Acquisitions (Schedule of Net Liabilities Acquired) (Details) (Bank of America, National Association [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	May 02, 2014
Bank of America, National Association [Member]
Assets:
Cash	$ 1,776,660	$ 1,800,000
Loans receivable, net	12,881
Property and equipment, net	25,097	25,000
Core deposit intangible	11,040
Goodwill	31,225
Other assets	70
Total Assets	1,856,973	13,000
Liabilities:
Customer accounts	1,853,798
Other liabilities	3,175
Total Liabilities	1,856,973	1,900,000
Net assets acquired	$ 0