Amortization			(2,794)	(2,935)
Balance at end of period	13,865	10,243	13,865	10,243
Mortgage servicing rights [Member]
Capitalized MSRs [Roll Forward]
Balance at beginning of period	3,421	3,463	3,478	3,593
Additions	311	503	1,271	1,706
Amortization	(333)	(500)	(1,350)	(1,833)
Balance at end of period	$ 3,399	$ 3,466	$ 3,399	$ 3,466