Mergers and Acquisition Mergers and Acquisitions-Assets Acquired and Liabilities Assumed (Details) (First M&F Merger [Member], USD $) In Thousands, unless otherwise specified	Sep. 01, 2013
Business Acquisition [Line Items]
Cash and cash equivalents	$ 170,061
Securities	227,693
Mortgage loans held for sale	1,659
Premises and equipment	33,014
Other real estate owned	13,527
Intangible assets	115,581
Other assets	55,767
Total assets	1,516,548
Financial liabilities	1,325,872
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	25,346
Other liabilities	9,806
Loans [Member]
Business Acquisition [Line Items]
Loans, net of unearned income	$ 899,246