Acquisitions Loans Transferred In (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014
Loans Transferred In [Abstract]
Certain Loans Acquired in Transfer Without Evidence of Credit Deterioration, Acquired During Period, Contractually Required Payments Receivable at Acquisition	$ 445,345
Certain Loans Acquired in Transfer Without Evidence of Credit Deterioration, Acquired During Period, Contractual Cash Flows Not Expected to be Collected	(15,090)
Certain Loans Acquired in Transfer Without Evidence of Credit Deterioration, Acquired During Period, at Acquisition, at Fair Value	$ 327,383