Loans Receivable and Allowance for Loan Losses - Covered Loans (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Covered Nonperforming Assets
Covered loans on non-accrual status	$ 1,610	$ 236
Covered other real estate owned	352	590
Total covered nonperforming assets	1,962	826
Acquired covered loans	$ 49,149	$ 55,088