Portfolio Loans Covered by Loss Share (Covered loans) - Summary of Covered Loans by Category (Details) (Covered Loans, USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Covered Loans [Line Items]
Recorded Investment Covered Loans	$ 118,504	$ 140,538
Construction and Land Development
Covered Loans [Line Items]
Weighted-Average Risk Rating	6.46	6.84
Recorded Investment Covered Loans	7,885	14,325
Commercial Real Estate Investor Owned
Covered Loans [Line Items]
Weighted-Average Risk Rating	7.07	6.81
Recorded Investment Covered Loans	41,699	48,146
Commercial Real Estate Owner Occupied
Covered Loans [Line Items]
Weighted-Average Risk Rating	6.58	6.75
Recorded Investment Covered Loans	30,396	32,525
Residential Real Estate
Covered Loans [Line Items]
Weighted-Average Risk Rating	5.94	5.92
Recorded Investment Covered Loans	30,736	34,498
Real Estate Loans
Covered Loans [Line Items]
Recorded Investment Covered Loans	110,716	129,494
Commercial & Industrial
Covered Loans [Line Items]
Weighted-Average Risk Rating	6.93	6.87
Recorded Investment Covered Loans	7,300	9,271
Consumer & Other
Covered Loans [Line Items]
Weighted-Average Risk Rating	4.30	6.47
Recorded Investment Covered Loans	$ 488	$ 1,773

Portfolio Loans Covered by Loss Share (Covered loans) - Summary of Covered Loans by Category (Details) (Covered Loans, USD $)
In Thousands, unless otherwise specified

Jun. 30, 2014

Dec. 31, 2013

Covered Loans [Line Items]

Recorded Investment Covered Loans

$ 118,504

$ 140,538

Construction and Land Development

Covered Loans [Line Items]

Weighted-Average Risk Rating

6.46

6.84

Recorded Investment Covered Loans