Fair Value Part 2 (Details) (Fair Value, Measurements, Recurring [Member], Fair Value, Inputs, Level 3 [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Other Assets - Derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 2,284		$ 702
Total net (losses) gains included in net income	2,816	[1]	1,118	[1]
Additions	0		0
Sales	(3,163)		(1,318)
Ending Balance	1,937		502
The amount of total (losses) gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period	427		(130)
MSR [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	47,341		43,274
Total net (losses) gains included in net income	(1,333)	[1]	(1,858)	[1]
Additions	5,521		4,477
Sales	0		0
Ending Balance	51,529		45,893
The amount of total (losses) gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period	$ 1,127		$ 248

[1] Total net (losses) gains included in net income relating to MSR includes changes in fair value due to market changes and due to runoff.