Portfolio Loans Covered by Loss Share ("Covered") - Summary of Aging of the Recorded Investment in Past Due Covered Loans by Portfolio Class and Category (Details) (Covered Loans, USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	$ 6,466	$ 2,783
90 or More Days Past Due	19,809	26,175
Total Past Due	26,275	28,958
Current	114,263	172,160
Total	140,538	201,118
Commercial & Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	397	319
90 or More Days Past Due	573	3,925
Total Past Due	970	4,244
Current	8,301	17,790
Total	9,271	22,034
Consumer & Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	0	1
90 or More Days Past Due	0	2
Total Past Due	0	3
Current	1,773	1,271
Total	1,773	1,274
Commercial - Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	255	887
90 or More Days Past Due	6,595	5,144
Total Past Due	6,850	6,031
Current	25,675	41,109
Total	32,525	47,140
Commercial - Investor Owned
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	5,143	308
90 or More Days Past Due	3,167	665
Total Past Due	8,310	973
Current	39,836	56,629
Total	48,146	57,602
Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	32	36
90 or More Days Past Due	4,198	13,532
Total Past Due	4,230	13,568
Current	10,095	16,969
Total	14,325	30,537
Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	639	1,232
90 or More Days Past Due	5,276	2,907
Total Past Due	5,915	4,139
Current	28,583	38,392
Total	$ 34,498	$ 42,531